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ASTM A48/A48M-03

Historical Revision

Standard Specification for Gray Iron Castings

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1.1 This specification covers gray iron castings intended for general engineering use where tensile strength is a major consideration. Castings are classified on the basis of the tensile strength of the iron in separately cast test bars.

1.1.1 This specification subordinates chemical composition to tensile strength.

1.2 Castings produced to this specification are graded on the basis of minimum tensile strength obtained in special test coupons designed to standardize cooling rate. The tensile strength developed in certain casting sections may vary from test coupon values (see X1.2).

1.3 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.


This specification covers gray iron castings intended for general engineering use where tensile strength is a major consideration. Castings are classified on the basis of the tensile strength of the iron in separately cast test bars. The surface of the casting shall be free of adhering sand, scale, cracks, and hot tears, as determined by visual examination. The test bars are designated into S, A, B, and C categories, according to the thickness of its controlling wall section. The casting shall be subjected to a tension test to determine its tensile strength.


SDO ASTM: ASTM International
Document Number A48
Publication Date Dec. 1, 2003
Language en - English
Page Count 6
Revision Level 03
Supercedes
Committee A04.01
Publish Date Document Id Type View
May 1, 2022 A0048_A0048M-22 Revision
Dec. 1, 2003 A0048_A0048M-03 Revision
May 10, 2001 A0048_A0048M-00 Revision
Sept. 1, 2021 A0048_A0048M-03R21 Reaffirmation
Nov. 1, 2016 A0048_A0048M-03R16 Reaffirmation
Oct. 1, 2012 A0048_A0048M-03R12 Reaffirmation
Oct. 1, 2008 A0048_A0048M-03R08 Reaffirmation