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Ring Joints - DimensionsMaterial Designation

MaximumHardness

Rockwell BMaximumHardness

BrinellSoft Iron D 56 90

Low Carbon Steel S 68 1204-6 Chrome F-5* 72 130

304 Stainless Steel S304 83 160316 Stainless Steel S316 83 160347 Stainless Steel S347 83 160410 Stainless Steel S410 86 170

Size Designations for Oval or Octagonal RingsNominalPipe Size Flange Pressure Rating

150# 300-600# 900# 1500# 2500#1/2 - R-11 R-12 R-12 R-133/4 - R-13 R-14 R-14 R-161 R-15 R-16 R-16 R-16 R-18

1-1/4 R-17 R-18 R-18 R-18 R-211-1/2 R-19 R-20 R-20 R-20 R-23

2 R-22 R-23 R-24 R-24 R-262-1/2 R-25 R-26 R-27 R-27 R-28

3 R-29 R-31 R-31 R-35 R-323-1/2 R-33 R-34 R-34 - -

4 R-36 R-37 R-37 R-39 R-385 R-40 R-41 R-41 R-44 R-426 R-43 R-45 R-45 R-46 R-478 R-48 R-49 R-49 R-50 R-51

10 R-52 R-53 R-53 R-54 R-5512 R-56 R-57 R-57 R-58 R-6014 R-59 R-61 R-62 R-63 -16 R-64 R-65 R-66 R-67 -18 R-68 R-69 R-70 R-71 -20 R-72 R73 R-74 R-75 -22 R-80 R-81 - - -24 R-76 R-77 R-78 R-79 -26 - R-93 R-100 -28 - R-94 R-101 -

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30 - R-95 R-102 -32 - R-96 R-103 -34 - R-97 R-104 -36 - R-98 R-105 -

* F5 identification designates ASTM Specification A-182 chemical composition requirements only.

Dimensions for Oval or Octagonal RingsA.S.A. and

A.P.I. RingNumberGasket Dimensions, Inches Gasket Weight lbs.

CenterTo

Center InsideDiameter OutsideDiameter Width ofRingHeight of Ring

OvalRings OctagonalRingsOval Octagonal

R11 1-11/32 1-3/32 1-19/32 1/4 7/16 3/8 0.111 0.104R12 1-9/16 1-1/4 1-7/8 5/16 9/16 1/2 0.216 0.2R13 1-11/16 1-3/8 2 5/16 9/16 1/2 0.234 0.216R14 1-3/4 1-7/16 2-1/16 5/16 9/16 1/2 0.242 0.224R15 1-7/8 1-9/16 2-3/16 5/16 9/16 1/2 0.26 0.24R16 2 1-11/16 2-5/16 5/16 9-16 1/2 0.278 0.256R17 2-1/4 1-15/16 2-9/16 5/16 9/16 1/2 0.311 0.288R18 2-3/8 2-1/16 2-11/16 5/16 9/16 1/2 0.328 0.304R19 2-9/19 2-1/4 2-7/8 5/16 9/16 1/2 0.354 0.328R20 2-11/16 2-3/8 3 5/16 9/16 1/2 0.372 0.344R21 2-27/32 2-13/32 3-9/32 7/16 1-1/16 5/8 0.66 0.643R22 3-1/4 2-15/16 3-9/16 5/16 9/16 1/2 0.45 0.415R23 3-1/4 2-13/16 3-11/16 7/16 1-1/16 5/8 0.755 0.734R24 3-3/4 3-5/16 4-3/16 7/16 1-1/16 5/8 0.87 0.846R25 4 3-11/16 4-5/16 7/16 9/16 1/2 0.553 0.51R26 4 3-9/16 4-7/16 7/16 1-1/16 5/8 0.93 0.904R27 4-1/4 3-13/16 4-11/16 7/16 1-1/16 5/8 1.05 0.96R28 4-3/8 3-7/8 4-7/8 1/2 3/4 1-1/16 1.255 1.23R29

4-1/2

4-3/16

4-13/16

5/16

9/16

1/2

0.622

0.575

R30 4-5/8 4-3/16 5-1/16 7/16 1-1/16 5/8 1.075 1.047R31 4-7/8 4-7/16 5-5/16 7/16 1-1/16 5/8 1.13 1.1R32 5 4-1/2 5-1/2 1/2 3/4 1-1/16 1.435 1.405R33 5-3/16 4-7/8 5-1/2 5/16 9/16 1/2 0.718 0.664R34 5-3/16 4-3/4 5-5/8 7/16 1-1/16 5/8 1.2 1.17R35 5-3/8 4-15/16 5-13/16 7/16 1-1/16 5/8 1.25 1.21R36 5-7/8 5-9/16 6-3/16 5/16 9/16 1/2 0.813 0.735R37 5-7/8 5-7/16 6-5/16 7/16 1-1/16 5/8 1.36 1.33R38 6-3/16 5-9/16 6-13/16 5/8 7/8 13/16 2.56 2.52

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R39 6-3/8 5-15/16 6-13/16 7/16 1-1/16 5/8 1.48 1.44R40 6-3/4 6-7/16 7-1/16 7/16 9/16 1/2 0.935 0.865R41 7-1/8 6-11/16 7-9/16 7/16 11/16 5/8 1.66 1.61R42 7-1/2 6-3/4 8-1/4 3/4 1 15/16 4.21 4.16R43 7-5/8 7-5/16 7-15/16 5/16 9/16 1/2 1.055 0.975R44 7-5/8 7-3/16 8-1/16 7/16 1-1/16 5/8 1.77 1.73R45 8-5/16 7-7/8 8-3/4 7/16 1-1/16 5/8 1.93 1.88R46 8-5/16 7-13/16 8-13/16 1/2 3/4 1-1/16 2.39 2.33R47

9

8-1/4

9-3/4

3/4

1

15/16

5.06

4.99

R48 9-3/4 9-7/16 10-1/16 5/16 9/16 1/2 1.35 1.24R49 10-5/8 10-3/16 11-1/16 7/16 1-1/16 5/8 2.47 2.4R50 10-5/8 10 11-1/4 5/8 7/8 13/16 4.4 4.32R51 11 10-1/8 11-7/8 7/8 1-1/8 1-1/16 8.05 8.17R52 12 11-11/16 12-5/16 5/16 9/16 1/2 1.66 1.53R53 12-3/4 12-5/16 13-3/16 7/16 1-1/16 5/8 3 2.88R54 12-3/4 12-1/8 13-3/8 5/8 7/8 13/16 5.29 5.18R55 13-1/2 12-3/8 14-5/8 1-1/8 1-7/16 1-3/8 16.23 17.08R56 15 14-11/16 15-5/16 5/16 9/16 1/2 2.07 1.92R57 15 14-9/16 15-7/16 7/16 1/1-16 5/8 3.48 3.38R58 15 14-1/8 15-7/8 7/8 1-1/8 1-1/16 11 11.13R59 15-5/8 15-5/16 15-15/16 5/16 9-16 1/2 2.16 2R60 16 14-3/4 17-1/4 1-1/4 1-9/16 1-1/2 23.1 23.5R61 16-1/2 16-1/16 16-15/16 7/16 1-1/16 5/8 3.83 3.73R62 16-1/2 15-7/8 17-1/8 5/8 7/8 13/16 6.84 6.71R63 16-1/2 15-1/2 17-1/2 1 1-5/16 1-1/4 16.20 16.67R64 17-7/8 17-9/16 18-3/16 5/16 9/16 1/2 2.47 2.29R65 18-1/2 18-1/16 18-15/16 7/16 1-1/16 5/8 4.3 4.18R66 18-1/2 17-7/8 19-1/8 5/8 7/8 13/16 7.67 7.53R67

18-1/2

17-3/8

19-5/8

1-1/8

1-7/16

1-3/8

22.3

23.4

R68 20-3/8 20-1/16 20-11/16 5/16 9/16 1/2 2.82 2.6R69 21 20-9/16 21-7/16 7/16 1-1/16 5/8 4.87 4.74R70 21 20-1/4 21-3/4 3/4 1 15/16 11.80 11.64R71 21 19-7/8 22-1/8 1-1/8 1-7/16 1-3/8 25.2 26.5R72 22 21-11/16 22-5/16 5/16 9/16 1/2 3.04 2.81R73 23 22-1/2 23-1/2 1/2 3/4 11-1/16 6.6 6.47R74 23 22-1/4 23-3/4 3/4 1 15-16 12.95 12.75R75 23 21-3/4 24-1/4 1-1/4 1-9/16 1-1/2 33.3 35.3R76 26-1/2 26-3/16 26-13/16 5/16 9/16 1/2 3.66 3.38

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R77 27-1/4 26-5/8 27-7/8 5/8 7/8 13/16 11.3 11.1R78 27-1/4 26-1/4 28-1/4 1 1-5/16 1-1/4 27.1 27.58R79 27-1/4 25-7/8 28-5/8 1-3/8 1-3/4 1-5/8 48.7 49.75R80 24-1/4 23-15/16 24-9/16 5/16 1/2 3.11R81 25 24-7/16 25-9/16 9/16 3/4 8.55R82 2-1/4 1-13/16 2-11/16 7/16 5/8 0.508R84 2-1/2 2-1/16 2-15/16 7/16 5/8 0.564R85 3-1/8 2-5/8 3-5/8 1/2 1-1/16 0.978R86 3-9/16 2-15/16 4-3/16 5/8 13/16 1.447R87 3-15/16 3-5/16 4-9/16 5/8 13/16 1.597R88 4-7/8 4-1/8 5-5/8 3/4 15/16 2.735R89 4-1/2 3-3/4 5-1/4 3/4 15/16 2.528R90 6-1/8 5-1/4 7 7/8 1-1/16 4.55R91 10-1/4 9 11-1/2 1-1/4 1-1/2 15.05R92 9 8-9/16 9-7/16 7/16 1-1/16 5/8 2.07 2.02R93 29-1/2 28-3/4 30-1/4 3/4 15/16 16.33R94 31-1/2 30-3/4 32-1/4 3/4 15/16 17.44R95 33-3/4 33 34-1/2 3/4 15/16 18.69R96 36 35-1/8 36-7/8 7/8 1-1/16 26.65R97 38 37-1/8 38-7/8 7/8 1-1/16 28.13R98 40-1/4 39-3/8 41-1/8 7/8 1-1/16 29.79R99 9-1/4 8-13/16 9-11/16 7/16 5/8 2.08R100 R100 through R105. Information on request

RX Gaskets for API 6B FlangesAPIRingNumber Sizes of Flange, Inches GasketWeight

lbs.720-960 2000720-

960 2000lbs.

2900-lbs. 3000 -lbs. 5000 -lbs.

RX20 1-1/2 1-1/2 1-1/2 0.527RX23 2 1.15RX24 2 2 1.33RX26 2-1/2 1.42RX27 2-1/2 2-1/2 1.5RX31 3 3 1.73

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RX35 3 1.91RX37 4 4 2.09RX39 4 2.27RX41 5 5 2.54RX44 5 2.72RX45 6 6 2.96RX46 6 3.66RX47 8* 8.56RX49 8 8 3.79RX50 8 5.36RX53 10 10 4.56RX54 10 6.45RX57 12 12 5.36RX63 14 26.4RX65 16 6.63RX66 16 9.39RX69 18 7.52RX70 18 20.14RX73 20 11.63RX74 20 22.1RX82 1 0.79RX84 1-1/2 0.88RX85 2 0.88RX86 2-1/2 1.79RX87 3 1.98RX88 4 3.22RX89 3-1/2 2.98RX90 5 6.82RX91 10 17.1RX99 8* 3.31RX201 1-1/4 0.25RX205 1-3/4 0.3RX210 2-1/2 0.75RX215 4 1.5

*Crossover flange connection.

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BX Gaskets for API 6BX FlangesAPIRing

NumberNominal Flange Bore (in) Gasket

Weightlbs.2,000psi 3,000psi 5,000psi 10,000psi 15,000psi 20,000psi

BX-150 1-11/16 1-11/16 0.295BX-151 1-13/16 1-13/16 1-13/16 0.337BX-152 2-1/16 2-1/16 2-1/16 0.425BX-153 2-9/16 2-9/16 2-9/16 0.632BX-154 3-1/16 3-1/16 3-1/16 0.875BX-155 4-1/16 4-1/16 4-1/16 1.22BX-156 7-1/16 7-1/16 7-1/16 4.14BX-157 9 9 6.55BX-158 11 11 9.6BX-159 13-5/8 14.41BX-160 13-5/8 6.75BX-161 16-3/4 10.437BX-162 16-3/4 4.375BX-163 18-3/4 14.375BX-164 21BX-165 21-1/4 18.375BX-166 27.5BX-167 26-3/4 18BX168 26-3/4 24.5BX-169 5-1/8BX-170 6-5/8BX-171 8-9/16BX-172 11-5/32BX-303 30