A – 02 Standard Specification for Steel Forgings, Carbon and Alloy, for Pinions, Gears and Shafts for Reduction Gears, alloy steel forgings, carbon steel . ASTM A/AM: Standard Specification for Steel Forgings, Carbon and Alloy , for Pinions, Gears and Shafts for Reduction Gears. ASTM A Standard Specification for Steel Forgings, Carbon and Alloy, For Pinions, Gears and Shafts. Uploaded by medialeon. ASTM A Standard.

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A — 03 Standard Speci? A number in parentheses indicates the year of last reapproval.

A superscript epsilon e indicates an editorial change since the last revision or reapproval. Welding technique is of fundamental importance and it is presupposed that welding procedure and inspection shall qstm in accordance with approved methods for the class of material used. The values given in parentheses are for information only.

In addition, a detailed drawing, sketch, or written description of the forging should be included with the inquiry or order. Current edition approved Apr.

Originally approved in Last previous edition approved in as A — The forgings shall be heated to a suitable temperature for a sufficient length of time for austenitization and shall be suitably cooled to bring about complete transformation. Grade 1 shall be air cooled while Grades 2 through 9 ast be liquid quenched. Minimum tempering temperatures shall be as follows: When impact tests are speci? When agreed upon between the manufacturer and the purchaser, forgings weighing less than lb kg each rough-machined weight may be tested in lots; the number of forgings to make up a lot shall be by mutual agreement.


The nominal or speci?

The axis of the tangential test specimen shall be located as near to the surface of the forging as practicable. Brinell hardness tests shall be made on prepared areas on the forgings xstm machining to the sizes ordered by the purchaser and after stress relieving if stress relieving is required.

ASTM A291 Grade 5

On each forging under 8 in. Hardness tests shall be performed at the quarter-face width of the tooth portion diameter.

Dimensions and Tolerance 9. Grade 3A Class D 0. Grade 8 Class I 0. When vacuum carbon deoxidation is used, silicon maximum shall be 0.

ASTM A X ASTM A – Metal and Metallurgy engineering – Eng-Tips

Optional with manufacturer and purchaser. Brinell Hardness Number Range to to Grade Class Tensile Strength, min psi 85 80 95 95 95 MPa Charpy V-notch 3, 3A C, D Marking, Packaging, and Loading The purchaser may indicate the desired location of such identi? Rough Turning and Boring S1. The specimens shall be machined and tested with minimum properties and test temperatures speci?


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