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ASTM A291
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ASTM A291 2003 Edition, April 10, 2003 Standard Specification for Steel Forgings, Carbon and Alloy, for Pinions, Gears and Shafts for Reduction Gears
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Description / Abstract:
This specification covers normalized and tempered carbon steel and
quenched and tempered alloy
steel forgings for pinions, gears, and shafts.
Several grades of steel are covered as follows:
Grade 1 Class A is normalized and tempered carbon steel.
Grade 2 Class B, Grade 3 Class C, Grade 3A Class D, Grades 4 to 7 Classes E, F, G, and H, Grade 8 Class I, and Grade 9 Class J are liquid quenched and tempered alloy steel.
All grades and classes are considered weldable under proper conditions. Welding technique is of fundamental importance and it is presupposed that welding procedure and inspection shall be in accordance with approved methods for the class of material used.
The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
Several grades of steel are covered as follows:
Grade 1 Class A is normalized and tempered carbon steel.
Grade 2 Class B, Grade 3 Class C, Grade 3A Class D, Grades 4 to 7 Classes E, F, G, and H, Grade 8 Class I, and Grade 9 Class J are liquid quenched and tempered alloy steel.
All grades and classes are considered weldable under proper conditions. Welding technique is of fundamental importance and it is presupposed that welding procedure and inspection shall be in accordance with approved methods for the class of material used.
The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.