ASTM A304-20 PDF

Scope: 1.1 This specification covers hot-worked alloy, carbon, and carbon-boron steels in a variety of compositions and sizes, which may attain specified depth of hardening in the end quench test. These steel compositions are identified by the suffix letter “H” added to the conventional grade number. 1.2 This specification provides for analyses other than those listed under Tables 1 and 2. Special hardenability limits are also permissible when approved by the purchaser and manufacturer. 1.3 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 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 A304-20 Referenced Document

ASTM A108 Standard Specification for Steel Bars, Carbon, Cold-Finished, Standard Quality
ASTM A255 Standard Test Method for Determining Hardenability of Steel
ASTM A29/A29M Standard Specification for Steel Bars, Carbon and Alloy, Hot-Wrought and Cold-Finished, General Requirements for
ASTM E112 Standard Test Methods for Determining Average Grain Size
ASTM E527 Standard Practice for Numbering Metals and Alloys (UNS)

2020 ASTM A304-20 Standard Specification for Carbon and Alloy Steel Bars Subject to End-Quench Hardenability Requirements
2016 ASTM A304-16 Standard Specification for Carbon and Alloy Steel Bars Subject to End-Quench Hardenability Requirements
2011 ASTM A304-11 Standard Specification for Carbon and Alloy Steel Bars Subject to End-Quench Hardenability Requirements
2005 ASTM A304-05(2011) Standard Specification for Carbon and Alloy Steel Bars Subject to End-Quench Hardenability Requirements
2005 ASTM A304-05e2 Standard Specification for Carbon and Alloy Steel Bars Subject to End-Quench Hardenability Requirements
2005 ASTM A304-05e1 Standard Specification for Carbon and Alloy Steel Bars Subject to End-Quench Hardenability Requirements
2005 ASTM A304-05 Standard Specification for Carbon and Alloy Steel Bars Subject to End-Quench Hardenability Requirements
2004 ASTM A304-04 Standard Specification for Carbon and Alloy Steel Bars Subject to End-Quench Hardenability Requirements
2002 ASTM A304-02 Standard Specification for Carbon and Alloy Steel Bars Subject to End-Quench Hardenability Requirements
1996 ASTM A304-96 Standard Specification for Carbon and Alloy Steel Bars Subject to End-Quench Hardenability Requirements