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ASTM A490M-11

Historical Revision

Standard Specification for High-Strength Steel Bolts, Classes 10.9 and 10.9.3, for Structural Steel Joints [Metric]

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1.1 This specification covers two types of quenched and tempered alloy steel, metric heavy hex structural bolts having a tensile strength of 1040 to 1210 MPa.

1.2 These bolts are intended for use in structural connections comparable to those covered under the requirements of the Specification for Structural Joints Using ASTM and bolts, approved by the Research Council on Structural Connections; endorsed by the American Institute of Steel Construction and by the Industrial Fastener Institute.

1.3 The bolts are furnished in nominal bolt diameters M12 to M36, inclusive. They are designated by type denoting chemical composition as follows:

1.4 This specification is applicable to metric heavy hex structural bolts and alternate designs as established by the Research Council in its publication, Specification for Structural Joints Using ASTM and bolts.

1.5 For inch-pound bolts, see Specification A490.

1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.7 The following safety hazards caveat pertains only to the Test Methods portion, Section 13, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


This specification covers the chemical, mechanical, and metallurgical requirements for two types of heavy hex structural bolts made of quenched and tempered alloy steel and having specified tensile strengths and sizes. These bolts are intended for use in structural connections, and are furnished in nominal bolt diameters M12 through M36. They are designated by type denoting chemical composition as follows: Type 1medium carbon alloy steel; and Type 3weathering steel. The bolts shall conform to chemical requirements as examined by heat and product analysis. The bolts shall also be tested, and shall conform accordingly to specified requirements for mechanical properties such as Brinell hardness, Rockwell hardness, microhardness, tensile strength, yield strength, elongation, reduction of area, stress area, tensile load, and proof load; metallurgical properties such as carburization and decarburization; and dimensional properties such that for the head and body, and threads. The bolts shall undergo magnetic particle inspection as well for longitudinal discontinuities and transverse cracks.


SDO ASTM: ASTM International
Document Number A490
Publication Date Dec. 15, 2011
Language en - English
Page Count 6
Revision Level 11
Supercedes
Committee F16.02
Publish Date Document Id Type View
Sept. 1, 2014 A0490M-14A Revision
Aug. 1, 2014 A0490M-14 Revision
April 1, 2012 A0490M-12 Revision
Dec. 15, 2011 A0490M-11 Revision
Dec. 1, 2010 A0490M-10E01 Revision
Dec. 1, 2010 A0490M-10 Revision
Nov. 1, 2009 A0490M-09A Revision
May 1, 2009 A0490M-09 Revision
Dec. 1, 2008 A0490M-08 Revision
Aug. 1, 2004 A0490M-04AE01 Revision
Aug. 1, 2004 A0490M-04A Revision
Jan. 1, 2004 A0490M-04 Revision
May 10, 2003 A0490M-03 Revision
May 10, 2000 A0490M-00 Revision