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ASTM A 890/A890M : 2012 : REV A

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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Standard Specification for Castings, Iron-Chromium-Nickel-Molybdenum Corrosion-Resistant, Duplex (Austenitic/Ferritic) for General Application

Available format(s)

Hardcopy , PDF

Superseded date

11-11-2014

Superseded by

ASTM A 890/A890M : 2013

Language(s)

English

Published date

01-11-2012

€67.30
Excluding VAT

Committee
A 01
DocumentType
Standard
Pages
5
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy

1.1This specification covers a group of cast duplex stainless steels (austenitic/ferritic).

1.2The duplex stainless steel alloys offer a combination of enhanced mechanical properties and corrosion resistance when properly balanced in composition and properly heat treated. Ferrite levels are not specified, but these alloys will develop a range of approximately 30 to 60 % ferrite with the balance austenite. It is the responsibility of the purchaser to determine which grade shall be furnished depending on design and service conditions, mechanical properties, and corrosion-resistant characteristics.

Note 1Because of the possibility of precipitation of embrittling phases, the grades included in this specification are not recommended for service at temperatures above 600ºF [315ºC].

1.3The 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.

1.3.1Within the text, the SI units are shown in brackets.

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