EN 10088-1 Grade X39Cr13 quenched and tempered (+QT800)

EN 10088-1 Grade X39Cr13 quenched and tempered (+QT800) introduction

Material X39Cr13 is comparable to X 38 Cr 13 acc. to DIN 17440 : 1985-07. The material is used for the production of cutting tools (knife blades, scissors, cutting surgical instruments), ball bearing balls, abrasion resistant components for controlling and pump parts, springs, piston rods, screws. Application in hardened condition with a honed and polished surface, in this case resistant to water and steam. Corrosion resistance is insufficient in annealed or high tempered condition.
Application temperature up to 200 deg (for the comparable DIN-material)

Equivalent material: GB 4Cr13, CSN 17024, AFNOR Z40C14, GOST 40Ch13, GB S42040, ISO X39Cr13, UNI X40Cr14, STAS 40Cr130, SS 2304, UNE F.3404, UNE X40Cr13, MSZ KO13, ISO 4031-420-00-I, ISO MP13P, GOST 40Х13, ASTM A959UNSS42000, AISI 420, AISI 420C, AISI 420HC, DIN X38Cr13, DIN 1.4031, BS 420S45, SAE 420, EN 1.4031, UNS S42000

EN 10088-1 Grade X39Cr13 quenched and tempered (+QT800) general

Property Temperature Value
Density 20.0 °C Density of 7.7 - 7.71 g/cm³

EN 10088-1 Grade X39Cr13 quenched and tempered (+QT800) thermal

Property Temperature Value Comment
Coefficient of thermal expansion 20.0 °C Coefficient of thermal expansion of 1.02E-5 1/K -
- 100.0 °C Coefficient of thermal expansion of 1.05E-5 1/K -
- 200.0 °C Coefficient of thermal expansion of 1.09E-5 - 1.1E-5 1/K -
- 300.0 °C Coefficient of thermal expansion of 1.13E-5 - 1.15E-5 1/K -
- 400.0 °C Coefficient of thermal expansion of 1.16E-5 - 1.2E-5 1/K -
- 500.0 °C Coefficient of thermal expansion of 1.2E-5 1/K -
- 600.0 °C Coefficient of thermal expansion of 1.22E-5 1/K -
Max service temperature, long - Max service temperature, long of 0 - 200 °C -
Melting point - Melting point of 1370 - 1530 °C Typical for Martensitic Stainless Steel
Specific heat capacity 20.0 °C Specific heat capacity of 439 - 460 J/(kg·K) -
- 100.0 °C Specific heat capacity of 474 J/(kg·K) -
- 200.0 °C Specific heat capacity of 498 J/(kg·K) -
- 300.0 °C Specific heat capacity of 517 J/(kg·K) -
- 400.0 °C Specific heat capacity of 538 J/(kg·K) -
- 500.0 °C Specific heat capacity of 564 J/(kg·K) -
- 600.0 °C Specific heat capacity of 598 J/(kg·K) -
Thermal conductivity 20.0 °C Thermal conductivity of 24.6 - 30 W/(m·K) -
- 100.0 °C Thermal conductivity of 24.7 W/(m·K) -
- 200.0 °C Thermal conductivity of 25 W/(m·K) -
- 300.0 °C Thermal conductivity of 25.2 W/(m·K) -
- 400.0 °C Thermal conductivity of 25.5 W/(m·K) -
- 500.0 °C Thermal conductivity of 25.8 W/(m·K) -
- 600.0 °C Thermal conductivity of 26 W/(m·K) -
Thermal diffusivity 20.0 °C Thermal diffusivity of 7.3 mm²/s -
- 100.0 °C Thermal diffusivity of 6.4 mm²/s -
- 200.0 °C Thermal diffusivity of 6.1 mm²/s -
- 300.0 °C Thermal diffusivity of 5.8 mm²/s -
- 400.0 °C Thermal diffusivity of 5.4 mm²/s -
- 500.0 °C Thermal diffusivity of 4.8 mm²/s -
- 600.0 °C Thermal diffusivity of 4.1 mm²/s -

EN 10088-1 Grade X39Cr13 quenched and tempered (+QT800) chemical

Property Value
Carbon Carbon of 0.36 - 0.42 %
Chromium Chromium of 12.5 - 14.5 %
Manganese Manganese of 1 %
Phosphorus Phosphorus of 0.04 %
Silicon Silicon of 1 %
Sulfur Sulfur of 0.015 %

EN 10088-1 Grade X39Cr13 quenched and tempered (+QT800) electrical

Property Temperature Value
Electrical resistivity 20.0 °C Electrical resistivity of 5.5E-7 - 5.87E-7 Ω·m
- 100.0 °C Electrical resistivity of 6.55E-7 Ω·m
- 200.0 °C Electrical resistivity of 7.38E-7 Ω·m
- 300.0 °C Electrical resistivity of 8.19E-7 Ω·m
- 400.0 °C Electrical resistivity of 8.96E-7 Ω·m
- 500.0 °C Electrical resistivity of 9.7E-7 Ω·m
- 600.0 °C Electrical resistivity of 1.04E-6 Ω·m

EN 10088-1 Grade X39Cr13 quenched and tempered (+QT800) mechanical

Property Temperature Value Comment
Elastic modulus 20.0 °C Elastic modulus of 215 - 222 GPa -
- 100.0 °C Elastic modulus of 212 - 216 GPa -
- 200.0 °C Elastic modulus of 205 - 209 GPa -
- 300.0 °C Elastic modulus of 200 - 201 GPa -
- 400.0 °C Elastic modulus of 190 - 192 GPa -
- 500.0 °C Elastic modulus of 183 GPa -
- 600.0 °C Elastic modulus of 174 GPa -
Elongation 20.0 °C Elongation of 7 - 10 % -
Poisson's ratio 23.0 °C Poisson's ratio of 0.3 [-] Typical for Martensitic Stainless Steel
Shear modulus 23.0 °C Shear modulus of 77 GPa Typical for Martensitic Stainless Steel
Tensile strength 20.0 °C Tensile strength of 800 - 1100 MPa -
Tensile strength, transverse 20.0 °C Tensile strength, transverse of 800 - 1100 MPa -
Yield strength Rp0.2 20.0 °C Yield strength Rp0.2 of 650 - 700 MPa -
Yield strength Rp0.2, transverse 20.0 °C Yield strength Rp0.2, transverse of 650 - 700 MPa -

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