ASTM A 890/A890M : 2018 : REV A
Current
The latest, up-to-date edition.
Standard Specification for Castings, Iron-Chromium-Nickel-Molybdenum Corrosion-Resistant, Duplex (Austenitic/Ferritic) for General Application
Hardcopy , PDF
English
01-10-2018
Important note : Users cannot be edited or removed once added to your Multi user PDF.| Committee |
A 01
|
| DocumentType |
Standard
|
| Pages |
5
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Current
|
| Supersedes |
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 1:Because of the possibility of precipitation of embrittling phases, the grades included in this specification are not recommended for service at temperatures above 600 °F [315 °C].
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 nonconformance with the standard.
1.3.1Within the text, the SI units are shown in brackets.
1.4This 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.
| ASTM E 1245 : 1995 | Standard Practice for Determining the Inclusion or Second-Phase Constituent Content of Metals by Automatic Image Analysis |
| ASTM A 957/A957M : 2020 | Standard Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use |
| ASTM A 957/A957M : 2021 | Standard Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use |
| ASTM A 781/A781M : 2020 : REV A | Standard Specification for Castings, Steel and Alloy, Common Requirements, for General Industrial Use |
| ASTM E 1245 : 2003 : R2016 | Standard Practice for Determining the Inclusion or Second-Phase Constituent Content of Metals by Automatic Image Analysis |
| ASTM A 781/A781M : 2021 | Standard Specification for Castings, Steel and Alloy, Common Requirements, for General Industrial Use |
| ASTM E 562 : 1999 | Standard Test Method for Determining Volume Fraction by Systematic Manual Point Count |
| ASTM E 1245 : 2003 : R2023 | Standard Practice for Determining the Inclusion or Second-Phase Constituent Content of Metals by Automatic Image Analysis |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.