ASTM-A957 Historical Revision Information
Standard Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use

ASTM-A957 - 2006 EDITION - SUPERSEDED
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Standard Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use
ORDER

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 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; steel; sub-heat; ICS Number Code 77.100 (Ferroalloys)

To find similar documents by ASTM Volume:

01.02 (Ferrous Castings; Ferroalloys)

To find similar documents by classification:

77.100 (Ferroalloys Including classification, designation, sampling, chemical analysis, etc.)

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Document Number

ASTM-A957/A957M-06

Revision Level

2006 EDITION

Status

Superseded

Modification Type

Revision with Designation Change

Publication Date

June 15, 2006

Document Type

Specification

Page Count

8 pages

Committee Number

A01.18