AMS6257B: 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 - SAE International
Browse Standards AMS6257B
Historical REVISED 2001-09-14

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 AMS6257B

This specification covers a premium aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.

These products have been used typically for parts under 3.5 inches (89 mm) in thickness requiring a through-hardening steel capable of developing a minimum hardness of 52 HRC, the parts being subject to very rigid magnetic particle inspection standards, but usage is not limited to such applications.

Certain design and processing procedures may cause these products to become susceptible to stress-corrosion cracking after heat treatment; ARP1110 recommends practices to minimize such occurrences.

AMS6257F
2016-08-10
Latest
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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