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ASTM A48/A48M - 03(2008) PDF

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ASTM  A48/A48M

Revision / Edition: 03      Chg: W/ REAP     Date: 00/00/08

STANDARD SPECIFICATION FOR GRAY IRON CASTINGS


Document Abstract
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.

This specification subordinates chemical composition to tensile strength.

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).

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

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