ISO 4957 Grade S12-1-4-5 quenched (+Q)

ISO 4957 Grade S12-1-4-5 quenched (+Q) introduction

High V-Co alloyed top high speed steel with highest wear resistance, high hot hardness and tempering resistance.
Application: face and scrub tools

Equivalent material: GB W12Cr4V5Co5, CSN 19858, BS BT15, ISO HS12-1-5-5, UNE F.5563, AISI T15, DIN 1.3202, DIN HS12-1-4-5, AFNOR Z160WKCV12-05-05-04, UNI HS12-1-5-5, UNE 12-1-5-5, SAE T15, JIS SKH10, EN 1.3202, GOST R13F4K5, GB/T T71245, GB/T W12Cr4V5Co5, ASTM Type T15, UNS T12015

ISO 4957 Grade S12-1-4-5 quenched (+Q) general

Property Temperature Value
Density 20.0 °C Density of 8.12 g/cm³

ISO 4957 Grade S12-1-4-5 quenched (+Q) thermal

Property Temperature Value Comment
Coefficient of thermal expansion -100.0 °C Coefficient of thermal expansion of 9.6E-6 1/K -
- 20.0 °C Coefficient of thermal expansion of 1.05E-5 1/K -
- 100.0 °C Coefficient of thermal expansion of 1.11E-5 1/K -
- 200.0 °C Coefficient of thermal expansion of 1.16E-5 1/K -
- 300.0 °C Coefficient of thermal expansion of 1.2E-5 1/K -
- 400.0 °C Coefficient of thermal expansion of 1.24E-5 1/K -
- 500.0 °C Coefficient of thermal expansion of 1.27E-5 1/K -
- 600.0 °C Coefficient of thermal expansion of 1.3E-5 1/K -
Melting point - Melting point of 1370 - 1425 °C Typical for Tool And Machining Steel
Specific heat capacity 23.0 °C Specific heat capacity of 420 - 460 J/(kg·K) Typical for Tool And Machining Steel
Thermal conductivity 20.0 °C Thermal conductivity of 27.6 W/(m·K) -
- 100.0 °C Thermal conductivity of 27.9 W/(m·K) -
- 200.0 °C Thermal conductivity of 27.7 W/(m·K) -
- 300.0 °C Thermal conductivity of 27.5 W/(m·K) -
- 400.0 °C Thermal conductivity of 27 W/(m·K) -
- 500.0 °C Thermal conductivity of 26.6 W/(m·K) -
- 600.0 °C Thermal conductivity of 26.1 W/(m·K) -

ISO 4957 Grade S12-1-4-5 quenched (+Q) chemical

Property Value
Carbon Carbon of 1.3 - 1.45 %
Chromium Chromium of 3.8 - 4.5 %
Cobalt Cobalt of 4.5 - 5 %
Manganese Manganese of 0.4 %
Molybdenum Molybdenum of 0.7 - 1 %
Phosphorus Phosphorus of 0.03 %
Silicon Silicon of 0.45 %
Sulfur Sulfur of 0.03 %
Tungsten Tungsten of 11.5 - 12.5 %
Vanadium Vanadium of 3.5 - 4 %

ISO 4957 Grade S12-1-4-5 quenched (+Q) electrical

Property Temperature Value
Electrical resistivity 20.0 °C Electrical resistivity of 5.24E-7 Ω·m
- 100.0 °C Electrical resistivity of 5.81E-7 Ω·m
- 200.0 °C Electrical resistivity of 6.64E-7 Ω·m
- 300.0 °C Electrical resistivity of 7.51E-7 Ω·m
- 400.0 °C Electrical resistivity of 8.44E-7 Ω·m
- 500.0 °C Electrical resistivity of 9.41E-7 Ω·m
- 600.0 °C Electrical resistivity of 1.04E-6 Ω·m

ISO 4957 Grade S12-1-4-5 quenched (+Q) mechanical

Property Temperature Value Comment
Elastic modulus 20.0 °C Elastic modulus of 224 GPa -
- 100.0 °C Elastic modulus of 220 GPa -
- 200.0 °C Elastic modulus of 214 GPa -
- 300.0 °C Elastic modulus of 207 GPa -
- 400.0 °C Elastic modulus of 199 GPa -
- 500.0 °C Elastic modulus of 191 GPa -
- 600.0 °C Elastic modulus of 180 GPa -
Poisson's ratio 20.0 °C Poisson's ratio of 0.28 [-] -
Shear modulus 23.0 °C Shear modulus of 79 GPa Typical for Tool And Machining Steel

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