ASTM-A957 2001

$40.63

A957-01 Standard Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use

Published By	Publication Date	Number of Pages
ASTM	2001	7

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Category: ASTM

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Description

ASTM A957-01

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

ASTM A957

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 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.

Keywords

casting; investment casting; master heat; sub-heat

ICS Code

ICS Number Code 77.100 (Ferroalloys)

DOI: 10.1520/A0957-01

Additional information

A 27/A 27M	Steel Castings, Carbon, for General Application
A 148/A 148M	Steel Castings, High-Strength, for Structural Purposes
A 447/A 447M	Steel Castings, Chromium-Nickel-Iron Alloy (25-12 Class), for High-Temperature Service
A 744/A 744M	Castings, Iron-Chromium-Nickel, Corrosion Resistant, for Severe Service
ASTM Designation	Title of Specification
A 560/A 560M	Castings, Chromium-Nickel Alloy
A 743/A 743M	Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion-Resistant, for General Application
A 747/A 747M	Steel Castings, Stainless, Precipitation Hardening
A 297/A 297M	Steel Castings, Iron-Chromium and Iron-Chromium-Nickel, Heat-Resistant, for General Application
A 732/A 732M	Castings, Investment, Carbon and Low Alloy Steel for General Application, and Cobalt Alloy for High Strength at Elevated Temperatures
A 915/A 915M	Steel Castings, Carbon and Alloy, Chemical Requirements Similar to Standard Wrought Grades
A 890/A 890M	Castings, Iron-Chromium-Nickel-Molybdenum Corrosion-Resistant, Duplex (Austenitic/Ferritic) for General Application
A 494/A 494M	Castings, Nickel and Nickel Alloy