Steel Bars, Forgings, and Tubing, 0.80cr 0.85ni 0.20mo 0.003b (0.35-0.40c)

Standard:
Revised:
  • 2000-12-15
 
  • HISTORICAL Access the latest revision: AMS6421G
Publisher:
  • SAE International
Pages:
9
Scope:

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

These products have been used typically for parts, 0.875 in. (22.22 mm) and under in section thickness at time of heat treatment, requiring a through-hardening steel capable of developing hardness as high as 50 HRC when properly hardened and tempered, and also for parts of greater thickness requiring proportionately lower hardness, but usage is not limited to such applications.

History:
Standard Published Revision Status
AMS6421G 2016-04-18 Latest Revised
2011-05-24 Historical Revised
2006-06-21 Historical Revised
2000-12-15 Historical Revised
1994-04-01 Historical Reaffirmed
1983-10-01 Historical Revised
1982-10-01 Historical Noncurrent
1951-11-01 Historical Issued
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