ASTM A959-19
Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels

Standard No.

ASTM A959-19

Release Date

2019

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM A959-19

Scope

1.1 This guide provides a guide to ASTM Subcommittees A01.06, A01.10, A01.17, A01.22, and A01.28 for specifying chemical composition limits of wrought stainless steels. It is intended that these recommended grade composition limits be suitable for adoption by other standardization bodies that prepare standards for stainless steel products. 1.2 Included in this guide are the recommendations for determining the number of significant figures for specifying chemical composition from Test Methods, Practices, and Terminology A751. 1.3 All stainless steel UNS numbers and the stainless steel grades in all standards overseen by the aforementioned ASTM subcommittees have been included, except those grades applicable to restricted special end uses and alloys containing less than 10.5 % minimum chromium. 1.4 Not addressed are minor composition modifications which a specific product subcommittee may find necessary to accommodate effects of normal processing or to enhance fabricability by the producer or user, or both. 1.5 Also not generally addressed (except when established by ASTM product subcommittees) is a complete rationalization of all limits, especially when such would conflict with longstanding practices and is not justified by special technical effect. 1.6 Excluded from this guide are cast material and welding filler metal. 1.7 This 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 A959-19 Referenced Document

• ASTM A751 Standard Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
• ASTM E527 Standard Practice for Numbering Metals and Alloys (UNS)

ASTM A959-19 history

• 2019 ASTM A959-19 Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
• 2016 ASTM A959-16 Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
• 2011 ASTM A959-11 Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
• 2009 ASTM A959-09 Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
• 2007 ASTM A959-07 Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
• 2004 ASTM A959-04 Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
• 2003 ASTM A959-03 Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
• 2001 ASTM A959-01 Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
• 2001 ASTM A959-00a Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels