EN 10090 Grade X33CrNiMnN23-8 solution heat-treated and precipitation hardened (+AT+P)

EN 10090 Grade X33CrNiMnN23-8 solution heat-treated and precipitation hardened (+AT+P) introduction

X33CrNiMnN23-8 is a Cr-Ni-Mn-W-N- alloyed valve steel.

Equivalent material: GB 33Cr23Ni8Mn3N, ISO X33CrNiMnN23-8, GOST X33CrNiMnN23-8, SAE EV16, UNS S63018, SAE 23-8N, DIN 1.4866, DIN X33CrNiMnN23-8, AFNOR X33CrNiMnN23-8, BS X33CrNiMnN23-8, AISI EV-16, SAE EV-16, EN 1.4866, GB/T 33Cr23Ni8Mn3N

EN 10090 Grade X33CrNiMnN23-8 solution heat-treated and precipitation hardened (+AT+P) general

Property Temperature Value
Density 20.0 °C Density of 7.8 g/cm³

EN 10090 Grade X33CrNiMnN23-8 solution heat-treated and precipitation hardened (+AT+P) thermal

Property Temperature Value Comment
Coefficient of thermal expansion 100.0 °C Coefficient of thermal expansion of 1.65E-5 1/K -
- 300.0 °C Coefficient of thermal expansion of 1.71E-5 1/K -
- 500.0 °C Coefficient of thermal expansion of 1.73E-5 1/K -
- 700.0 °C Coefficient of thermal expansion of 1.74E-5 1/K -
Melting point - Melting point of 1230 - 1480 °C Typical for Austenitic Stainless Steel
Specific heat capacity 20.0 °C Specific heat capacity of 500 J/(kg·K) -
Thermal conductivity 20.0 °C Thermal conductivity of 14.5 W/(m·K) -

EN 10090 Grade X33CrNiMnN23-8 solution heat-treated and precipitation hardened (+AT+P) chemical

Property Value
Carbon Carbon of 0.28 - 0.38 %
Chromium Chromium of 22 - 24 %
Manganese Manganese of 1.5 - 3.5 %
Molybdenum Molybdenum of 0.5 %
Nickel Nickel of 7 - 9 %
Nitrogen Nitrogen of 0.25 - 0.35 %
Phosphorus Phosphorus of 0.05 %
Silicon Silicon of 0.5 - 1 %
Sulfur Sulfur of 0.03 %
Tungsten Tungsten of 0.5 %

EN 10090 Grade X33CrNiMnN23-8 solution heat-treated and precipitation hardened (+AT+P) electrical

Property Temperature Value Comment
Electrical resistivity 23.0 °C Electrical resistivity of 8.5E-7 Ω·m Typical for Austenitic Stainless Steel

EN 10090 Grade X33CrNiMnN23-8 solution heat-treated and precipitation hardened (+AT+P) mechanical

Property Temperature Value Comment
Elastic modulus 20.0 °C Elastic modulus of 205 GPa -
Elongation 20.0 °C Elongation of 20 % -
Hardness, Rockwell C 20.0 °C Hardness, Rockwell C of 25 [-] -
Poisson's ratio 23.0 °C Poisson's ratio of 0.3 [-] Typical for Austenitic Stainless Steel
Reduction of area 20.0 °C Reduction of area of 30 % -
Shear modulus 23.0 °C Shear modulus of 77 GPa Typical for Austenitic Stainless Steel
Tensile strength 20.0 °C Tensile strength of 850 - 1100 MPa -
- 500.0 °C Tensile strength of 600 MPa -
- 550.0 °C Tensile strength of 570 MPa -
- 600.0 °C Tensile strength of 530 MPa -
- 650.0 °C Tensile strength of 470 MPa -
- 700.0 °C Tensile strength of 400 MPa -
- 750.0 °C Tensile strength of 340 MPa -
- 800.0 °C Tensile strength of 280 MPa -
Yield strength Rp0.2 20.0 °C Yield strength Rp0.2 of 550 MPa -
- 500.0 °C Yield strength Rp0.2 of 270 MPa -
- 550.0 °C Yield strength Rp0.2 of 250 MPa -
- 600.0 °C Yield strength Rp0.2 of 220 MPa -
- 650.0 °C Yield strength Rp0.2 of 210 MPa -
- 700.0 °C Yield strength Rp0.2 of 190 MPa -
- 750.0 °C Yield strength Rp0.2 of 180 MPa -
- 800.0 °C Yield strength Rp0.2 of 170 MPa -

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