ASTM A920/A920M-14(2019)
Standard Specification for Steel Bars, Microalloy, Hot-Wrought, Special Quality, Mechanical Properties

Standard No.

ASTM A920/A920M-14(2019)

Release Date

2019

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM A920/A920M-14(2019)

Scope

1.1 This specification covers hot-wrought, special quality microalloyed carbon steel bars intended for use in applications where as-rolled mechanical properties are desired. A typical end use is hydraulic cylinder shafts. 1.2 The bars shall be furnished to chemical composition and mechanical properties as provided herein. Chemical composition is based on standard carbon steel grades modified to include microalloying elements such as columbium (niobium), vanadium, or molybdenum. Three strength classes are available, designated 75 [520], 80 [550], and 100 [690], corresponding to the minimum yield strength in ksi. 1.3 Sections and sizes of bar steels available are covered in Specification A29/A29M. 1.4 Supplementary Requirements S1 to S5 are provided for use when additional controls or requirements are desired. These shall apply only when specified on the purchase order. 1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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. 1.6 Unless the order specifies the applicable “M” specification designation, the material shall be furnished to the inchpound units. 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 A920/A920M-14(2019) Referenced Document

• ASTM A29/A29M Standard Specification for Steel Bars, Carbon and Alloy, Hot-Wrought and Cold-Finished, General Requirements for
• ASTM A370 Standard Test Methods and Definitions for Mechanical Testing of Steel Products
• ASTM A576 Standard Specification for Steel Bars, Carbon, Hot-Wrought, Special Quality
• ASTM E45 Standard Test Methods for Determining the Inclusion Content of Steel

ASTM A920/A920M-14(2019) history

• 2019 ASTM A920/A920M-14(2019) Standard Specification for Steel Bars, Microalloy, Hot-Wrought, Special Quality, Mechanical Properties
• 2014 ASTM A920/A920M-14 Standard Specification for Steel Bars, Microalloy, Hot-Wrought, Special Quality, Mechanical Properties
• 2007 ASTM A920/A920M-07 Standard Specification for Steel Bars, Microalloy, Hot-Wrought, Special Quality, Mechanical Properties
• 2002 ASTM A920/A920M-02a Standard Specification for Steel Bars, Microalloy, Hot-Wrought, Special Quality, Mechanical Properties
• 2002 ASTM A920/A920M-02 Standard Specification for Steel Bars, Microalloy, Hot-Wrought, Special Quality, Mechanical Properties
• 1997 ASTM A920/A920M-97 Standard Specification for Steel Bars, Microalloy, Hot-Wrought, Special Quality, Mechanical Properties