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ASTM A 897/A897M : 2016

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

Standard Specification for Austempered Ductile Iron Castings

Available format(s)

Hardcopy , PDF

Superseded date

14-10-2022

Superseded by

ASTM A 897/A897M : 2022

Language(s)

English

Published date

25-08-2016

€74.48
Excluding VAT

Committee
A 04
DocumentType
Standard
Pages
11
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

1.1This specification covers ductile iron castings that are subsequently heat treated by an austempering process as defined in 9.1.

1.2The application of the austempering heat treatment extends the range of properties achievable in ductile iron castings.

1.3No precise quantitative relationship can be stated between the properties of the iron in various locations of the same casting or between the properties of castings and those of a test specimen cast from the same iron (see Appendix X1). However, austempering heat treatment will tend to diminish any differences in mechanical properties.

1.4The production of castings, machining (if required), and the austempering heat treatments may be performed by different manufacturers, as covered in Section 13. The purchaser should establish by contract agreement, at the time of ordering, the responsibility of the various parties for meeting the specification requirements.

1.5The 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 non-conformance with the standard.

1.5.1Exception—Within the text, the SI units are shown in brackets.

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