ASTM A990-03
(Specification)Standard Specification for Castings, Iron-Nickel-Chromium and Nickel Alloys, Specially Controlled for Pressure Retaining Parts for Corrosive Service
Standard Specification for Castings, Iron-Nickel-Chromium and Nickel Alloys, Specially Controlled for Pressure Retaining Parts for Corrosive Service
SCOPE
1.1 This specification covers iron-nickel-chromium and nickel alloy castings specially processed with restricted melt practices, weldability testing and nondestructive examination (NDE) requirements.
1.2 A number of grade of iron-nickel-chromium and nickel alloy castings are included in this specification. Since these grades possess varying degrees of suitability for service in corrosive environments, it is the responsibility of the purchaser to determine which grade shall be furnished. Selection will depend on design and service conditions, mechanical properties, and corrosion-resistant characteristics.
1.3 The values stated in either inch-pound units or SI units are to be regarded separately as the standard. Within the text, the SI units are shown in parentheses. The value stated in each system are not exact equivalents; therefore, each system must be used independently of the other. combining values from the two systems may result in nonconformance with this specification.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Standards Content (Sample)
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Designation: A 990 – 03
Standard Specification for
Castings, Iron-Nickel-Chromium and Nickel Alloys, Specially
Controlled for Pressure Retaining Parts for Corrosive
1
Service
This standard is issued under the fixed designation A 990; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope* A 494/A 494M Specification for Castings, Nickel and
2
Nickel Alloy
1.1 This specification covers iron-nickel-chromium and
A 703/A 703M Specification for Steel Castings, General
nickel alloy castings specially processed with restricted melt
2
Requirements, for Pressure-Containing Parts
practices, weldability testing and nondestructive examination
A 743/A 743M SpecificationforCastings,Iron-Chromium,
(NDE) requirements.
Iron-Chromium-Nickel, Corrosion Resistant, for General
1.2 Anumber of grades of iron-nickel-chromium and nickel
2
Application
alloy castings are included in this specification. Since these
A 744/A 744M Specification for Castings, Iron-
grades possess varying degrees of suitability for service in
Chromium-Nickel, Corrosion-Resistant, for Severe Ser-
corrosive environments, it is the responsibility of the purchaser
2
vice
to determine which grade shall be furnished. Selection will
A 802/A 802M Practice for Steel Castings, SurfaceAccep-
depend on design and service conditions, mechanical proper-
2
tance Standards, Visual Examination
ties, and corrosion-resistant characteristics.
A 903/A 903M Specification for Steel Castings, Surface
1.3 The values stated in either inch-pound units or SI units
Acceptance Standards, Magnetic Particle and Liquid Pen-
are to be regarded separately as the standard. Within the text,
2
etrant Inspection
theSIunitsareshowninparentheses.Thevaluesstatedineach
A 941 Terminology Relating to Steel, Stainless Steel, Re-
system are not exact equivalents; therefore, each system must
3
lated Alloys, and Ferroalloys
be used independently of the other. Combining values from the
4
E 94 Guide for Radiographic Examination
two systems may result in nonconformance with this specifi-
4
E 165 Test Method for Liquid Penetrant Examination
cation.
1
E 186 Reference Radiographs for Heavy-Walled (2 to 4 ⁄2-
1.4 This standard does not purport to address all of the
4
in. (51 to 114-mm)) Steel Castings
safety concerns, if any, associated with its use. It is the
E 272 Reference Radiographs for High-Strength Copper-
responsibility of the user of this standard to establish appro-
4
Base and Nickel-Copper Alloy Castings
priate safety and health practices and determine the applica-
1
E 280 Reference Radiographs for Heavy-Walled (4 ⁄2 to
bility of regulatory limitations prior to use.
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12-in. (114 to 305-mm)) Steel Castings
2. Referenced Documents
E 446 Reference Radiographs for Steel Castings Up to 2 in.
4
(51 mm) in Thickness
2.1 ASTM Standards:
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2.2 AWS Standards:
A 351/A 351M Specification for Castings, Austenitic,
AWS A5.4, Specification for Stainless Steel Electrodes for
Austenitic-Ferritic (Duplex), for Pressure-Containing
2
Shielded Metal Arc Welding
Parts
AWS A5.9, Specification for Bare Stainless Steel Welding
A 370 Test Methods and Definitions for MechanicalTesting
2
Electrodes and Rods
of Steel Products
AWS A5.11, Specification for Nickel and Nickel Alloy
A 488/A 488M PracticeforSteelCastings,Welding,Quali-
2
Electrodes for Shielded Metal Arc Welding
fication of Procedures and Personnel
AWSA5.14, Specification for Nickel and NickelAlloy Bare
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee
3
A01.18 on Castings. Annual Book of ASTM Standards, Vol 01.01.
4
Current edition approved Sept. 10, 2003. Published October 2003. Originally Annual Book of ASTM Standards, Vol 03.03.
e1 5
approved in 1998. Last previous edition approved in 2000 as A 990–00 . Available from the American Welding Society, 550 N.W. LeJeune Road,
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Annual Book of ASTM Standards, Vol 01.02. Miami, FL 33126.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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A990–03
Welding Electrodes and Rods 5.1.4 Nondestructive inspection class required (Table 2).
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2.3 ASME/ANSI Standard: Class D will be supplied unless otherwise specified.
ASME/ANSI B16.34, Valves-Flanged, Threaded, and 5.1.5 Wetted surfaces (Table 2).
Welding End 5.2 The purchaser shall specify any supplementary require-
ments desired, including standards of acceptance, required to
3. Terminol
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