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AMERICAN SOCIETY FOR TESTING MATERIALS. 1315 SPRUCE STREET, PHILADELPHIA, PA.

16 pp. (English).
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 Summary

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7 I. «0.^2-1924 AMERICAN SOCIETY FOR TESTING MATERIALS. JTufl

.V, 1315 SPRUCE STREET, PHILADELPHIA, PA.

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STANDARD SPECIFICATIONS

MM

i

FOR

CARBON-STEEL AND ALLOY-STEEL FORGINGS.

18-21.

These specificati^/sl £rF"'isu"*& under the fixed designation A 1 'X number indicates theTeftrf^oAOflj *^"ption as standard, or in the s of revision, the year of last revisions ' Jf

Adopted, 1901; Revised, 1905, 1914, 1916, 1918, 1921.

1. (a) These specifications cover the various classes of "bon-steel and alloy-steel forgings now commonly used and t covered by other existing specifications of the American ciety for Testing Materials.

(b) The purposes for which these classes are frequently ;d are as follows:

Class A, for forgings which may be welded or case-hardened;

Class B, for mild-steel forgings for structural purposes, ■ minor ship fittings, etc.;

Class C, for mild-steel forgings for structural purposes • ships, etc.;

Classes D, E, F, G, H and I, for various machinery forges, choice depending upon design and upon the stresses and •vices to be imposed.

Classes K, L and M, for various machinery forgings, choice pending upon design and upon the stresses and services to be posed, and upon the character of machining operations to be ne.

Material Co/ered.

"1

1

'^1

• -2. The 1 UK-esses: open

I. MANUFACTURE.

 hall be made by either or both the following j.'L-n-nearth or electric furnace.

3. A sufficient discard shall be made from each ingot to secure freedom from injurious piping and undue segregation.

4. The manufacturer and the purchaser shall agree upon forgings on which a prolongation for test purposes shall be provided.

5. If boring is specified,. the diameter of the hole shall Boring.

Process. Discard.

Prolongati for Tests.


 
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