Steel, Bars and Forgings 3.1cr 11.5ni 13.5co 1.2mo (0.21 - 0.25c) Vacuum Melted, Annealed Heat Treatable to 290 Ksi (1999 Mpa) Tensile Strength

Standard:
Revised:
  • 2001-10-01
 
  • HISTORICAL Access the latest revision: AMS6478B
Publisher:
  • SAE International
Pages:
8
Scope:

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

These products have been used typically for parts requiring a combination of high strength, high toughness, and weldability, but usage is not limited to such applications. Product after proper heat treatment should attain a minimum tensile strength of 290 ksi (1999 MPa) and yield strength of 245 ksi (1689 MPa).

History:
Standard Published Revision Status
AMS6478B 2005-09-30 Latest Canceled
2001-10-01 Historical Revised
2000-09-01 Historical Reaffirmed
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