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AISI L2
Category Steel
Class Tool steel
Type Low-alloy special-purpose tool steel
Designations United States: UNS T61202

Composition
ElementWeight %
C  0.45-1.00 
Mn  0.10-0.90 
Si  0.50 
Cr  0.70-1.20 
Mo  0.25 
V  0.10-0.30 
Cu  0.25 
P  0.03 
S  0.03 

Mechanical Properties
Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 7.86 25  
Poisson's Ratio 0.27-0.30 25  
Elastic Modulus (GPa) 190-210 25  
Tensile Strength (Mpa) 710  25  annealed  more
Yield Strength (Mpa) 510 
Elongation (%) 25 
Reduction in Area (%) 50 
Hardness (HRB) 96  25  annealed more
Impact Strength (J)
(Charpy V-notch)
28  25  oil quenched from 855°C, single tempered at 205°C  more

Thermal Properties
Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 14.4  20-425 more  
Glossary