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Tool steel S1

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USA: AISI S1, UK: BS1, Sweden: 2710, Germany: 1.2542, Japan: SKS41
Chemical composition: C=0.5%, Mn=0.3%, W=2.5%, Si=0.3%, Cr=1.5%
Property Value in metric unit Value in US unit
Density 7.8 *10³ kg/m³ 486.9 lb/ft³
Modulus of elasticity 207 GPa 30000 ksi
Thermal expansion (20 ºC) 10.9*10-6 ºCˉ¹ 6.0*10-6 in/(in* ºF)
Specific heat capacity 461 J/(kg*K) 0.11 BTU/(lb*ºF)
Thermal conductivity 31.9 W/(m*K) 221 BTU*in/(hr*ft²*ºF)
Annealing temperature 740...760 ºC 1365...1400 ºF
Quenching temperature 860...900 ºC 1580...1650 ºF
Tempering temperature 175...480 ºC 350...900 ºF
Hardness (annealed) 98 RB 98 RB
Hardness (hardened) 62 RC 62 RC
Quenching medium Oil
Hardening depth Medium
Resistivity to distortion Medium
Resistivity to cracking High
Machinability Medium
Toughness High
Wear resistance Medium

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tool_steel_s1.txt · Last modified: 2023/12/13 by dmitri_kopeliovich
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