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AISI H13
Category Steel
Class Tool steel
Type Chromium hot work steel
Designations  France: AFNOR Z 40 COV 5
Germany: DIN 1.2344
Italy: UNI KU
Japan: JIS SKD61
Sweden: SS 2242
United Kingdom: B.S. BH 13
United States: ASTM A681 , FED QQ-T-570 , SAE J437 , SAE J438 , SAE J467 , UNS T20813

Composition
ElementWeight %
C  0.32-0.45 
Mn  0.20-0.50 
Si  0.80-1.20 
Cr  4.75-5.50 
Ni  0.3 
Mo  1.10-1.75 
V  0.80-1.20 
Cu  0.25 
P  0.03 
S  0.03 

Mechanical Properties
Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 7.76 25  
Poisson's Ratio 0.27-0.30 25  
Elastic Modulus (GPa) 190-210 25  

Thermal Properties
Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 10.4  20-100 more  
Thermal Conductivity (W/m-K) 28.6  215 more  
Glossary