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Tool steel T15

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USA: AISI T15, UK: BT15, Sweden: USA T15, Germany: 1.3202, Japan: SKH10
Chemical composition: C=1.6%, Mn=0.3%, W=12%, Si=0.3%, Cr=4%, V=5%, Co=5%
Property Value in metric unit Value in US unit
Density 8.19 *10³ kg/m³ 511.2 lb/ft³
Modulus of elasticity 214 GPa 31000 ksi
Thermal expansion (20 ºC) 9.9*10-6 ºCˉ¹ 5.5*10-6 in/(in* ºF)
Specific heat capacity 461 J/(kg*K) 0.11 BTU/(lb*ºF)
Thermal conductivity 20.9 W/(m*K) 147 BTU*in/(hr*ft²*ºF)
Annealing temperature 870...890 ºC 1600...1630 ºF
Quenching temperature 1165-1235 ºC 2125-2250 ºF
Tempering temperature 540...650 ºC 1000...1200 ºF
Hardness (annealed) 56 RC 56 RC
Hardness (hardened) 68 RC 68 RC
Quenching medium Oil, air or salt
Hardening depth High
Resistivity to distortion Medium
Resistivity to cracking Medium
Machinability Medium (may be improved by addition of sulfur up to 0.22%)
Toughness Low
Wear resistance Very high

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tool_steel_t15.txt · Last modified: 2023/12/13 by dmitri_kopeliovich
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