ASTM-A957/A957M 2021(Redline)

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A957/A957M-21 Standard Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use (Redline)

Published By	Publication Date	Number of Pages
ASTM	2021	14

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Category: ASTM

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Description

ASTM A957/A957M-21

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

ASTM A957/A957M

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.

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 in this specification 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 SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

casting; investment casting; master heat; steel; sub-heat;

ICS Code

ICS Number Code 77.100 (Ferroalloys)

DOI: 10.1520/A0957_A0957M-21

Additional information

A128/A128M	Steel Castings, Austenitic Manganese
A447/A447M	Steel Castings, Chromium-Nickel-Iron Alloy (25-12 Class), for High-Temperature Service
A915/A915M	Steel Castings, Carbon and Alloy, Chemical Requirements Similar to Standard Wrought Grades
A890/A890M	Castings, Iron-Chromium-Nickel-Molybdenum Corrosion-Resistant, Duplex (Austenitic/Ferritic) for General Application
A747/A747M	Steel Castings, Stainless, Precipitation Hardening
A732/A732M	Castings, Investment, Carbon and Low-Alloy Steel for General Application, and Cobalt Alloy for High Strength at Elevated Temperatures
A494/A494M	Castings, Nickel and Nickel Alloy
A148/A148M	Steel Castings, High-Strength, for Structural Purposes
A1002	Castings, Nickel-Aluminum Ordered Alloy
A743/A743M	Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion-Resistant, for General Application
A560/A560M	Castings, Chromium-Nickel Alloy
ASTM Designation	Title of Specification
A27/A27M	Steel Castings, Carbon, for General Application
A744/A744M	Castings, Iron-Chromium-Nickel, Corrosion Resistant, for Severe Service
A297/A297M	Steel Castings, Iron-Chromium and Iron-Chromium-Nickel, Heat-Resistant, for General Application
A958/A958M	Steel Castings, Carbon and Alloy, with Tensile Requirements, Chemical Requirements Similar to Standard Wrought Grades