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PROCESSES — GENERAL
1. Individual Process and Finish Codes
A. General Information
This specification contains finish and process letters that have been assigned to individual finishesand processes.
Control specifications such as government, industry or Gulfstream are listed, where applicable, alongwith finish and process description. Gulfstream specifications refer only to those contained elsewherein this manual.
Where two specifications are listed for an item, the upper specification is the material and the lowerthe application specification.
Color numbers shall be in accordance with FED-STD-595, except as otherwise noted.
This specification is not intended to be a complete and comprehensive listing of existing process andfinish information for Gulfstream aircraft. It pertains only to those finishes and processes that arerelevant to the repair of structural components covered in the preceding chapters of this manual.Contact Gulfstream Technical Operations for information not directly available in this specification.See Table 1.
B. Specification Cross Reference List
The following information is provided to ease communication when dealing with Gulfstream TechnicalOperations department in regard to specifications provided in this manual.
Although it has been attempted to relate the intent of the specification, they have not always beentranslated in full.
Should it be necessary to request or refer to the internal Gulfstream document (original), the followinglist shall provide the relevant document information to make the correct request.
In and of itself, the following listing conveys no information of use to an operator beyond abovementioned communication with Gulfstream. See Table 2 for cross reference list.
Table 1: Individual Process And Finish Codes
CODE FINISH / PROCESS GOVERNMENT /INDUSTRY GULFSTREAM
1 Abrasive method, surface prep ____ Preparation of Surfaces by Abrasive Methods,51-28-10, Repair
2 Cadmium plating up to 180 - 200ksi QQ-P-416,Type II, Class 2
20 Corrosion preventative compound MIL-C-16173 Corrosion Inhibitors, 51-13-10, General
35 Black oxide coating MIL-C-13924, Class 1
36Chemical corrosion treatment ofmagnesium and magnesiumalloys
MIL-M-3171 Contact Gulfstream Technical Operations
75 Cadmium coating - Vacuumdeposited
MIL-C-8837, Type II, Class2
76 Chemical film - Alodine 1200 MIL-C-5541, Class 1A Chromate Conversion Coating of Aluminum Alloys,51-21-00, Repair
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CODE FINISH / PROCESS GOVERNMENT /INDUSTRY GULFSTREAM
81 Anticorrosion, fuel resistantcoating, integral fuel cells MIL-C-27725 Integral Fuel Tank Coating - MIL-C-27725
Application, 51-22-00, Repair
84 Anodize (hardcoat) MIL-A-8625, Type III
88 Anodize chromic acid MIL-A-8625, Type 1
92 Antistatic coating Antistatic Epoxy Primer - General Application,51-07-10, Repair
120 Chem film alodine - Exterior MIL-C-81706
123 Brush cadmium plate QQ-P-416, Type II
139 Resin coating, unpigmented MIL-R-3043
144 Corrosion preventative coating -Integral fuel tanks MIL-C-27725 Integral Fuel Tank Coating - MIL-C-27725
Application, 51-22-00, Repair
213 Chemical film - Alodine 600 MIL-C-5541, Class 3 Chromate Conversion Coating of Aluminum Alloys,51-21-00, Repair
222 Epoxy primer ____
Epoxy Primer Coating - Preparation andApplication (Including Finish 2012), 51-07-10,RepairEpoxy Primer Coating - Hydraulic Fluid Resistant(Finish 2012), 51-07-10, Repair
2012 Epoxy primer - Skydrol resistant ____
Epoxy Primer Coating - Preparation andApplication (Including Finish 2012), 51-07-10,RepairEpoxy Primer Coating - Hydraulic Fluid Resistant(Finish 2012), 51-07-10, RepairWaterborne Epoxy Primer - Preparation andApplication (Finish 3012), 51-07-10, Repair
2013 Epoxy, fluid resistant topcoat ____ Gloss Epoxy Finish - Application (Includes Finish2013 and 3013), 51-07-10, Repair
3012 Epoxy primer, skydrol resistant,waterborne ____ Waterborne Epoxy Primer - Preparation and
Application (Finish 3012), 51-07-10, Repair
3013 Epoxy, fluid resistant topcoat ____ Gloss Epoxy Finish - Application (Includes Finish2013 and 3013), 51-07-10, Repair
A Structural adhesive bonding ____Composite Components, 51-78-10, GeneralMetal Honeycomb and Metal to Metal BondedAssemblies, 51-79-10, General
M Magnetic particle inspection MIL-STD-1949
AD Installation solid and tubularrivets ____
Hole Preparation Specification - Metallic andComposite Structure Fasteners, 51-42-00, RepairFasteners - Rivets, 51-41-00, StructuralIdentification
AE Installation blind rivets ____
Hole Preparation Specification - Metallic andComposite Structure Fasteners, 51-42-00, RepairFasteners - Hi-Lok / Hi-Tigue, 51-41-00, StructuralIdentification
AF Installation blind bolts ____
Hole Preparation Specification - Metallic andComposite Structure Fasteners, 51-42-00, RepairFasteners - Hi-Lok / Hi-Tigue, 51-41-00, StructuralIdentification
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CODE FINISH / PROCESS GOVERNMENT /INDUSTRY GULFSTREAM
AG Installation Hi-lok fasteners ____
Hole Preparation Specification - Metallic andComposite Structure Fasteners, 51-42-00, RepairFasteners - Hi-Lok / Hi-Tigue, 51-41-00, StructuralIdentification
AJ Installation Hi-shear blind boltsrivets ____
Hole Preparation Specification - Metallic andComposite Structure Fasteners, 51-42-00, RepairFasteners - Hi-Lok / Hi-Tigue, 51-41-00, StructuralIdentification
APSealing, pressurized areas, skinjoints, faying surfaces, accessclosures and exterior coating
____Sealing Pressurized Areas, Skin Joints, FayingSurfaces, Access Closures and Coating ExteriorSurfaces, 51-22-00, Repair
AS Sealing of surfaces foraerodynamic smoothness ____ Sealing of Surfaces for Aerodynamic Smoothness,
51-14-00, Repair
FB Clean, descale - Titanium andtitanium alloys ____ Cleaning and Descaling of Titanium and Titanium
Alloys, 51-21-00, Repair
FP Penetrant inspect MIL-STD-6866
JBSealing compound; fuel resistant,fillet and faying, -65°F to 360°Fservice
____Fuel Resistant Sealing Compound - Fillet andFaying (−65°F to +360°F Service), 51-21-00,Repair
UA Ultrasonic inspection - Aluminumalloy MIL-STD-2154 Ultrasonic Quality Requirements for Aluminum
Alloy Products, 51-29-00, Repair
US Ultrasonic inspection - Low alloysteel MIL-STD-2154
XR Radiographic inspection MIL-STD-453
PS Passivate CRES QQ-P-35
Table 2: Specification Cross Reference List
SRM TITLE / SECTION GULFSTREAM NO.
Aerodynamic Contour Smoothness, 51-14-00, Repair 1159C-GER-027
Sealing of Surfaces for Aerodynamic Smoothness, 51-14-00, Repair GAMPS 7102
Epoxy Primer Coating - Preparation and Application (Including Finish 2012), 51-07-10,Repair GAMPS 3103
Chromate Conversion Coating of Aluminum Alloys, 51-21-00, Repair GAMPS 6108
Cleaning and Chemical Surface Treatment of Aircraft Surfaces, 51-21-00, Repair GAMPS 3201
Surface Preparation and Painting Procedure, 51-07-10, Repair GAMPS 4000
Alkaline Cleaning of Ferrous and Nonferrous Alloys, 51-21-00, Repair GAMPS 4105
Cleaning and Descaling of Titanium and Titanium Alloys, 51-21-00, Repair GAMPS 4107
Epoxy Primer Coating - Hydraulic Fluid Resistant (Finish 2012), 51-07-10, Repair GMS 5001
Sealing Pressurized Areas, Skin Joints, Faying Surfaces, Access Closures and CoatingExterior Surfaces, 51-22-00, Repair GAMPS 7101
Aerodynamic Sealant Compound, 51-21-00, Repair GAC 115W
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SRM TITLE / SECTION GULFSTREAM NO.
Fuel Resistant Sealing Compound - Fillet and Faying (−65°F to +360°F Service), 51-21-00,Repair GMS 4107
Waterborne Epoxy Primer - Preparation and Application (Finish 3012), 51-07-10, Repair GAMPS 3116
Gloss Epoxy Finish - Application (Includes Finish 2013 and 3013), 51-07-10, Repair GAMPS 3205
Swaging of Tubing to Deutsch PermaswageT Fittings, 51-27-00, Repair GAMPS 2507
Ultrasonic Quality Requirements for Aluminum Alloy Products, 51-29-00, Repair GAMPS 9101
Epoxy Topcoat - Hydraulic Fluid Resistant Series 2000, 51-07-10, Repair GMS 5002
Compound Sealant Polysulfide, 51-22-00, General GC115AL
Faying Surface Sealing Compound - Corrosion Inhibitive, 51-22-00, Repair GMS 4108
Integral Fuel Tank Coating - MIL-C-27725 Application, 51-22-00, Repair GAMPS 3102
Hole Preparation Specification - Metallic and Composite Structure Fasteners, 51-42-00,Repair GAH11AL
Preparation of Surfaces by Abrasive Methods, 51-28-10, Repair GAMPS 4101
Application of Epoxy Polyamide Primer Coating, 51-07-10, Repair GAMPS 3104
Urethane Enamel - Preparation and Application, 51-07-10, Repair GAMPS 3209
White Primer Coating / Sanding Sealer, 51-07-10, Repair GAMPS 3105
GIV Finish Specification, 51-14-00, Repair SP-FS-159-3C
Individual Process and Finish Codes, 51-20-00, General GAF14A
Antistatic Epoxy Primer, 51-07-10, Repair GMS 5003
Antistatic Epoxy Primer - General Application, 51-07-10, Repair GAMPS 3113
Electrical Bonding Requirements, 51-80-00, Repair GAMPS 2605
Metal Honeycomb and Metal to Metal Bonded Assemblies, 51-79-10, GeneralComposite Components, 51-78-10, General
GAMPS 4104
GAMPS 4108
GAMPS 8101
GAMPS 8109
GAMPS 8110
GAMPS 8115
GAMPS 8118
2. Finishes, Processes and Nondestructive Test (NDT) Inspection — Methodology and Equipment
A. Protective Treatment of Aluminum (Optional)
Where chromic acid anodize, MIL-A-8625, Type I is specified, sulfuric acid anodize, nondyed andsealed, per MIL-A-8625, Type II, Class 1 may be substituted.
NOTE: Approval from Gulfstream Technical Operations is required prior to substitution since thereare items where sulfuric acid anodizing may be questionable as a substitution (parts withjoints, seams, recesses, etc. that could entrap fluids or parts that will be adhesive bonded).
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Where Alodine 1000 is called out on drawings, sulfuric acid anodize, nondyed, unsealed, per MIL-A-8625, Type II, Class 1 may be substituted.
NOTE: Restricted to stair treads and associated hardware.
Where Alodine 1000 or MIL-C-5541, Class 1A is specified Alodine 600 may be substituted.
Where Alodine 600 / MIL-C-5541, Class 3 is specified, Alodine 1200 may be substituted.
NOTE: In order to maintain an equivalent electrical conductivity with the Alodine 1200 finish it iscritical that the proper solution concentrations and immersion dwell times per chromateconversion coating of aluminum alloys be adhered to. See Chromate Conversion Coating ofAluminum Alloys, 51-21-00, Repair.
B. Cadmium Plating of Steel Parts (Optional)
Where electro-deposited cadmium plating per QQ-P-416 is specified, vacuum deposited cadmiumplating per MIL-C-8837, Type II, Class 2 may be substituted.
NOTE: Vacuum cadmium plating of all steel parts heat treated above 180,000 psi requiresGulfstream Technical Operations review and approval.
When vacuum cadmium plating is utilized, parts must pass a dry tape adhesion test usingfresh (less than 6 months old) 3M No. 254 tape. Parts failing this test shall be stripped andreprocessed to attain satisfactory adhesion.
C. Age Control of Elastomeric Material (Mandatory)
Age sensitive elastomeric materials must meet the requirements of MIL-STD-1523.
D. Surface Finish Requirements
Surface roughness of routed sheet metal edges (mandatory) - Unless otherwise specified on theengineering drawing, all routed sheet metal edges shall be finished to 125 RMS.
E. Nondestructive Tests
Nondestructive Test (NDT) inspection procedures (methodology and equipment).
NOTE: Refer to GIV NDT Manual for inspection procedures.
F. Hardness Testing of Metals
Procedure - Hardness tester verification (to be performed by qualified personnel).
– Testers with Rockwell or Brinell scales shall be verified by using the correct side of a standardtest block on each instrument at the beginning of each investigation. Each time a new scale isused, it shall also be verified by the specific test block.
– Conductivity meters shall be operated only by qualified individuals who are well conversed withaerospace NDT procedures. Instrument calibration verification via standards attached to eachmeter shall constitute proper preliminary equipment testing.
Operation - Testers with Rockwell, Brinell and Barcol Scales:
NOTE: Surface finish is essential for obtaining accurate readings against the parts in question. Theprepared surface should not exceed (RMS) ME4V SQ 125 and or 125 micro inches orbetter.
– Valid hardness readings require proper combination of load and penetration, correct anvil and asmooth, flat, properly prepared surface normal to the axis of the indenter. See Figure 1 andFigure 2.
– Reading shall be taken in areas where indentations cannot later contribute to failure. Only
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material that will not be destroyed or mutilated beyond serviceability shall be tested by thismethod.
– Limit the number of indentations to the minimum necessary for accurate determination.– When testing curved surfaces correction factors must be added.– When a part cross section is relatively constant, hardness may be determined by a single
reading.– When part cross section changes significantly or when a narrow hardness range is required,
three readings are taken and averaged.– When three Rockwell readings are taken, they must be within two hardness points of each
other.– When three Brinell readings are taken, they must be within 20 hardness points of each other.– When evidence of a hardness indentation in contact with an anvil is observed on the reverse
side of the part, the hardness reading is not valid.– When decarburization or other surface condition is suspected of causing erroneous readings,
the surface condition can be removed provided the part tolerance is not exceeded.
Valid conductivity readings require a smooth, flat surface normal to the axis of the probe.
Requirements
– Table 3 establishes Rockwell correction factors which are added when testing convexcylindrically curved surfaces.
– Table 4 established minimum material thickness for each Rockwell hardness scale.– Table 5 establishes approximate equivalent Rockwell hardness values for steel.– Table 6 establishes approximate equivalent Rockwell hardness values for wrought aluminum.– Table 7 establishes Rockwell and Brinell hardness values for the following:
Wrought carbon steels (1015, 1018, 1020, 1025, 1065, 1095, drill rod and hi-carbon musicwire).Wrought low alloy steels (3312, 4130, 4140, 4330 Va. Modified, 4340, 6150, 8740, D6 AC,Graph-Mo, H-11 and hy-tuff).Wrought Martensitic stainless steels (410, 416, 420, 431 and 40-G).
– Table 8 establishes hardness to tensile strength values for wrought carbon and low alloy steels.– Table 9 establishes hardness requirements for wrought aluminum alloys.– Table 10 establishes electrical conductivity requirements for wrought aluminum alloys.– Table 11 establishes hardness requirements for aluminum alloy and magnesium alloy castings.– Table 12 establishes hardness requirements for wrought precipitation hardening, corrosion and
heat resistant alloys.– Table 13 establishes hardness requirements for copper alloys.– Table 14 establishes hardness requirements for titanium alloys.– Other approved type hardness testers may be used in accordance with the manufacturer’s
data.
Laboratory tensile testing - When the hardness check is carried out on a fire damaged structure andis inconclusive, a section of the damaged structure must be cut out and tensile tested to determinethe serviceability of the remaining part of the structure. When sending parts or samples to thelaboratory for analysis, include a descriptive report about the type and duration of the fire.
NOTE: Gulfstream Technical Operations review and approval required.
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Table 3: Rockwell Hardness Scale
ROCKWELL CORRECTION FACTORS ADDED FOR CYLINDRICALLY CURVED SURFACES (1)
Diameter Of Specimen Or Part (Inches)
Scale ObservedReading 1/4 3/8 1/2 5/8 3/4 7/8 1.0
EFG
100 3.3 2.5 1.3 1.5 1.0 1.0 0.5
90 4.0 3.0 2.0 1.5 1.5 1.5 1.0
80 5.0 3.5 2.5 2.0 1.5 1.5 1.5
70 6.0 4.0 3.0 2.5 2.0 2.0 1.5
60 7.0 5.0 3.5 3.0 2.5 2.0 2.0
50 8.0 5.5 4.0 3.5 3.0 2.5 2.0
40 9.0 6.0 4.5 4.0 3.0 2.5 2.5
30 10.0 6.5 5.0 4.5 3.5 3.0 2.5
20 11.0 7.5 5.5 4.5 4.0 3.5 3.0
10 12.0 8.0 6.0 5.0 4.0 3.5 3.0
0 12.5 8.5 6.5 5.5 4.5 3.5 3.0
ACD
80 0.5 0.5 0.5 0 0 0 0
70 1.0 1.0 0.5 0.5 0.5 0 0
60 1.5 1.0 1.0 0.5 0.5 0.5 0.5
50 2.5 2.0 1.5 1.0 1.0 0.5 0.5
40 3.5 2.5 2.0 1.5 1.0 1.0 1.0
30 5.0 3.5 2.5 2.0 1.5 1.5 1.0
20 6.0 4.5 3.5 2.5 2.0 1.5 1.5
Scale ObservedReading 1/8 1/4 3/8 1/2 5/8 3/4 1.0
15N30N45N
90 0.5 0.5 0 0 0 0 0
85 0.5 0.5 0.5 0 0 0 0
80 1.0 0.5 0.5 0.5 0 0 0
75 1.5 1.0 0.5 0.5 0.5 0.5 0
70 2.0 1.0 1.0 0.5 0.5 0.5 0.5
65 2.5 1.5 1.0 0.5 0.5 0.5 0.5
60 3.0 1.5 1.0 1.0 0.5 0.5 0.5
55 3.5 2.0 1.5 1.0 1.0 0.5 0.5
50 3.5 2.0 1.5 1.0 1.0 1.0 0.5
45 4.0 2.5 2.0 1.0 1.0 1.0 1.0
40 4.5 3.0 2.0 1.5 1.0 1.0 1.0
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ROCKWELL CORRECTION FACTORS ADDED FOR CYLINDRICALLY CURVED SURFACES (1)
Diameter Of Specimen Or Part (Inches)
15T30T45T
90 1.5 1.0 1.0 0.5 0.5 0.5 0.5
80 3.0 2.0 1.5 0.5 1.0 1.0 0.5
70 5.0 3.5 2.5 2.0 1.5 1.0 1.0
60 6.5 4.5 3.0 2.5 2.0 1.5 1.5
50 8.5 5.5 4.0 3.0 2.5 2.0 1.5
40 10.0 6.5 4.5 3.5 3.0 2.5 2.0
30 11.5 7.5 5.0 4.0 3.5 2.5 2.0
20 13.0 9.0 6.0 4.5 3.5 3.0 2.0
(1) Per Wilson (Rockwell) Chart No. 55.
Table 4: Minimum Material Thickness for Each Hardness Scale
THICKNESS SCALE
Inches 15M 30M 45M A B C
0.006 92 — — — — —
0.005 90 — — — — —
0.010 88 — — — — —
0.012 83 82 77 — — —
0.014 76 80 74 — — —
0.016 68 74 72 86 — —
0.018 X 66 68 84 — —
0.020 X 57 63 82 77 —
0.022 X 47 58 78 75 69
0.024 X X 51 76 72 67
0.026 X X 37 71 68 65
0.028 X X 20 67 63 62
0.030 X X X 60 58 57
0.032 X X X X 51 52
0.034 X X X X 43 45
0.036 X X X X X 37
0.038 X X X X X 28
0.040 X X X X X 20
INCHES 15T 30T 45T F B C
0.005 93 — — — — —
0.010 90 87 — — — —
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THICKNESS SCALE
0.015 78 77 77 — — —
0.020 X 58 62 100 — —
0.025 X X 26 92 92 90
0.030 X X X 67 68 69
0.035 X X X X 44 46
0.040 X X X X 20 22
NOTE: X signifies no minimum hardness.
This table per Wilson (Rockwell) chart No. 55.
Table 5: Hardness Testing (Steel)
ROCKWELL HARDNESS ROCKWELL SUPERFICIAL BRINELL HARDNESS TENSILESTRENGTH
APPROXX 10`PSI
C150 KgBrale
A60 KgBrale
15-N15 Kg
NBrale
30-N30 Kg
NBrale
45-N45 Kg
NBrale
3000 KgBrinell
Hultgren 10 MMBall
68 85.5 — 84.5 75.5
67 85.0 93.0 83.5 74.5
66 84.5 92.5 83.0 73.0
65 84.0 92.0 82.0 72.0
64 83.5 — 81.0 71.0
63 83.0 91.5 80.0 70.0
62 82.5 91.0 79.0 69.0
61 81.5 90.5 78.5 67.5
60 81.0 90.0 77.5 66.5 614
59 80.5 89.5 76.5 65.5 600
58 80.0 — 75.5 64.0 587
57 79.5 89.0 75.0 63.0 573
56 79.0 88.5 74.0 62.0 560
55 78.5 88.0 73.0 61.0 547 301
54 78.0 87.5 72.0 59.5 534 291
53 77.5 87.0 71.0 58.5 522 282
52 77.0 86.5 70.5 57.5 509 273
51 76.5 86.0 69.5 56.0 496 264
50 76.0 85.5 68.5 55.0 484 255
49 75.5 85.0 67.5 54.0 472 246
48 74.5 84.5 66.5 52.5 460 237
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ROCKWELL HARDNESS ROCKWELL SUPERFICIAL BRINELL HARDNESS TENSILESTRENGTH
APPROXX 10`PSI
C150 KgBrale
A60 KgBrale
15-N15 Kg
NBrale
30-N30 Kg
NBrale
45-N45 Kg
NBrale
3000 KgBrinell
Hultgren 10 MMBall
47 74.0 84.0 66.0 51.5 448 229
46 73.5 83.5 65.0 50.0 437 221
45 73.0 83.0 64.0 49.0 426 214
44 72.5 82.5 63.0 48.0 415 207
43 72.0 82.0 62.0 46.5 404 200
42 71.5 81.5 61.5 45.5 393 194
41 71.0 81.0 60.5 44.5 382 188
40 70.5 80.5 59.5 43.0 372 182
39 70.0 80.0 58.5 42.0 362 177
38 69.5 79.5 57.5 41.0 352 171
37 69.0 79.0 56.5 39.5 342 166
36 68.5 78.5 56.0 38.5 332 162
35 65.0 78.0 55.0 37.0 322 157
34 67.5 77.0 54.0 36.0 313 153
33 67.0 76.0 53.0 35.0 305 148
32 66.5 76.0 52.0 33.5 297 144
31 66.0 75.5 51.5 32.5 290 140
30 65.5 75.0 50.5 31.5 283 136
29 63.0 74.5 49.5 30.0 276 132
28 64.5 74.0 43.5 29.0 270 129
27 64.0 73.5 47.5 28.0 265 126
26 63.5 72.5 47.0 26.5 260 123
25 63.0 72.0 46.0 25.5 255 120
24 62.5 71.5 45.0 24.0 250 117
23 62.0 71.0 44.0 23.0 245 115
22 61.5 70.5 43.0 22.0 240 112
21 61.0 70.0 42.5 20.5 235 110
20 60.5 69.5 41.5 19.5 230 108
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Table 6: Hardness Testing (Aluminum)
ROCKWELL HARDNESS ROCKWELL SUPERFICIAL BRINELL HARDNESS
BARCOLREADING (1)
TENSILESTRENGTH
APPROXX 10`PSI
B100 Kg
1/16 InchBall
A60 KgBrale
15-T15 Kg
1/16 InchBall
30-T30 Kg
1/16 InchBall
45-T45 Kg
1/16 InchBall
500 Kg10 MM
Ball
3000 KgD.P.H10 Kg
100 61.5 93.0 82.0 72.0 201 240 116
99 61.0 92.5 81.5 71.5 195 234 112
98 60.0 — 81.0 70.0 189 228 109
97 59.5 92.0 80.5 69.0 184 222 106
96 59.0 — 80.0 68.0 179 216 103
95 58.0 91.5 79.0 67.0 175 210 101
94 57.5 — 78.5 66.0 171 205 98
93 57.0 91.0 78.0 65.5 167 200 96
92 56.5 90.5 77.5 64.5 163 195 93
91 56.0 — 77.0 63.5 160 190 91
90 55.5 90.0 76.0 62.5 157 185 89
89 55.0 89.5 75.5 61.5 154 180 87
88 54.0 — 75.0 60.5 151 176 85
87 53.5 89.0 74.5 59.5 148 172 83
86 53.0 88.5 74.0 58.5 145 169 81
85 52.5 — 73.5 58.0 142 165 80
84 52.0 88.0 73.0 57.0 140 162 78
83 51.0 87.5 72.0 56.0 137 159 77
82 50.5 — 71.5 55.0 135 156 75
81 50.0 87.0 71.0 54.0 133 153 74
80 49.5 86.5 70.0 53.0 130 150 72
79 49.0 — 69.5 52.0 128 147
78 48.5 86.0 69.0 51.0 126 144
77 48.0 85.5 68.0 50.0 124 141
76 47.0 — 67.5 49.0 122 139
75 46.5 85.0 67.0 48.5 120 137
74 46.0 — 66.0 47.5 118 135
73 45.5 84.5 65.5 46.5 116 132
72 45.0 84.0 65.0 45.5 114 130
71 44.5 — 64.0 44.5 112 127
70 44.0 83.5 63.5 43.5 110 125
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ROCKWELL HARDNESS ROCKWELL SUPERFICIAL BRINELL HARDNESS
BARCOLREADING (1)
TENSILESTRENGTH
APPROXX 10`PSI
B100 Kg
1/16 InchBall
A60 KgBrale
15-T15 Kg
1/16 InchBall
30-T30 Kg
1/16 InchBall
45-T45 Kg
1/16 InchBall
500 Kg10 MM
Ball
3000 KgD.P.H10 Kg
69 43.5 83.0 62.5 42.5 109 123 89.0
68 43.0 — 62.0 41.5 107 121
67 42.5 82.5 61.5 40.5 106 119
66 42.0 82.0 60.5 39.5 104 117
65 — — 60.0 38.5 102 116 87.0
64 41.5 81.5 59.5 37.5 101 114
63 41.0 81.0 58.5 36.5 99 112
62 40.5 — 58.0 35.5 98 110 85.0
61 40.0 80.5 57.0 34.5 96 108
60 39.5 — 56.5 33.5 95 107 83.5
59 39.0 80.0 56.0 32.0 94 106
58 39.5 79.5 55.0 31.0 92 104 82.0
57 38.0 — 54.5 30.0 91 103
56 — 79.0 54.0 29.0 90 101
55 37.5 78.5 53.0 28.0 89 100
54 37.0 — 52.5 27.0 87 80.0
53 36.5 78.0 51.5 26.0 86
52 36.0 77.5 51.0 25.0 85 79.0
51 35.5 — 50.5 24.0 84
50 35.0 77.0 49.5 23.0 83
49 — 76.5 49.0 22.0 82 77.5
48 34.5 — 48.5 20.5 81
47 34.0 76.0 47.5 19.5 80
46 33.5 75.5 47.0 18.5 —
45 33.0 — 46.5 17.5 79
44 32.5 75.0 45.5 16.5 78 76.0
43 32.0 74.5 45.0 15.5 77
42 31.5 — 44.0 14.5 76
41 31.0 74.0 43.5 13.5 75 75.0
40 — 73.5 43.0 12.5 —
39 30.5 — 42.0 11.0 74
38 30.0 73.0 41.5 10.0 73
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ROCKWELL HARDNESS ROCKWELL SUPERFICIAL BRINELL HARDNESS
BARCOLREADING (1)
TENSILESTRENGTH
APPROXX 10`PSI
B100 Kg
1/16 InchBall
A60 KgBrale
15-T15 Kg
1/16 InchBall
30-T30 Kg
1/16 InchBall
45-T45 Kg
1/16 InchBall
500 Kg10 MM
Ball
3000 KgD.P.H10 Kg
37 29.5 72.5 40.5 9.0 72
36 29.0 — 40.5 8.0 — 73.5
35 28.5 72.0 39.5 7.0 71
34 28.0 71.5 38.5 6.0 70 73.0
33 — — 38.0 5.0 69
32 27.5 71.0 37.5 4.0 —
31 27.0 — 36.5 3.0 68 72.5
30 26.5 70.5 36.0 2.0 67
29 26.0 70.0 35.5 1.0 —
28 25.5 — 34.5 66 72.0
27 25.0 69.5 34.0 —
26 24.5 69.0 33.0 65
25 — — 32.5 64 71.0
24 24.0 68.5 32.0 —
23 23.5 68.0 31.0 63
22 23.0 — 30.5 — 70.0
21 22.5 67.5 29.5 62
20 22.0 — 29.0 —
19 21.5 67.0 28.5 61 69.5
18 — 66.5 27.5 —
17 21.0 — 27.0 60 68.5
16 20.5 66.0 26.0 —
15 20.0 65.5 25.5 59
14 — 25.0 — 67.5
13 65.0 24.0 58
12 64.5 23.5 —
11 — 23.0 — 66.5
10 64.0 22.0 57
9 — 21.5 —
8 63.5 20.5 — 66.0
7 63.0 20.0 56
6 — 19.5 —
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ROCKWELL HARDNESS ROCKWELL SUPERFICIAL BRINELL HARDNESS
BARCOLREADING (1)
TENSILESTRENGTH
APPROXX 10`PSI
B100 Kg
1/16 InchBall
A60 KgBrale
15-T15 Kg
1/16 InchBall
30-T30 Kg
1/16 InchBall
45-T45 Kg
1/16 InchBall
500 Kg10 MM
Ball
3000 KgD.P.H10 Kg
5 62.5 18.5 55 65.5
4 62.0 18.0 —
3 — 17.0 — 65.0
2 61.5 16.5 54
1 61.0 16.0 —
0 — 15.0 53 64.0
(1) The barcol readings are based upon the engineering data chart established by Barber-Colman Company, GYZJ 934-1.
Table 7: Wrought / Low Alloy Steel Hardness Values
ALLOY SPEC FORM COND STANDARD SUPERFICIAL BRINELL
Low carbonsteel QQ-W-461 Safety wire Annealed B92 max
Spring steel(1060) QQ-W-428 Spring wire
Annealed B93
Spring temper C40 - 45 30N 59.5 - 64
High carbonspring steel QQ-A-470 Spring wire Spring temper
Carbon steel1010 - 10361112 - 1137
CommercialQQS-S-633 Bar (rod) Hot rolled
Cold finished C21 max 30N 42.3 max
1035 QQ-S-631 Bar (rod)Hot rolled 241
Cold finished 221
1070 Commercial Bar (rod) Annealed C21 max 30N 42.3 max
1095 MIL-S-8559 Bar (rod)Spherodizeanneal, cold
finishedB95 max 229 max
Carbon steel1010 - 1018 Commercial Sheet
Soft temper B60 max
Full hard temper B84 - 96
1095 MIL-S-7947 Sheet (strip)Spherodizedannealed, hot
rolledB85 max
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ALLOY SPEC FORM COND STANDARD SUPERFICIAL BRINELL
4130
MIL-S-6758 Bar (rod) forgings Annealed C21 max
MIL-18727 Sheet (plate)
Normalized<0.187 B93 min
Normalized 0.188- 1.5B91 min
Annealed B88 max
MIL-T-6736 Tubing
Normalized<0.187 wall B93 min
Normalized>0.187 wall B91 min
AMS 6371 TubingHot finished B99 max
Cold finished C25 max
4135 MIL-T-6735 Tubing
Normalized<0.187 wall B96 min
Normalized>0.187 wall
4140 MIL-S-5626 Bar (rod) forgings
Normalized 311 max
Annealed C21 max 229 max
Cold finished C23 max 241 max
4330 Mod AMS 6427
Bar (rod) forgings
Hot finish bar 241 max
Annealed forging 241 max
Cold finish bar 248 max
NormalizedT-forgings 248 max
TubingHot finish B99 max
Cold finish C25 max
4340
MIL-S-5000 Bar (rod) forgings
Annealed C22 max 235
Cold finished C27 max 265
Normalized(Tempered) C27
AMS 6414 Bar (rod) forgings(VAC Melt)
Hot finished 229 max
Cold finished 245 max
AMS 6359 Sheet (plate)Sheet B98 max
Hot finished plate C25 max
AMS 6415 Tubing (mech)Hot finished C22 max
Cold finished C30 max
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ALLOY SPEC FORM COND STANDARD SUPERFICIAL BRINELL
301 MIL-S-5059
Sheet (strip)
Annealed B95 max
1/4 Hard C20 -31
1/2 Hard C28 - 36
plate3/4 Hard C33 -45
Hard C38 min
302
QQ-W-423Wire Spring temper B88 min
Other products
Annealed B95 max
MIL-S-50501/4 Hard C25 - 35
1/2 Hard C32 - 40
QQ-S-7633/4 Hard C37 - 42
Hard C40 - min
303QQ-S-763
All productsAnnealed B95 max
QQ-S-764 1/4 Hard C25-35
304QQ-S-763
All products Annealed B95 maxQQ-S-764
305 QQ-S-763 Bar (rod) Annealed C27 max
310
QQ-S-763 Bar (rod) Annealed B90 max
AMS 5521 Sheet strip (plate) Solution H.T. B90 max
AMS 5368 Casting As Cast —
316
MIL-S-5059 Sheet strip (plate)
Annealed B95 max 30 T78 max 217 max
1/4 Hard C25 - 35 — 255 max
1/2 Hard C32 - 40 372 max
QQ-W-423 Wire Spring temper B88 min
QQ-S-763 Bar (rod)Annealed C25 max
Cold Work B88 min
321
MIL-S-6721 Sheet strip (plate)Annealed B95 max
1/4 Hard C25
QQ-S-763 Bar (rod)Cold Work B88 min
Annealed C25 max
QQ-W-423 Wire Spring temper B88 min
MIL-S-867 Casting Annealed B87 max 170 max
347
QQ-S-763 Bar (rod) Annealed C25 max 30 N 46 max 241 max
MIL-S-6721 Sheet strip (plate) Annealed B95 max 30 T79 max 210 max
MIL-S-8844 Casting Annealed B83 max 160 max
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ALLOY SPEC FORM COND STANDARD SUPERFICIAL BRINELL
4340 MIL-S-8844 Bar Tubing(mechanical)
Hot finishedBar / Annealed C27 max 265 max
Annealed Tube B99 max
NormalizedTempered C33 max 311 max
300 M AMS 6417Bar forgings
Tubing(Mechanical)
Hot finished Bars 241 max
Cold finishedBars 262 max
Normalized /Tempered 248 max
Hot finished Tube B99 max
Cold finishedTube B25 max
8615 - 8630 MIL-S-8690 Bar (rod)forgings Annealed C21 max 229 max
8735 MIL-S-6098 Bar (rod)Annealed C21 max 229 max
Cold finished C23 max 241 max
8740MIL-S-6049
Bar (rod)Annealed C21 max 229 max
AMS 6322 Cold finished C23 max 241 max
9310 AMS 6260Bar (rod)Tubing
(Mechanical)
Hot finished Bars 229 max
Cold finishedBars 248 max
Hot finishedTubing B99 max
Cold finishedTubing C25 max
52100 MIL-S-7420 BarNot finished B94.5 max 207 max
Cold finished C24 max 248 max
H-11 AMS 6487 Bar forgings
Hot finished Bars 235 max
Cold finishedBars 255 max
Normalized /Temperedforgings
248 max
Table 8: Hardness to Tensile Strength Values for Wrought Carbon and Low Alloy Steels
HEAT TREAT COND OR TENSILESTRENGTH RANGE ROCKWELL SCALE BRINELL
PSI B C Diameter OfImpression
HardnessNumber
Annealed 78 — 5.03 141
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HEAT TREAT COND OR TENSILESTRENGTH RANGE ROCKWELL SCALE BRINELL
PSI B C Diameter OfImpression
HardnessNumber
Annealed 90 — 4.47 181
Normalized 90 — 4.45 183
120 / 150 KSI — 27 - 32 3.73 - 3.50 265 - 302
150 / 165 KSI — 33 - 37 3.45 - 3.23 311 - 345
165 / 180 KSI — 37 - 40 3.28 - 3.16 345 - 373
180 / 200 KSI — 39 - 42 3.20 - 3.09 363 - 391
200 / 220 KSI — 43 - 46 3.05 - 2.94 401 - 432
220 / 240 KSI — 46 - 49 2.94 - 2.84 432 - 464
240 / 260 KSI — 49 - 52 — —
260 / 280 KSI — 50 - 53 — —
280 / 305 KSI — 53 - 56 — —
Table 9: Hardness Requirements for Wrought Aluminum Alloys
ALLOY ANDTEMPER (1)
ROCKWELL HARDNESS SCALE
B E H 15T 30T
2024 / 2124-0 — 73 max 95 max — 34 max
-T3 and T4 69 - 83 97 - 106 111 - 118 87 - 93 62 - 72
-T36 76 - 90 100 - 110 — 85 - 90 —
-T6 73 - 84 98 - 106 — 83 - 88 62 - 68
-T81 75 - 84 99 - 106 — 84 - 88 —
-T84 81 min — — 86 min 71 min
-T86 83 - 90 105 - 110 — 87 - 90 —
-T351 69 min 97 min — 83 min 62 min
-T851 76 min 100 min — 85 min 67 min
O Clad — — 90 max — —
-T3 and T4 Clad 52 - 71 91 - 102 109 - 116 — —
-T81 Clad 60 min — — — —
2219-0 — 73 max 95 max — 34 max
-T31 58 - 72 — — 80 - 84 56 - 65
-T351 and T352 50 - 75 — — — 49 - 67
-T62 59 min 93 min — 80 min 56 min
-T81 68 - 85 — — 82 - 88 62 - 73
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ALLOY ANDTEMPER (1)
ROCKWELL HARDNESS SCALE
B E H 15T 30T
-T851 and T852 70 - 86 — — — 63 - 74
-T87 71 min — — 83.5 min 64 min
5052-0 — 65 max 92 max 66 max —
-H32 — 61 - 81 — 63 - 74 —
-H34 — 67 - 84 — 65 - 75 —
-H36 — 73 - 87 — 70 - 77 —
-H38 — 80 - 90 — 75 - 79 —
6160-0 — — 75 max — —
-T4 Sheet — 60 - 85 88 - 100 64 - 75 —
-T4 Extrusion — 70 - 85 82 - 103 67 - 78 —
-T6 XX 47 min 85 - 97 — 78 - 84 —
-T6 Clad — 84 - 96 — — —
6063-T5 — 55 - 70 89 - 97 63 - 70 —
-T6 — 70 - 85 — — —
7075-0 Bare andClad — 73 max 95 max — 34 max (Bare)
-T6 and T65X 85 - 94 106 - 114 — 87 - 92 —
-T6 Clad 73 - 88 102 - 110 — — —
-T73XXX 78 - 89 102 - 108 — 86 min 69 min
7079-T6 and T65 X 81 - 93 104 - 114 — 87 - 92 —
7175-T736 85 - 94 106 -114 — 87 - 92 —
7178-T6 85 min 105 min — 88 min —
-T6 Clad 82 min 102 min — — —
-T76 and T765XXX 84 min — — — 73 min
7050-T73XXX 81 - 94 104 - 114 — — 71 - 79
-T76XX 81 - 94 104 - 114 — — 71 - 79
7049-T73 81 - 93 104 - 114 — — 71 - 79
1100-0 — — 50 max — —
-H12 — — 46 min — —
-H14 — — 65 min — —
-H16 — — 67 min — —
-H18 — — 74 min — —
3003-0 — — 65 max — —
-H12 — — 68 min — —
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ALLOY ANDTEMPER (1)
ROCKWELL HARDNESS SCALE
B E H 15T 30T
-H14 — — 80 - 90 — —
-H16 — — 88 - 95 62 - 68 —
-H18 — 66 - 75 — 66 - 73 —
2014-0 (Bare andClad) — — 95 max —
-T3 and T4 65 - 70 95 - 100 — — 60 min
T6 and T65X 78 - 90 102 - 110 — 86 - 90 69 - 76
T6 Clad 74 - 82 101 - 106 — — —
(1) For alloys and tempers not listed, contact Gulfstream Technical Operations.
Table 10: Electrical Conductivity Requirements for Wrought Aluminum Alloys
ALLOY AND TEMPERCONDUCTIVITY VALUES
Typical (% IACS) Range (% IACS)
1100 - All 59 57.0 - 61.8
3003-0 50 44.7 - 50.0
-H12, H14, H16, H18 41 37.8 - 51.8
2014-0 50 48.6 - 51.0
-T3, T4 34 32.5 - 35.0
-T6 40 35.0 - 41.5
2024 / 2124-0 50 46.0 - 50.0
-T3XX 30 28.6 - 35.0
-T4 30 27.5 - 31.0
-T36 30 29.1 - 31.0
-T6XX 38 35.0 - 39.0
-T81 38 35.5 - 40.0
-T851 (Up To 3.999) 39 37.0 - 42.5
-T851 (4 Inches and Up) 39 37.0 - 41.5
2219 - 0 44 40 - 46 (1)
-T31, T35, T37 28 26 - 34 (1)
-T6, T62, T81, T87 30 28 - 35 (1)
5052 (All) 35 33.6 - 37.6
6061-0 52 42.0 - 52.0
-T4 41 35.0 - 44.0
-T6 45 41.0 - 52.0
6063-T5 55 50.0 - 60.0
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ALLOY AND TEMPERCONDUCTIVITY VALUES
Typical (% IACS) Range (% IACS)
-T6 53 50.0 - 60.0
7075-0 — 44.5 - 47.8
-W — 28.5 - 30.5
-T6, T651 33 30.0 - 33.5
-T73XXX 40 38.0 - 41.0
7079-T6 32 30.0 - 35.0
7175-T736 40 38.0 min
7178-T6 31 26.8 - 32.6
-T76, T765XX 38 36.5 min
7050-T73XXX 40 40.0 min
-T7651 39 39.0 min
7049-T73XX 40 38.0 min
(1) Range additions to be made to the specification, derived from MDAC specifications and QQ-A-250/30.
Table 11: Hardness Requirements for Aluminum and Magnesium Alloy Castings
ALUMINUM AND MAGNESIUM ALLOY CASTINGS (1)
Alloy And Temper Rockwell Hardness Minimum
Aluminum Alloys E Scale
43FSand 30
Permanent mold 33
195-T4Sand 73
Permanent mold 77
195-T6Sand 77
Permanent mold 88
220-T4 Sand 77
355-T6Sand 80
Permanent mold 88
356-T6Sand 73
Permanent mold 80
142-T571 Sand 85
142-T77 Sand 78
142-T571 Permanent mold 95
142-T61 Permanent mold 97
122-T61 Sand 100
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ALUMINUM AND MAGNESIUM ALLOY CASTINGS (1)
Alloy And Temper Rockwell Hardness Minimum
108F Sand 56
113F Sand 73
40E-T5 Sand 77
319-F Sand 73
A356-T6Sand 72
Permanent mold 80
A380 Die casting 82
380 Die casting 81
218 Die casting 80
85 Die casting 78
85X Die casting 75
A360 Die casting 78
360 Die casting 78
Magnesium Alloys E Scale
A10-HAT 72
ZK60A-EA (T5) 84
AZ63-HTA 70
AZ91-HTA 67
AZ80A-F 80
AN-M-36-HTA 72
(1) For alloys and tempers not listed, contact Gulfstream Technical Operations.
Table 12: Precipitation Hardened, Corrosion and Heat Resistant Alloys
ALLOY SPEC FORM COND STANDARD SUPERFICIAL BRINELL
410
QQ-S-763 Forgings Annealed B93 max 202 max
QQ-S-766 Sheet (strip) plateAnnealed B94 max
Cold work B88 min
416 QQ-S-764 Forgings Annealed B93 max 202 max
431 QQ-S-704 Forgings Annealed C29 max 277 max
440C QQ-S-763 Bar (rod)Hot finished B87 max 269 max
Cold finished 285 max
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ALLOY SPEC FORM COND STANDARD SUPERFICIAL BRINELL
A286
AMS 5737 Bar (rod)Forgings (tubing)
Solution H.T. — — —
STA-1325 age C30 30N45 - 55 248 - 341
AMS 5525 Sheet (plate)Solution H.T. B90 max
STA-1325 age C30 min 30N45 - 55 248 - 341
AM350MIL-S-8840
AllSCT-850 C40 - 47 15N80 - 83.5
AMS-5547 SCT-1050 C36 - 42 15N78 - 81
PH13-8MO AMS 5629 Bar (rod) forgings
Solution 363 max
H950 C45 - 48
H1000 C43 - 47
PH14-8MO AMS 5603 All
CH900 C50 min 15N85 min
SRH950 C46 - 51 15N83 - 85.5
SRH1050 C40 - 46 15N80 - 83
PH15-7MO AMS 5520 Sheet (strip) plate
Annealed B100 max
H900 C40 - 47 30N59.5 - 65.8
TH1050 C41 - 46
TH1100 C42 - 47
15-5PH AMS5659 Forgings
Solution 363 max
H900 C40 - 45 388 - 438
H1025 C35 - 39
17-7PH
AMS 5673 Wire Spring temper — — —
MIL-S-25043 Sheet (strip) plateBar (rod)
Annealed B92 max
TH1050 C39 - 44
TH1100 C34 - 40
AMS Wire CH900 C46 min 15N83 min
17-4PH AMS 5643 Bar (rod)Forgings
Solution annealed C39 max 363 max
H900 C41 - 46 375 - 462
H925 C38 - 45
H1025 C35 - 41
H1075 C32 - 37
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ALLOY SPEC FORM COND STANDARD SUPERFICIAL BRINELL
Inconel 600
QQ-W-390 WireRegular temper 15N70 min
Spring temper 15N75 min
MIL-N-6710 Bar (rod)
Annealed B86 max 30T74 max 120 - 170
Cold drawn B90 max 30T75.5 max 180 - 290
Hot rolled B62 min 30T58 min 110 min
MIL-N-6840 Forging Hot finishedannealed 140 - 210
MIL-N-6840 Sheet strip (plate)Annealed B80 max 30T70 max 150 max
Spring temper B65 - 68
MIL-T-7840 Tubing Cold annealed B65 - 88 120 - 180
Inconel 625AMS 5666 Bar (rod) Annealed B95 min
AMS 5599 Sheet Annealed B95 min
Inconel 718MMS 163 Bar (rod) forgings Annealed, aged C39 min 30N58.6 min
MMS 164 Sheet(strip) plate Solution, aged C36 min
Inconel X750
AMS 5667 Bar (rod) forgings
Annealed B100 max
Aged 30N52 max 302 - 363
Stress equal. C32 max 302 max
MIL-N-7786 Sheet (strip)
Annealed B100 max
Aged C32 - 42 300 min
Solution C30 min
Monel 400
QQ-N-281
Bar (rod) Cold drawn C26 min 30N46 min 260 min
Sheet (strip) plate
Annealed B90
Hard stressrelieved B93 max
MIL-T-1368 Tubing
Annealed B90 max
Hard stressrelieved B96 min
Monel K500
All Annealed (aged) C24 min
Bar, forging Aged C27 min
Tubing Aged C30 min
Sheet1/2 hard (aged) C30 min
Full hard (aged) C34 min
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ALLOY SPEC FORM COND STANDARD SUPERFICIAL BRINELL
Rene’ 41 AMS 5712
Bar Solution 363 max
Sheet
Annealed -0.040 C35 min 15N754 max
Annealed -0.040to 0.070 A64 max
Annealed -0.070to 0.187 C30 max
Aged C35 min 30N55 min
Table 13: Hardness Requirements for Copper Alloy
ALLOY COND FORMROCKWELL HARDNESS SCALE
A B C E 15N 15T 30T
Copper Annealed
Sheet -0.019 — — — — — 68 max —
0.020 andover — — — 65 max — — —
Copper Annealed Bar — — — 50 max — — —
Beryllium -Copper Cond A Bar Over
0.124 — — 45 - 85 — — — —
Beryllium -Copper Cond H
Bar 0.125 -0.375 — 92 - 103 — — — — —
0.376 -1.000 — 91 - 102 — — — — —
Over 1.000 — 88 - 101 — — — — —
Beryllium -Copper Cond AT Bar Over
0.124 — — 34 - 40 — — — —
Beryllium -Copper Cond HT
Bar 0.124 -0.375 — — 39 - 45 — — — —
0.376 -1.000 — — 38 - 44 — — — —
Over 1.000 — — 37 - 43 — — — —
Beryllium -Copper Cond A
Sheet0.010 -0.030
— — — — — 78 - 86 —
0.031 -0.050 — — — — — — 46 - 69
0.051 -0.075 — — — 82 - 101 — — —
Over 0.075 — 45 - 79 — — — — —
Beryllium -Copper
Cond 1/4Hard
Sheet0.010 -0.031
— — — — — — 66 - 75
Over 0.031 — 74 - 90 — — — — —
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ALLOY COND FORMROCKWELL HARDNESS SCALE
A B C E 15N 15T 30T
Beryllium -Copper
Cond 1/2Hard
Sheet0.010 -0.020
— — — — — 88.5 - 91.5 —
0.021 -0.045 — — — — —
Over 0.045 — 89 - 96 — — — — —
Beryllium -Copper Cond H
Sheet0.010 -0.031
— — — — — — 80 - 83
Over 0.031 — 96 - 102 — — — — —
Beryllium -Copper Cond AT
Sheet0.010 -0.020
— — — — 77 min — —
0.021 -0.065 67 min — — — — — —
Over 0.065 — — 34 min — — —
Beryllium -Copper
Cond 1/4HT
Sheet0.010 -0.019
— — — — 78 min — —
0.020 -0.049 68 min — — — — — —
Over 0.049 — 36 min — — — —
Beryllium -Copper
Cond 1/2HT
Sheet0.010 -0.020
— — — — 80 min — —
0.021 -0.060 69 min — — — — — —
Over 0.060 — 38 min — — — —
Beryllium -Copper Cond HT
Sheet0.010 -0.019
— — — — 80 min — —
0.020 -0.049 70 min — — — — — —
Over 0.049 — — 39 min — — — —
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Table 14: Titanium Alloys
ALLOY FORM SPEC COND ROCKWELLHARDNESS
Unalloyed
Sheet and plate MIL-T-9046 T.I. C.C.
Annealed
B90 max
AMS4901, MIL-T-9046,T-1, C-B B100 max
Bar and rod AMS4921, MIL-T-9047,T-1, C-A B100 max
Forgings MIL-T-9047. C-1, MIL-F-83142, T-1 B100 max
T-1 5A1 - 2.5SN
Sheet and plate MIL-T-9046, T-11, C-A
Annealed
C36 max
Bar and rod AMS4926, MIL-T-9047,TII, CA —
Forgings AMS4966, MIL-T-9047,C-2, MIL-F-83142, T-2 —
T1-6A1-4V
Sheet and plate AMS4911, MIL-T-9046,T-III, C-C
Annealed
C36 max
Bar and rod AMS4928, MIL-T-9047,C-6 C39 max
Forgings AMS4928, MIL-T-9047,C-6, MIL-F-83142, T-3 C39 max
Extrusions AMS4935 C36 max
T1-6A1-6V-2SN
Sheet and plate MIL-T-9045, T-III, C-E
Annealed
C38 max
Bar and rod forgings MIL-T-9047, T-III, C-C,MIL-F-83142, T-3, C-8 C38 max
T1-8MN Sheet and plate MIL-T-9046, T-III, C-A Annealed C32 max
T1-8A1-1MO-IV Sheet and plate MMS-129, MIL-T-9046,T-II, C-F Annealed C38 max
NOTE: Hardness values do not provide a basis for verifying conformance to mechanical propertiesin applicable specifications or rejecting parts. Hardness values in excess of those indicatedmay be used to screen parts for material in STA condition or presence of alpha case.
The effect of heat on Titanium cannot be evaluated properly by hardness tests to evaluatethe properties of Titanium accurately, a metallurgical examination must be made. However,Titanium surfaces oxidize and change color with increasing heat and scale at hightemperatures. This characteristic can be used to assess the intensity of the heat imposedon the Titanium structure. Gulfstream Technical Operations review and approval required.
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Portable Hardness Tester - Barcol and ErnstFigure 1
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Portable Hardness Tester - RiehleFigure 2
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3. Original Finishes
Table 15: GIV Original Finishes
PART NAME PART SUBSTRATE
FINISHSUPPLEMENTAL
EXTERIOR FINISHINTERIOR(1)
EXTERIOR(2)
Fuselage
Radome Glass / EpoxyNomex Core None 92
95 (Ref AV-1159-TS360.0)(3)
Skins Aluminum 2012213 213 None
Gear well Aluminum88
2132012
2013 None
Aluminum bulkhead Aluminum 2012213 None 2012 as required by drwing
Flat pressure bulkhead Graphite / Epoxy None None None
Tail compartment Aluminum (only) 20122013 N/A N/A
Floor Panels
Forward floor panelsMetal bondedassembly
Aluminum N/A 2012 None
Composite Graphite / Epoxy N/A 2012 92
Aft floor panelsMetal bondedassembly
Aluminum N/A 2012 None
Composite Graphite / Epoxy N/A 2012 92
Wing Body Fairings
Forward fairings Graphite / Epoxy None None 92
Aft fairings Graphite / Epoxy None None 92
Skid plate (Skeg) Glass / Epoxy None 2012 None
Engine Cowling
Pylon fairing Graphite / Epoxy None None 92
Fixed cowl Graphite / Epoxy 2012 2012 92
Nose cowl Aluminum 2132012 Polished None
Aft cowl Aluminum 2132012
2132012 None
Cowl door - upper Graphite / Epoxy 2012 2012 92
Cowl door - lower Graphite / Epoxy 2012 2012 92
Wings
Leading Edge (LE) Aluminum None Polished None
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PART NAME PART SUBSTRATE
FINISHSUPPLEMENTAL
EXTERIOR FINISHINTERIOR(1)
EXTERIOR(2)
Upper planks Aluminum 88144
8820124012
None
Lower planks Aluminum 88144
8820124012
None
Center box Aluminum 88144
8820124012
None
Front beam Aluminum 88144
8820124012
None
Rear beam Aluminum 88144
8820124012
None
Integral tank Aluminum 88144
8820124012
None
Gear wells Aluminum
88 / 213 /2012
or4012 /2013
None
Trailing Edge (TE) Box- inboardMetal BondedAssembly
Aluminum 2132012
2132012 None
Composite Graphite / Epoxy None None 92(3)
TE Box - Outboard Graphite / Epoxy None None 92(3)
Lighting
Nav / strobe assembly Aluminum
88 / 213 /2012
or4012 /2013
88 / 213 /2012
or4012 / 2013
None
Landing light Aluminum
88 / 213 /2012
or4012 /2013
88 / 213 /2012
or4012 / 2013
None
Winglets
Main assembly Aluminum N/A 213(5) None
Winglet - LE Aluminum N/A Polished None
Aileron
Bonded metalassembly aluminum Aluminum N/A 213(5) None
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PART NAME PART SUBSTRATE
FINISHSUPPLEMENTAL
EXTERIOR FINISHINTERIOR(1)
EXTERIOR(2)
Graphite / epoxycomposite assembly Graphite / Epoxy N/A 92(5) (3)
Spoilers
Upper surfacebonded metalassembly
Aluminum N/A 213(5) None
Graphite / epoxycomposite assembly Graphite / Epoxy (4) N/A 92(5) (3)
Lower surfacebonded metalassembly
Aluminum N/A 213(5) None
Graphite / epoxycomposite assembly Graphite / Epoxy (4) N/A 92(5) (3)
Flaps
Metal assembly Aluminum 2132012 213(5) None
Graphite / epoxycomposite assembly Graphite / Epoxy (4) N/A N/A (3)
Empennage
Vertical fin Aluminum 2132012 213(5) None
Vertical fin LE Aluminum 2132012 Polished None
High Frequency (HF)antenna
Glass Epoxy w /Nomex Core None (5) None
Rudder Graphite / Epoxy N/A 92(5) (3)
Horizontal stabilizer Aluminum 2132012 213(5) None
Horizontal stabilizer LE Aluminum 2132012 Polished None
Horizontal stabilizerOH panelbonded metalassembly
Aluminum21320122013
213(5) None
Horizontal stabilizerOH panel Graphite / Epoxy (4) N/A N/A(5) None
Elevators Aluminum 2132012 213(5) None
Bullet assembly Glass / Epoxy None None (3)
Miscellaneous
Interior surfaces Ferrous alloy 2 N/A None
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PART NAME PART SUBSTRATE
FINISHSUPPLEMENTAL
EXTERIOR FINISHINTERIOR(1)
EXTERIOR(2)
Exterior surfaces Ferrous alloy N/A2
20122013
None
Elastomeric surfaces Noted None N/A None
Flight control ballast Tungsten None2
20122013
None
(1) All entries noting 2012 or 4012 primer are replaced by 2012, 4012 or 3012.(2) All entries noting 2013 are replaced by 2013 or 3013.(3) Environmental Protective Finish (EPF) for protection against ultra violet light, acid rain and bird damage.(4) Indicates graphite fiber with epoxy resin matrix.(5) 2012 and / or GAMPS 4000 Pratt & Lambert primer (usually). Topcoat (GAMPS 4000 Pratt & Lambert or
operator specified material.
NOTE: The following GAC codes pertain to Table 15.
• 2 - GAC code for Low Embrittlement Cadmium Plating per QQ-P-416 Type II, Class• 88 - GAC code for Anodize - Chromic Acid per MIL-A-8625, Type I, Class 1• 144 - GAC code for Corrosion Preventive Coating - Integral Fuel Tanks per MIL-C-27725• 213 - GAC code for Chromate Conversion Coating per MIL-C-5541, Class 3• 2012 - GAC code for Epoxy Primer - Skydrol Resistant, green - DeSoto 515X333 / 910X350• 2013 - GAC code for Epoxy, Fuel / Skydrol Resistant Topcoat, gloss white - DeSoto 521X315 / 190-
037 / 020-004• 4012 - GAC code for Epoxy Primer (Chlorinated Solvent), Skydrol Resistant (DeSoto 515X383 /
910X749 / 010 / 313) - Product Discontinued as of 1994• 3012 - GAC code for Epoxy Primer, Water Reducible, Low VOC, Di-phosphate Ester Hydraulic Fluid
Resistant• 3013 - GAC code for Epoxy Topcoat, High Solids, Di-phosphate Ester Hydraulic Fluid Resistant
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