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AISI M6
Category Steel
Class Tool steel
Type Molybdenum high speed steel
Designations  United States: ASTM A600 , FED QQ-T-590 , UNS T11306

Composition
ElementWeight %
C  0.75-0.85 
Mn  0.15-0.40 
Si  0.20-0.45 
Cr  3.75-4.50 
Ni  0.3 
Mo  4.50-5.50 
W  3.75-4.75 
V  1.30-1.70 
Co  11.00-13.00 
Cu  0.25 
P  0.03 
S  0.03 

Mechanical Properties
Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 7.7-8.03 25  
Poisson's Ratio 0.27-0.30 25  
Elastic Modulus (GPa) 190-210 25  
Glossary