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ASTM A983/A983M-98

Historical Revision

Standard Specification for Continuous Grain Flow Forged Carbon and Alloy Steel Crankshafts for Medium Speed Diesel Engines

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1.1 This specification covers continuous grain flow forged carbon and alloy steel crankshafts for medium speed diesel and natural gas engines.

1.2 The steel used in the manufacture of the forgings is required to be vacuum degassed.

1.3 Provision is made for treatment of designated surfaces of the crankshaft to provide enhanced fatigue strength, or wear resistance, or both.

1.4 The values stated in either inch-pound units or SI (metric) units are to be regarded separately as standards. Within the text and tables the 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.

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

1.6 Except as specifically required in this specification, all provisions of Specification A 788 apply.


SDO ASTM: ASTM International
Document Number A983
Publication Date Sept. 10, 2001
Language en - English
Page Count 4
Revision Level 98
Supercedes
Committee A01.06
Publish Date Document Id Type View
April 1, 2011 A0983_A0983M-06R11E01 Revision
Sept. 1, 2006 A0983_A0983M-06 Revision
Oct. 1, 2005 A0983_A0983M-05 Revision
March 1, 2004 A0983_A0983M-04 Revision
Sept. 10, 2001 A0983_A0983M-98 Revision
Sept. 10, 2001 A0983_A0983M-01 Revision
March 1, 2021 A0983_A0983M-06R21 Reaffirmation
March 1, 2016 A0983_A0983M-06R16 Reaffirmation
April 1, 2011 A0983_A0983M-06R11 Reaffirmation