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ASTM A 304 : 2016

ASTM A 304 : 2016

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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Standard Specification for Carbon and Alloy Steel Bars Subject to End-Quench Hardenability Requirements

Available format(s)

Hardcopy , PDF

Superseded date

07-08-2020

Superseded by

ASTM A 304 : 2020

Language(s)

English

Published date

01-12-2016

Publisher

American Society for Testing and Materials

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Hardcopy - English
PDF - English
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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.

Committee
A 01
DocumentType
Standard
Pages
48
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

1.1This 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.

1.2This 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.

(A)New designations established in accordance with Practice E527 and SAE J 1086, Recommended Practice for Numbering Metals and Alloys (UNS).
(B)Sulfur content range is 0.035 to 0.050 %.
(C)These steels can be expected to have a 0.0005 % min boron content.
(D)Vanadium content range is 0.10 to 0.15 %.
(E)Minimum vanadium content is 0.15 %.
(A)Standard H Steels can be produced with a lead range of 0.15–0.35 %. Such steels are identified by inserting the letter “L” between the second and third numerals of the grade designation, for example, 15L22 H. Lead is generally reported as a range of 0.15–0.35 %.
(B)New designations established in accordance with Practice E527 and SAE J 1086, Recommended Practice for Numbering Metals and Alloys (UNS).
(C)These steels can be expected to have 0.0005 % min boron content.

1.3The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.

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