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  • ASTM
    A920/A920M-24e1 Standard Specification for Steel Bars, Microalloy, Hot-Wrought, Special Quality, Mechanical Properties
    Edition: 2024
    $144.00
    Unlimited Users per year

Description of ASTM-A920/A920M 2024

ASTM A920/A920M-24e1

Active Standard: Standard Specification for Steel Bars, Microalloy, Hot-Wrought, Special Quality, Mechanical Properties




ASTM A920/A920M

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 inch-pound 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.


Keywords

carbon steel bars; microalloyed steel; steel bars;


ICS Code

ICS Number Code 77.140.20 (Steels of high quality)


DOI: 10.1520/A0920_A0920M-24E01



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