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AISI D5
Category Steel
Class Tool steel
Type High-carbon, high-chromium cold work steel
Designations  United States: ASTM A681 , FED QQ-T-570 , SAE J437 , SAE J438 , UNS T30405

Composition
ElementWeight %
C  1.40-1.60 
Mn  0.60 
Si  0.60 
Cr  11.00-13.00 
Ni  0.30 
Mo  0.70-1.20 
V  1.00 
Co  2.50-3.50 
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