ASTM-A920 Standard Specification for Steel Bars, Microalloy, Hot-Wrought, Special Quality, Mechanical Properties

ASTM-A920 - 2014 R19 EDITION - CURRENT
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Standard Specification for Steel Bars, Microalloy, Hot-Wrought, Special Quality, Mechanical Properties
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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. Four strength classes are available, designated 60, 75, 80, and 100, corresponding to the minimum yield strength in ksi.

1.3 Sections and sizes of bar steels available are covered in Specification A 29/A 29M.

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 inch-pound units or SI units are to be regarded separately as standard. Within the text and tables, SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.

1.6 Unless the order specifies the applicable "M" specification designation, the material shall be furnished to the inch-pound units.

Keywords

carbon steel bars; microalloyed steel; steel bars; ICS Number Code 77.140.20 (Steels of high quality)

To find similar documents by ASTM Volume:

01.05 (Steel--Bars, Forgings, Bearing, Chain, Tool)

To find similar documents by classification:

77.140.20 (Stainless steels Including alloyed steels, corrosion-resistant steels, heat-resisting steels, etc.)

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Document Number

ASTM-A0920_A0920M-14R19

Revision Level

2014 R19 EDITION

Status

Current

Modification Type

Revision

Publication Date

Sept. 1, 2019

Document Type

Specification

Page Count

3 pages

Committee Number

A01.15