ASTM A1021/A1021M-20
Standard Specification for Martensitic Stainless Steel Forgings and Forging Stock for High-Temperature Service

Standard No.

ASTM A1021/A1021M-20

Release Date

2020

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM A1021/A1021M-20

Scope

1.1 This specification covers martensitic chromium stainless steel forgings, forged bar, and forging stock for high temperature service. The mechanical properties are developed by suitable heat treatment, as indicated for each alloy. 1.2 This specification is expressed in both inch-pound units and in SI units; however, unless the purchase order or contract specifies the applicable M specification designation (SI units), the inch-pound units shall apply. The values stated in either inch-pound units 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 necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 1.3 Supplementary requirements of an optional nature are provided for use at the option of the purchaser. The supplementary requirements shall apply only when specified individually by the purchaser in the purchase order or contract. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 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 A1021/A1021M-20 Referenced Document

• ASTM A275/A275M Standard Test Method for Magnetic Particle Examination of Steel Forgings
• ASTM A370 Standard Test Methods and Definitions for Mechanical Testing of Steel Products
• ASTM A788/A788M Standard Specification for Steel Forgings, General Requirements
• ASTM E112 Standard Test Methods for Determining Average Grain Size
• ASTM E292 Standard Test Methods for Conducting Time-for-Rupture Notch Tension Tests of Materials
• ASTM E381 Standard Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings
• ASTM E562 Standard Test Method for Determining Volume Fraction by Systematic Manual Point Count

ASTM A1021/A1021M-20 history

• 2020 ASTM A1021/A1021M-20 Standard Specification for Martensitic Stainless Steel Forgings and Forging Stock for High-Temperature Service
• 2015 ASTM A1021/A1021M-05(2015) Standard Specification for Martensitic Stainless Steel Forgings and Forging Stock for High-Temperature Service
• 2005 ASTM A1021/A1021M-05(2010) Standard Specification for Martensitic Stainless Steel Forgings and Forging Stock for High-Temperature Service
• 2005 ASTM A1021/A1021M-05 Standard Specification for Martensitic Stainless Steel Forgings and Forging Stock for High-Temperature Service
• 2002 ASTM A1021-02 Standard Specification for Martensitic Stainless Steel Forgings and Forging Stock for High-Temperature Service
• 2001 ASTM A1021-01 Standard Specification for Martensitic Stainless Steel Forgings and Forging Stock for High-Temperature Service