EN 10222-5 Grade X3CrNiMo18-12-3 solution annealed (+AT)

EN 10222-5 Grade X3CrNiMo18-12-3 solution annealed (+AT) introduction

The corrosion resistant material X3CrNiMo18-12-3, material number 1.4449 is predominantly used for pressure vessel construction.

Equivalent material: GB 06Cr19Ni13Mo3, GB S31708, JIS SUSF317, KS STSF317, ASTM A965 Grade F317, UNS S31700, ISO X5CrNiMo17-3, ASTM Grade F317, ASTM F317, DIN 1.4449, AFNOR Z6CND17-12-04, AISI 317, SAE 317, JIS SUS317, JIS SUS317TP, JIS SUS317TB, JIS SUS317TPY, EN 1.4449

EN 10222-5 Grade X3CrNiMo18-12-3 solution annealed (+AT) general

Property Temperature Value
Density 20.0 °C Density of 8 g/cm³

EN 10222-5 Grade X3CrNiMo18-12-3 solution annealed (+AT) thermal

Property Temperature Value Comment
Coefficient of thermal expansion 100.0 °C Coefficient of thermal expansion of 1.6E-5 1/K -
- 200.0 °C Coefficient of thermal expansion of 1.65E-5 1/K -
- 300.0 °C Coefficient of thermal expansion of 1.7E-5 1/K -
- 400.0 °C Coefficient of thermal expansion of 1.75E-5 1/K -
- 500.0 °C Coefficient of thermal expansion of 1.8E-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 15 W/(m·K) -

EN 10222-5 Grade X3CrNiMo18-12-3 solution annealed (+AT) chemical

Property Value
Carbon Carbon of 0.035 %
Chromium Chromium of 17 - 18.2 %
Copper Copper of 1 %
Manganese Manganese of 2 %
Molybdenum Molybdenum of 2.25 - 2.75 %
Nickel Nickel of 11.5 - 12.5 %
Nitrogen Nitrogen of 0.08 %
Phosphorus Phosphorus of 0.05 %
Silicon Silicon of 1 %
Sulfur Sulfur of 0.015 %

EN 10222-5 Grade X3CrNiMo18-12-3 solution annealed (+AT) electrical

Property Temperature Value
Electrical resistivity 20.0 °C Electrical resistivity of 7.5E-7 Ω·m

EN 10222-5 Grade X3CrNiMo18-12-3 solution annealed (+AT) mechanical

Property Temperature Value Comment
Elastic modulus 20.0 °C Elastic modulus of 200 GPa -
- 100.0 °C Elastic modulus of 194 GPa -
- 200.0 °C Elastic modulus of 186 GPa -
- 300.0 °C Elastic modulus of 179 GPa -
- 400.0 °C Elastic modulus of 172 GPa -
- 500.0 °C Elastic modulus of 165 GPa -
Elongation 20.0 °C Elongation of 40 - 45 % -
Poisson's ratio 23.0 °C Poisson's ratio of 0.3 [-] Typical for Austenitic Stainless Steel
Shear modulus 23.0 °C Shear modulus of 77 GPa Typical for Austenitic Stainless Steel
Tensile strength 20.0 °C Tensile strength of 520 - 720 MPa -
Yield strength Rp0.2 20.0 °C Yield strength Rp0.2 of 220 MPa -
Yield strength Rp1.0 20.0 °C Yield strength Rp1.0 of 255 MPa -

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