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High Speed Steel
Hot Work Tool Steel
 
 
AISI T15
Category  Steel
Class  Tool steel
Type  Tungsten high speed steel
Designations  Germany: DIN 1.3202
Italy: UNI 130505 KU
United Kingdom: B.S. BT 15
United States: ASTM A600 , FED QQ-T-590 , UNS T12001 , UNS T12015

Composition
 
Element  Weight % 
C  1.50-1.60 
Mn  0.15-0.40 
Si  0.15-0.40 
Cr  3.75-5.00 
Ni  0.3 
Mo  1.00 (max) 
W  11.75-13.00 
V  4.50-5.25 
Co  4.75-5.25 
Cu  0.25 
P  0.03 
S  0.03 

Mechanical Properties
 
Properties  Conditions 
T (°C) Treatment
Density (×1000 kg/m3)   8.19 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)   9 .9  20 - 200
Thermal Conductivity (W/m-K)   20.9


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