ISO 4957 Grade 145V33 quenched (+Q)

ISO 4957 Grade 145V33 quenched (+Q) introduction

- high wear resistance with tough core
Application:
- cold forging tools of any kind, dies for screws and rivets, hammers for flat engravements
- cold forging press, draw dies ofr rod drawing (hole hardening)

Equivalent material: DIN 1.2838, EN 1.2838

ISO 4957 Grade 145V33 quenched (+Q) general

Property Temperature Value
Density 20.0 °C Density of 7.84 g/cm³

ISO 4957 Grade 145V33 quenched (+Q) thermal

Property Temperature Value Comment
Coefficient of thermal expansion -100.0 °C Coefficient of thermal expansion of 1.05E-5 1/K -
- 20.0 °C Coefficient of thermal expansion of 1.15E-5 1/K -
- 100.0 °C Coefficient of thermal expansion of 1.21E-5 1/K -
- 200.0 °C Coefficient of thermal expansion of 1.27E-5 1/K -
- 300.0 °C Coefficient of thermal expansion of 1.32E-5 1/K -
- 400.0 °C Coefficient of thermal expansion of 1.36E-5 1/K -
- 500.0 °C Coefficient of thermal expansion of 1.4E-5 1/K -
- 600.0 °C Coefficient of thermal expansion of 1.44E-5 1/K -
Melting point - Melting point of 1370 - 1425 °C Typical for Tool And Machining Steel
Specific heat capacity -100.0 °C Specific heat capacity of 423 J/(kg·K) -
- 20.0 °C Specific heat capacity of 461 J/(kg·K) -
- 100.0 °C Specific heat capacity of 479 J/(kg·K) -
- 200.0 °C Specific heat capacity of 499 J/(kg·K) -
- 300.0 °C Specific heat capacity of 517 J/(kg·K) -
- 400.0 °C Specific heat capacity of 536 J/(kg·K) -
- 500.0 °C Specific heat capacity of 558 J/(kg·K) -
- 600.0 °C Specific heat capacity of 587 J/(kg·K) -
Thermal conductivity 23.0 °C Thermal conductivity of 17 - 42 W/(m·K) Typical for Tool And Machining Steel

ISO 4957 Grade 145V33 quenched (+Q) chemical

Property Value
Carbon Carbon of 1.4 - 1.5 %
Manganese Manganese of 0.3 - 0.5 %
Phosphorus Phosphorus of 0.03 %
Silicon Silicon of 0.2 - 0.35 %
Sulfur Sulfur of 0.03 %
Vanadium Vanadium of 3 - 3.5 %

ISO 4957 Grade 145V33 quenched (+Q) mechanical

Property Temperature Value Comment
Elastic modulus -100.0 °C Elastic modulus of 217 GPa -
- 20.0 °C Elastic modulus of 212 GPa -
- 100.0 °C Elastic modulus of 207 GPa -
- 200.0 °C Elastic modulus of 199 GPa -
- 300.0 °C Elastic modulus of 192 GPa -
- 400.0 °C Elastic modulus of 184 GPa -
- 500.0 °C Elastic modulus of 175 GPa -
- 600.0 °C Elastic modulus of 164 GPa -
Poisson's ratio 23.0 °C Poisson's ratio of 0.3 [-] Typical for Tool And Machining Steel
Shear modulus 23.0 °C Shear modulus of 79 GPa Typical for Tool And Machining Steel

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