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ASTM

ASTM A957-01a

(Specification)

Standard Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use

Standard Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use

SCOPE
1.1 This specification covers a group of requirements that are mandatory for castings produced by the investment casting process to meet the metallurgical requirements of the following steel casting specifications issued by ASTM.ASTM DesignationTitle of SpecificationA 27/A 27MSteel Castings, Carbon, for General Application A 148/A 148MSteel Castings, High-Strength, for Structural Purposes A 297/A 297MSteel Castings, Iron-Chromium and Iron-Chromium-Nickel, Heat-Resistant, for General Application A 447/A 447M Steel Castings, Chromium-Nickel-Iron Alloy (25-12 Class), for High-Temperature Service A 494/A 494MCastings, Nickel and Nickel AlloyA 560/A 560MCastings, Chromium-Nickel AlloyA 732/A 732MCastings, Investment, Carbon and Low Alloy Steel for General Application, and Cobalt Alloy for High Strength at Elevated Temperatures A 743/A 743MCastings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion-Resistant, for General Application A 744/A 744MCastings, Iron-Chromium-Nickel, Corrosion Resistant, for Severe Service A 747/A 747MSteel Castings, Stainless, Precipitation Hardening A 890/A 890MCastings, Iron-Chromium-Nickel-Molybdenum Corrosion-Resistant, Duplex (Austenitic/Ferritic) for General ApplicationA 915/A 915MSteel Castings, Carbon and Alloy, Chemical Requirements Similar to Standard Wrought Grades  
1.2 This specification also covers a group of supplementary requirements that may be applied to the above specifications as indicated therein. These are provided for use when additional testing or inspection is desired and apply only when specified individually by the purchaser in the order.
1.3 When investment castings are ordered, the requirements stated herein form an integral part of the material specification. In cases of conflict, the requirements of this specification shall take precedence over the individual material specification requirements.
1.4 The values stated in either inch-pound or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values 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 the specification. Inch-pound units are applicable for material ordered to Specification A 957 and SI units for material ordered to Specification A 957M.

General Information

Status
Historical
Publication Date
09-Dec-2001
ICS
77.100 - Ferroalloys
Technical Committee
A01 - Steel, Stainless Steel and Related Alloys
Drafting Committee
A01.18 - Castings
Current Stage
Ref Project

Relations

Replaces
ASTM A957-01 - Standard Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use
Effective Date
10-Dec-2001
Replaced By
ASTM A957-03 - Standard Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use
Effective Date
10-Apr-2003
Referred By
ASTM F3160-21 - Standard Guide for Metallurgical Characterization of Absorbable Metallic Materials for Medical Implants
Effective Date
10-Dec-2001

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ASTM A957-01a - Standard Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial UseASTM A957-01a - Standard Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use
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ASTM A957-01a - Standard Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use
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Standards Content (Sample)

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: A 957 – 01a
Standard Specification for
Investment Castings, Steel and Alloy, Common
1
Requirements, for General Industrial Use
This standard is issued under the fixed designation A 957; 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 In cases of conflict, the requirements of this specification shall
take precedence over the individual material specification
1.1 This specification covers a group of requirements that
requirements.
are mandatory for castings produced by the investment casting
1.4 The values stated in either inch-pound or SI units are to
process to meet the metallurgical requirements of the following
be regarded separately as standard. Within the text, the SI units
steel casting specifications issued by ASTM.
are shown in brackets. The values stated in each system are not
ASTM Designation Title of Specification
exact equivalents; therefore, each system must be used inde-
A 27/A 27M Steel Castings, Carbon, for General Ap-
plication
pendently of the other. Combining values from the two systems
A 148/A 148M Steel Castings, High-Strength, for Struc-
may result in nonconformance with the specification. Inch-
tural Purposes
pound units are applicable for material ordered to Specification
A 297/A 297M Steel Castings, Iron-Chromium and Iron-
Chromium-Nickel, Heat-Resistant, for
A 957 and SI units for material ordered to Specification
General Application
A 957M.
A 447/A 447M Steel Castings, Chromium-Nickel-Iron Al-
loy (25-12 Class), for High-Temperature
2. Referenced Documents
Service
A 494/A 494M Castings, Nickel and Nickel Alloy
2.1 ASTM Standards:
A 560/A 560M Castings, Chromium-Nickel Alloy
A 27/A 27M Specification for Steel Castings, Carbon, for
A 732/A 732M Castings, Investment, Carbon and Low
2
Alloy Steel for General Application, and
General Application
Cobalt Alloy for High Strength at Elevated
A 148/A 148M Specification for Steel Castings, High
Temperatures
2
A 743/A 743M Castings, Iron-Chromium, Iron-Chromium- Strength, for Structural Purposes
Nickel, Corrosion-Resistant, for General
A 297/A 297M Specification for Steel Castings, Iron-
Application
Chromium and Iron-Chromium-Nickel, Heat Resistant, for
A 744/A 744M Castings, Iron-Chromium-Nickel, Corro-
2
sion Resistant, for Severe Service General Application
A 747/A 747M Steel Castings, Stainless, Precipitation
A 370 Test Methods and Definitions for Mechanical Testing
Hardening
3
of Steel Products
A 890/A 890M Castings, Iron-Chromium-Nickel-
Molybdenum Corrosion-Resistant, Duplex
A 447/A 447M Specification for Steel Castings,
(Austenitic/Ferritic) for General Applica-
Chromium-Nickel-Iron Alloy (25-12 Class), for High-
tion
2
Temperature Service
A 915/A 915M Steel Castings, Carbon and Alloy, Chemi-
cal Requirements Similar to Standard
A 488/A 488M Practice for Steel Castings, Welding, Quali-
Wrought Grades
2
fications of Procedures and Personnel
1.2 This specification also covers a group of supplementary A 494/A 494M Specification for Castings, Nickel and
2
Nickel Alloy
requirements that may be applied to the above specifications as
indicated therein. These are provided for use when additional A 560/A 560M Specification for Castings, Chromium-
2
Nickel Alloy
testing or inspection is desired and apply only when specified
individually by the purchaser in the order. A 609/A 609M Practice for Castings, Carbon, Low-Alloy,
1.3 When investment castings are ordered, the requirements and Martensitic Stainless Steel, Ultrasonic Examination
2
stated herein form an integral part of the material specification. Thereof
A 732/A 732M Specification for Castings, Investment, Car-
bon and Low Alloy Steel for General Application, and
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel, and Related Alloys and is the direct responsibility of Subcommittee
A01.18 on Castings.
2
Current edition approved Dec. 10, 2001. Published February 2002. Originally Annual Book of ASTM Standards, Vol 01.02.
3
published as A 957 - 96. Last previous edition A 957 - 01. Annual Book of ASTM Standards, Vol 01.03.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
A 957
2
Cobalt Alloy for High Strength at Elevated Temperatures nitions A 370, Test Methods, Practices, and Terminology
A 743/A 743M Specification for Castings, Iron-Chromium, A 751
...

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