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Disclosure to Promote the Right To Information
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IS 3038:2006
ah7Ty7 -FT)
;
Indian Standard
MARTENSITIC STAINLESS STEEL AND ALLOY STEEL
CASTINGS FOR PRESSURE CONTAINING PARTS
SUITABLE FOR HIGH TEMPERATURE
SERVICE SPECIFICATION
Fourth Revision
ICS-77.140.80
0 BIS 2006
BUREAU OF lNDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002
ch/y 2006
Price Group 4
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Foundry and Steel Casting Sectional Committee, MTD 14
FOREWORD
This Indian Standard (Fourth Revision) was adopted by theBureau of Indian Standards, after the draft finalized by the
Foundry and Steel Casting Sectional Committee had been approved by the Metallurgical Engineering Division Council.
This standard was first published in 1965 and was subsequently revised in 1974, 1983 and 1992, While reviewing the
standard in the light of the experience gained during these years, the committee decided that the standard may be
further revised. In this revision, various clauses have been aligned with the recent standards on steel castings.
In this revision following modifications have been made:
a) Four new grades have been added in Table 1and chemical composition of some of the grades have been
modified; and
b) Table 2 and Table 3 have been modified.
Castings ofmartensitic stainless steel and alloy steel for valves, flanges, fittings and other.pressure containing parts and
of quality generally suitable for assembly with other castings or wrought steel parts by fusion welding are covered by
this specification. It is not intended to imply that the steels specified in this standard possess equal degree ofweldability.
Therefore, it is the responsibility of the purchaser to establish for himself the suitable welding technique. Since these
grades possess varying degrees of suitability for resistance to corrosion and high temperature service, it is also the
responsibility of the purchaser to determine which of the grades is suitable for the actual service requirement.
For the benefit of the purchaser, information regarding typical uses of different grades of alloy steel castings specified
in the standard has been given in Annex A.
In the preparation of this standard, assistance has been derived from the following publications:
EN 1504:1976 Specification for steelcastings for pressure purposes issued by the British Standards Institution
ASTM A 217/A 217M-200 1 Martensitic stainless steel and alloy steel castings for pressure containing parts
suitable for high-temperature service,
issued by the American Society for Testing and Materials
For the purpose of deciding whether a particular requirement of this standard is complied with, the final value observed
or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with IS 2: 1960 Rules for
rounding off numerical values (revised). The number of significant places retained in the rounded off value should be
the same as that of the specified value in this standard.
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IS 3038:2006
Indian Standard
MARTENSITIC STAINLESS STEEL AND ALLOY STEEL
CASTINGS FOR PRESSURE CONTAINING PARTS
SUITABLE FOR HIGH TEMPERATURE
SERVICE
SPECIFICATION
Fourth Revision
1 SCOPE
This standard covers the requirements for martensitic
stainless steel and alloy steel castings for pressure
containing parts suitable for high temperature service.
2 REFERENCES
The following standards contain provisions, which through
reference in this text, constitute provisions of this standard.
At the time of publication, the editions indicated were
valid. All standards are subject to revision and parties to
agreements based on this standard are encouraged to
investigate the possibility of applying the most recent
editions of the standards indicated below:
IS
No.
228
1599:1985
1608:2005
1S0 6892:1998
1757:1988
2595:1978
3658:1999
3703:2004
4897:1994
5530:1987
6601:1987
We
Methods for chemical analysis of steels
(revised) (All parts)
Method for bend test second revision
Metallic materials Tensile testing at
ambient temperature
third revision
Methods for charpy impact test
(V-notch) for metallic material
second
revision
Code of practice for radiographic
testing
firsl revision
Code of practice for liquid penetrant
flaw detection
second revision
Code of practice for magnetic particle
flaw &tection
second revision
Deviations on untoleranced dimensions
and mass of steel casting third revzkion
Recommendation for production
rectification and repair of steel castings
by metal arc welding process
second
revision
Permissible deviations in chemical
composition for product analysis of
IS No.
6907:1992
7666:1988
8800:1997
9565:1995
10724:1990
11732:1995
12938:1990
Title
steel castings
jlrst revision
Steel castings Methods of sampling
first revision
Recommended procedure for ultrasonic
examination of ferritic castings of
carbon and low alloy steel
~irsf
revision
Technical delivery conditions for steel
castings (excluding investment
castings)
fhird revision
Acceptance standards for ultrasonic
inspection of steel castings
second
revision
Acceptance standards for magnetic
particle inspection of steel castings (first
revision
Acceptance standards for dye penetrant
inspection of steel castings
first
revision
Acceptance standards for radiographic
inspection of steel castings
3 TERMINOLOGY
For the purpose of this standard, the following definitions
shall apply.
3.1 Cast (Melt) The product of any of the following:
a)
b)
c)
One furnace heat,
One crucible heat, or
A number of furnace or crucible heats.of similar
composition mixed in a ladle or tapped in separate
ladles and poured simultaneously for making a
casting.
3.2 Batch Agroup of castings of one grade of material,
cast from the same melt and heat-treated together under
identical conditions.
1
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1S3U. U: uut
4 GRADES
This standard covers atotal of fourteen grades of steel
castings for pressure containing parts suitable for high
temperature service.
5 SUPPLY OF MATERIALS
General requirements relating to supply of steel castings
shall be as laid down in IS 8800.
6 MANUFACTURE
The steel for the castings shall be made by electric arc or
electric induction or such other processes asmay be agreed
to between the purchaser and the manufacturer.
7 PARTIfXJLARS TO BE S-PECIFIED WHILE
ORDERING
For the benefit of the purchaser, particulars to be specified
while ordering for steel castings to this specification are
given in Annex B.
8 CHEMICAL COMPOSITION
8.1 The ladle analysis of steel when carried out either by
the method specified in IS 228 and its relevant parts or
any other established instrumental/chemical methods shall
be as given in Table 1, In case of dispute the procedure
given in IS 228 shall be the referee method. However,
where the method isnot given in IS228, the referee method
shall be as agreed to between the purchaser and the
manufacturer.
8.2 The manufacturer shall carry out analysis from a
sample of each melt of steel and shall supply a test
certificate of chemical analysis of the sample of steel for
each melt.
8.3 Product Analysis
If specified at the time of enquiry and order, the product
analysis may be carried out from a test piece or from a
casting representing each melt. Drillings for analysis shall
be taken from not lessthan 6 mm beneath the cast surface,
and in such a manner as not to impair the usefulness of
any casting selected. The permissible variation inproduct
analysis from the limits specified in Table 1 shall be as
given in IS 6601.
8.4 Residual Elements
8.4.1 Elem~ntsnot specified inTable 1shall not ordinarily
be added to the steel and all reasonable precautions shall
be taken to prevent contamination from scrap, etc, to keep
them as low as practicable.
8.4,2 Table 2 specifies the limits for the elements not
specified in Table 1.
8.4.3 Analysis and reporting of the analysis in the test
certificate for the above residual elements shall be done
only when so specified by the purchaser in the enquiry
and order. However, the manufacturer shall ensure that
the residual elements are within the limits specified.
9 WORKMANSHIP AND FINISH
9.1 The castings shall be accurately moulded in
accordance with the pattern or the working drawings
supplied by the purchaser with the addition of such letters,
figures and marks as maybe specified.
9.2 The purchaser shall specifJ the tolerances on all
important dimensions. On other dimensions, tolerances
specified in IS 4897 shall apply.
10 FREEDOM FROM DEFECTS
10.1 All castings shall be free from defects that will
adversely affect machining or utility of castings.
10.2 When necessary to remove risers or gates by flame
or arc or a combination-thereof, or by-any other process
involving intense heat, care shall be taken tomake the cut
at a suftlcient distance from the body of the castings so as
to prevent any defect being introduced into the casting
due to local heating. Any such operation is preferably
done before final heat-treatment.
10.3 In the event of any casting proving defective from
foundry causes in the course of preparation, machining or
erection, such casting may be rejected notwithstanding any
previous certification of satisfactory testing and/or
inspection.
11 FETTLING AND DRESSING
All castings shall be properly fettled and dressed, and all
surfaces shall be thoroughly cleaned.
12 HEAT-TREATMENT
12.1 The castings shall be heat-treated in a properly
ccmstructed furnace, having adequate means of
temperature control which shall permit the whole of the
castings being uniformly heated to the necessary
temperature. All castings shall be suitably heat-treated so
as to attain the specified mechanical properties.
12.2 Unless otherwise specified in the enquiry and order
or agreed to between the purchaser and the manufacturer,
all castings shall be supplied in the mormrdized and
tempered condition. Grades 1, 2, 4 and 4A shall be
tempered at a temperature not less than 600C. Grades 3,
5, 5A, 6, 7 and 8 shall be tempered at a temperature not
less than 675C.
2
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Table 1 Chemical Composition of Martensitic Stainless Steel and Alloy Steel Castings
for Pressure Containing Parts Suitable for High Temperature Service
(Clauses 8.1,8 .3,8.4.1
and
8.4.2)
sl
No
(1)
O
ii)
iii)
U
iv)
o
vi)
vii)
viii)
ix)
Constituent
(2)
carborr
Silicon
Manganese
Sulphur
Phosphorus
Chromium
Nickel
Molybdenum
Vanadium
Requi remeri t, Pe rcen t )
Grade
1
(3)
0.18-
0.25
0.60
1,20-
1.60
0.045
0.040
Grade
2
(4)
0.25
0.20-
0.60
0.50-
0.80
0.045
0.040
o.45-
0.65
o M~imum, ex cept wher e
range is specified.
Grade
3
(5)
0.10-
0.15
0.20-
0.45
0.40-
0.70
0.030
0.030
0.30-
0.50
o.40-
0.60
0.22-
0.30
Grade
4
(6)
o.05-
0.20
0.60
0.50-
0.80
0.045
0.040
1.00-
1.50
0.45-
0.65
Grade
4A
(7)
0.12-
0.16
0.30-
0.50
0.55-
0,75
0.030
0.030
0.85-
1.15
o.90-
1.10
0.20-
b.30
Grade
5
(8)
0.15
0.20-
0.45
0.40-
0.70
0.030
0.030
2.00-
2.50
o.90-
1.20
Grade
5A
(9)
o.05-
0.18
0.60
0.40-
0.70
0.045
0.040
2.00-
2.50
o.90-
1.20
Grade
6
(lo)
0.20
0.75
0.40-
0.70
0.045
0.040
4.00-
6.50
o.45-
0.65
Grade
7
(Ii)
0.20
I.00
0.35-
0.65
0.045
0.040
8.00-
10.00
o.90-
1.20
Grade
8
(12)
0.15
I.50
1.00
0.040
0.040
11.50-
14.00
Grade
9
(13)
o.05-
0.20
0.60
0.50-
0.80
0.045
0.040
0.50-
0.80
0.70-
I.lo
o.45-
0.65
Grade
10
(14)
o.05-
0.20
0.60
0.40-
0.70
0.045
0.040
0.50-
0.90
0.60-
1.00
0.90-
1.20
Grade
II
(15)
o.15-
0.21
0.30-
0.60
0.50-
0.80
0.015
0.020
I.oo-
I.50
0.45-
0.65
Grade
12
(16)
0.08-
0.12
0.20-
0.50
0.30-
0.60
0.010
0.030
8.00-
9.50
0.85-
1.05
0.18-
0.25
~
UI
u
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IS 3038:2006
Table 2 Residual Elements
(Clause 8.4.2)
S1No.
Grade (s)
Constituent, Max, Percent
Total
\
Content
/---
Cr
(3)
Ni Mo Cu
v
w
Sn
(4)
(5)
(6) (7)
(8) (9)
Zr
(lo)
Ti
(11)
f;)
1)
O
ii)
iii)
iv)
(2)
I
(13)
I .0
1.0
I.0
I.0
0,35
0.50 0.15
0.50 0.05
0.10
0.50
0.50
0.05
0.10
0.50 0.50
0.10
0.05
0.50
0.50 0.05
0,10
0.035 0.035
0.35
3, 4A, 5
4, 5A, 6
and 7
8
0.035
0,025
v)
vi)
vii)
viii)
I .00 0.50
0.50 0.05
0.1o
0.65
0.60
1.0
9 and 10
11
12
0.50
0.10
0.50
0.35 0.03
0.40
O,o1
0.04
12.3 The test pieces shall be heat-treated along with the
castings they represent.
13 MECHANICAL TESTS
13.1 The mechanical properties specified are those which
are to be obtained from test bars cast either separately
from or attached to the castings to which they refer and
heat-treated as given in 12. The test values so exhibited,
therefore, represent the quality of steel from which the
castings have been poured; they do not neces-sarily
represent the properties of the castings themselves.
13.2 In the case of a special or large casting or in other
cases, the purchaser may speciQ at the time of enquiry
and order, that the test, bar be cast attached to the casting
from which the mechanical tests are to be conducted. The
purchaser shall show the size and location of such an
attached test bar on the drawing, in the absence of which
the manufacturer may use his discretion in this regard.
13.2.1Sucha test bar shallnot be detached from.the casting
until the heat-treatment of the casting is over and it has
been stamped by the purchaser.
13.3 The tensile test shall be carried out in accordance
with IS 1608. The relevant mechanical properties shall be
as given in Table 3.
13.4 If specified in the enquiry and order the impact test
shall be carried out in accordance with IS 1757 and the
values obtained shall conform to the requirements given
in Table 3.
13.5 Bend Test
Bend test pieces shall be of suitable length, convenient
for the machine on which they will be bent and shall have
either a diameter of 25 mm or rectangular section of
25
x
20 mm. The edges of the rectangular test piece shall
be rounded to a radius of not more than 1.5 mm and the
test shall bemade by bending the test piece over the thinner
section in accordance with IS 1599.
14 NON-DESTRUCTIVE TESTS
14.1 Non-destructive testing shall be applied if so
specified in the.enquiry and the order. Under this heading,
the tests are grouped which aim at revealing defects that
cannot be revealed by a simple visual examination, such
as dye penetrant, magnetic particle, ultrasonic,
X-radiographic, or gamma-radiographic inspection; also
included under this heading are tests on the surface
condition by visual or visual-tactile examination. The
purchaser shall speci@ in the enquiry and order:
a)
b)
c)
-d)
e)
The type of non-destructive testing which he intends
to carry out or to have carried out;
The area or areas of the casting towhich these tests
apply, and the type of discontinuity, where relevant
Whether all, or what proportion, of the castings are
to be tested;
The severity level defining the acceptability or
non-acceptability of defectswhich maybe revealed;
and
Whether the manufacturer is or isnot contractually
responsible for carrying out the tests.
4
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Table 3 Mechanical Properties of Martensitic Stainless Steel and Alloy Steel Castings
for Pressure Containing Parts Suitable for High Temperature Service
Clauses
13.3 and 13.4)
S1No.
Characteristics
Requirement
/
Grade Grade
Grade Grade Grade
Grade
Grade Grade Grade
Grade
Grade Grade Grade Grade
;)
540
320
2
(4) (:)
450-620 510
240 i95
4A
(:) (7)
485-655 5901
275 440
5
3A 7
9 10 12
(8) (9)
3) (11)
(1 2)
(13) (14) (1:) (16)
510) 485-655 620-795
620-795 620-795
485-655 685-655 550-725 585-760
310 275 415 415 450 275 275 345 415
(1)
(2)
i)
Tensile streirgth, MPa
ii) Yield stress o r0 .2 percent,
proof stress, MPa, fi n
iii)
Elongation, percent,
M in GL 5 .6 5 ~
16
22 17
18
15 17 18 17 17 17 18 18 17
i7
35 35 35 30 35 35
45 45
v) Reduction o f area,
b
percent, Min
35
35
v)
Charpy V-notch impact
value, J, Mi tr see Note)
20
90
50
20
25 25
vi) Bend tes t ang le of bend,
M in s ee
Note)
90
90 90
vii) Diameter of maridrel, i nm
50
50 50
NOTE Either bend test or impacttest may be specified. When no requirement is specified by the purchaser, the criterion isat manufacturersoption.
Minimum.
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IS 3038:2006
14.2 Unlessotherwise agreed upon, whennon-destrr,tctive
testing is to be done, the castings shall be examined as
follows:
a) ultrasonic examination as per IS 7666;
b) magnetic particle examination as per IS 3703;
c) dye penetrant examination as per IS 3658; and
d) radiographic examination as per IS 2595.
NOTE In case of austenitic grades, ultrasonic inspection and
magnetic particle inspection may not ordinarily be feasible.
1
14.3 Unless otherwise agreed upon the following shall be
the acceptable standards:
a) IS 9565 for ultrasonic inspection,
b) 1S 10724 for magnetic particle inspection,
c) IS 11732 for dye penetrant inspection, and
d) IS 12938:1990 for radiographic .inspection.
NOTE In case of austenitic grades, ultrasonic inspection and
magnetic particle inspection may not ordinarily be feasible.
15 REPAIR OF CASTINGS
15.1 Unless otherwise specified by the purchaser in the
enquiry and order, castings may be rectified by welding.
All repairs by welding shall be carried out in accordance
with the procedure laid down in IS 5.530, If castings have
been subjected to non-destructive testing or hydraulic
testing by agreement between the purchaser and the
manufacturer, the castings shall be re-examined in the area
of repair following any recti~ing operation performed on
the castings.
15,2 To form the basis of an agreement between the
purchaser and the supplier in this respect, where relevant,
the following classification shall apply concerning the
extent of repair:
a) Weld repair involving a depth not exceeding
20 percent of wall thickness or 25 mm, whichever
is lower, shall be termed as a minor repair.
b) Any weld repair exceeding the above shall be
termed as a major repair. Further, any single repair
having an area exceeding250 mm square for every
millimetre of wall thickness shall also be deemed
to be a major repair, regardless of the considerations
mentioned in (a) above.
.15.3 Carbon Equivalent
Unless otherwise specified in the enquiry and order, or
otherwise agreed to, the carbon equivalent C.E. for the
purpose of guidance in determination of the pre and post
weld treatment applicable to carbon and low alloy steels
shall be computed as follows:
Mn +
Cr+Mo+V
C.E. = C+
+lQi+Cu
6
5 15
NOTE In case of high alloy steels for formula for computing.
Carbonequivalent shall be subjectto agreement betweentheparties,
16 HYDRAULIC TEST
16.1 When so specified by the purchaser in the enquiry
md order, a hydraulic test shall be carried out; the details
]f the test shall be agreed to between the purchaser and
:hemanufacturer.
16.2 The castings shall not be peened, plugged or
Impregnated,to stop leakages. However, unless otherwise
;pecifled at the time of enquiry and order, rectification
md upgradation of a casting by welding may be carried
Jut in accordance with the approved procedures as laid
~ownin the relevant clause of the standard.
17 METHOD OF SAMPLING
rhe method of sampling steel castings for the pqose of
;hemical analysis and mechanical tests including re-test
shall be in accordance with IS 6907.
18 MARKING
18.-1 Each casting shall be legibly -marked with tire
following:
a)
b)
c)
number of identification mark by which it is
possible to trace the melt and the heat-treatment
batch from which it was made;
manufacturers initials or trade-mark; and
other identification marks in accordance with any
agreement between the purchaser and the
manufacturer.
NOTE It is
recommended that a minimum of markings be used.
18:2 By agreement between the purchaser and the
manufacturer, castings complying with the requirements
of this standard may, afler inspection, be legibly marked
with an acceptance mark.
18.3 BIS Certification Mtwking
The castings may also be marked with the Standard Mark.
18.3.1 The use of the Standard Mark is governed by the
provisions of the Bureau of Indian Standards Act, 1986
and the Rules and Regulations made thereunder. The
detailswfanditions under-which the Iicence for the we
of Standard Mark may be granted to manufacturers or
producers, may be obtained from the Bureau of Indian
Standards.
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IS 3038:2006
Casting
Designation
Grade 1
Grade 2
Grade 3
Grade 4
Grade 4A
ANNEX A
Foreword
TYPICAL APPLICATIONS OF VARIOUS GRADES OF CASTINGS
Use
Casting
Designation
General purpose constructional alloy
Grade 5
particularly forpressure castings operating
up to about 400C.
Steam turbine castings and other
Grade 5A
application at temperature of about 450C.
Steam tucbine castings for applications at
Grade 6
temperature of about 540C.
Moderate creep resistance castings for
valves and pressure vessels for the
petroleum industry at temperature of about
Grade 7 and
520C.
Grade 8
Steam turbine castings for application
involving relatively severe stresses at
temperature of about 550C.
Use
Steam turbine castings for application
involving relatively severe stress at
temperature of about 580C.
Castings for creep resistance application
at temperature of about 580C.
Castings for general engineering, chemical
and petroleum industries, suitable for
application involving creep resistance at
temperature up to about 600C.
Castings for general engineering,
chemical and petroleum industries,
suitable for application involving creep
resistance at temperature up to about
650C.
ANNEX B
Clause 7
INFORMATION TO BE SUPPLIED BY THE PURCHASER
B-1 BASIS FOR ORDER
c
While placing an order for the purchase of steel castings
d)
covered by this standard, the purchaser should specie the
following:
a)
b)
Material specification;
e)
Drawing or reference number of the pattern (if f)
supplied by the purchaser), along with a copy of
the drawing;
g)
Optional/additional tests required, if any;
Whether the castings are to be inspected and tested
in the presence of the purchasers representative;
Condition ofdelivety;
Any special requirement; and
Test report.
7
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Bureau of Indian Standards
BIS is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promote
harmonious development of the activities of standardization, marking and quality certification of goods and
attending to connected matters in the country.
Copyright
BIS has the copyright of all its publications. No part of these publications may be reproduced in any form
without the prior permission inwriting of BIS. This does not preclude the free use, in the course of implementing
the standard, of necessary details, such as symbols and sizes, type or grade designations. Enquiries relating to
copyright be addressed to the Director (Publications), BIS.
Review of Indian Standards
Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewed
periodically; a standard along with amendments is reaffired when such review indicates that no changes are
needed; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standards
should ascertain that they are in-possession of the latest amendments or edition by referring to the latest issue of
BIS Catalogue and Standards: Monthly Additions.
This Indian Standard has been developed ffom Dot: No. MTD 14 (4577).
Amendments Issued Since Publication
Amend No.
Date of Issue Text Affected
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22542519,22542315
Manakalaya, E9 MIDC, Marol, Andheri (East)
{
28329295,28327858
MUMBAI 400093
28327891,28327892
AHMEDABAD. BANGALORE. J3HOPAL.BHUBANESHWAR. COIMBATORE. FARIDABAD.
GHAZIABAD. GUWAHATI. HYDERABAD. JAIPLJR. KANPUR. LUCKNOW. NAGPUR.
PARWANOO. PATNA. PUNE. RAJKOT. TEIIRUVANANTHAPURAM, VISAKHAPATNAM.
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