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

ASTM-A920 - 2014 EDITION - CURRENT
Show Complete Document History

Document Center Inc. is an authorized dealer of ASTM standards.
The following bibliographic material is provided to assist you with your purchasing decision:


This specification covers standards for hot-wrought, special quality microalloyed carbon steel bars intended for use in applications where as-rolled mechanical properties are desired. A typical end use includes hydraulic cylinder shafts. The typical chemical composition of microalloyed carbon steel shall contain carbon, manganese, phosphorus, sulfur, and vanadium. Heat and product analyses shall be conducted wherein the material shall conform to the required chemical composition for vanadium, columbium (niobium), and molybdenum. The elements and specified chemical ranges shall not exceed the required limits. The steel bars shall undergo tension test and conform to the mechanical property requirements such as yield strength, tensile strength, and elongation.

ORDER

Price:

$42.00        

Changes from the previous issue

A redline edition is available for this document, with all changes visible. Ask Document Center Inc. for more information.

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. Within the text and tables, SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

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.)

This document comes with our free Notification Service, good for the life of the document.

This document is available in either Paper or PDF format.

Document Number

ASTM-A920/A920M-14

Revision Level

2014 EDITION

Status

Current

Modification Type

Revision

Publication Date

Oct. 15, 2014

Document Type

Specification

Page Count

3 pages

Committee Number

A01.15