Browse Standards AMS6257E
Historical REVISED 2011-05-25

Steel Bars, Forgings, and Tubing 1.6Si - 0.82Cr - 1.8Ni - 0.40Mo - 0.08V (0.40 - 0.44C) Consumable Electrode Vacuum Remelted Normalized and Tempered AMS6257E

This specification covers a premium aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.
AMS6257G
2022-10-26
Latest
Revised
AMS6257F
2016-08-10
Historical
Revised
AMS6257E
2011-05-25
Historical
Revised
AMS6257D
2007-06-13
Historical
Revised
AMS6257C
2002-07-30
Historical
Revised
AMS6257B
2001-09-14
Historical
Revised
AMS6257A
2001-07-01
Historical
Revised
AMS6257
1994-04-01
Historical
Reaffirmed

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STANDARD

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STANDARD

Steel, Bars, Forgings, Mechanical Tubing and Forging Stock 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340) Special Aircraft Quality Cleanliness Normalized and Tempered

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