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ASTM

ASTM A957-01

(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 A957-96 - Standard Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use
Effective Date
10-Dec-2001
Replaced By
ASTM A957-01a - Standard Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use
Effective Date
10-Dec-2001
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 A957-01 - Standard Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial UseASTM A957-01 - Standard Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use
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ASTM A957-01 - 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 superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: A 957 – 01
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 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
1.1 This specification covers a group of requirements that
are shown in brackets. The values stated in each system are not
are mandatory for castings produced by the investment casting
exact equivalents; therefore, each system must be used inde-
process to meet the metallurgical requirements of the following
pendently of the other. Combining values from the two systems
steel casting specifications issued by ASTM.
may result in nonconformance with the specification. Inch-
ASTM Designation Title of Specification
pound units are applicable for material ordered to Specification
A 27/A 27M Steel Castings, Carbon, for General Ap-
plication
A 957 and SI units for material ordered to Specification
A 148/A 148M Steel Castings, High-Strength, for Struc-
A 957M.
tural Purposes
A 297/A 297M Steel Castings, Iron-Chromium and Iron-
2. Referenced Documents
Chromium-Nickel, Heat-Resistant, for
General Application
2.1 ASTM Standards:
A 447/A 447M Steel Castings, Chromium-Nickel-Iron Al-
A 27/A 27M Specification for Steel Castings, Carbon, for
loy (25-12 Class), for High-Temperature
2
Service
General Application
A 494/A 494M Castings, Nickel and Nickel Alloy
A 148/A 148M Specification for Steel Castings, High
A 560/A 560M Castings, Chromium-Nickel Alloy
2
Strength, for Structural Purposes
A 732/A 732M Castings, Investment, Carbon and Low
Alloy Steel for General Application, and
A 297/A 297M Specification for Steel Castings, Iron-
Cobalt Alloy for High Strength at Elevated
Chromium and Iron-Chromium-Nickel, Heat Resistant, for
Temperatures
2
A 743/A 743M Castings, Iron-Chromium, Iron-Chromium- General Application
Nickel, Corrosion-Resistant, for General
A 370 Test Methods and Definitions for Mechanical Testing
Application
3
of Steel Products
A 744/A 744M Castings, Iron-Chromium-Nickel, Corro-
sion Resistant, for Severe Service A 447/A 447M Specification for Steel Castings,
A 747/A 747M Steel Castings, Stainless, Precipitation
Chromium-Nickel-Iron Alloy (25-12 Class), for High-
Hardening
2
Temperature Service
A 890/A 890M Castings, Iron-Chromium-Nickel-
Molybdenum Corrosion-Resistant, Duplex
A 488/A 488M Practice for Steel Castings, Welding, Quali-
(Austenitic/Ferritic) for General Applica- 2
fications of Procedures and Personnel
tion
A 494/A 494M Specification for Castings, Nickel and
A 915/A 915M Steel Castings, Carbon and Alloy, Chemi-
2
cal Requirements Similar to Standard
Nickel Alloy
Wrought Grades
A 560/A 560M Specification for Castings, Chromium-
2
1.2 This specification also covers a group of supplementary Nickel Alloy
A 609/A 609M Practice for Castings, Carbon, Low-Alloy,
requirements that may be applied to the above specifications as
indicated therein. These are provided for use when additional and Martensitic Stainless Steel, Ultrasonic Examination
2
Thereof
testing or inspection is desired and apply only when specified
individually by the purchaser in the order. A 732/A 732M Specification for Castings, Investment, Car-
bon and Low Alloy Steel for General Application, and
1.3 When investment castings are ordered, the requirements
2
stated herein form an integral part of the material specification. Cobalt Alloy for High Strength at Elevated Temperatures
In cases of conflict, the requirements of this specification shall A 743/A 743M Specification for Castings, Iron-Chromium,
take precedence over the individual material specification Iron-Chromium-Nickel, Corrosion Resistant, for General
2
requirements. Application
A 744/A 744M Specification for Castings, Iron-Chromium-
2
Nickel, Corrosion Resistant, for Severe Service
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 Oct. 10, 2001. Published December 2001. Originally Annual Book of ASTM Standards, Vol 01.02.
3
published as A 957 - 96. Last previous edition A 957 - 96. Annual Book of ASTM Standards, Vol 01.03.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
A 957
A 747/A 747M Specification for Steel Castings, Stainless, 3.2.2 sub-heat, n—a portion
...

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