SEW 470 Grade X12CrNi23-13 solution annealed (+AT)
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SEW 470 Grade X12CrNi23-13 solution annealed (+AT)

SEW 470 Grade X12CrNi23-13 solution annealed (+AT) introduction

The heat resistant steel X12CrNi23-13, mat. No 1.4833, is resistant in air up to 1000°C (highest application temp.). Low resistance to sulfureous gases (reducing as well as oxidizing). Mean resistance to nitrogenous, oxygen deficient gases and to carburization. The material is ideal for welding according to all welding methods and is applicated in industrial furnace construction.

Equivalent material: GB 06Cr23Ni13, GB S30908, DIN X7CrNi23-14, IS 15Cr24Ni13, ISO X12CrNi23-13, JIS SUH309, KS STR309, GOST 20Ch23N13, GOST 20Х23Н13, GOST X12CrNi23-13, ASTM A240Type309S, ASTM A276Type309S, ASTM A480Type309S, ASME 309S, AISI 309S, UNS S30908, DIN 1.4833, AFNOR Z20CN24-13, SAE 309S, JIS SUS309S, JIS SUS309STP, JIS SUS309STPY, JIS SUS309STB, EN X7CrNi23-14, EN 1.4833

SEW 470 Grade X12CrNi23-13 solution annealed (+AT) general

Property Temperature Value
Density 20.0 °C Density of 7.77 - 7.9 g/cm³

SEW 470 Grade X12CrNi23-13 solution annealed (+AT) thermal

Property Temperature Value Comment
Coefficient of thermal expansion -100.0 °C Coefficient of thermal expansion of 1.49E-5 1/K -
- 20.0 °C Coefficient of thermal expansion of 1.61E-5 1/K -
- 100.0 °C Coefficient of thermal expansion of 1.67E-5 1/K -
- 200.0 °C Coefficient of thermal expansion of 1.6E-5 - 1.72E-5 1/K -
- 300.0 °C Coefficient of thermal expansion of 1.77E-5 1/K -
- 400.0 °C Coefficient of thermal expansion of 1.75E-5 - 1.81E-5 1/K -
- 500.0 °C Coefficient of thermal expansion of 1.84E-5 1/K -
- 600.0 °C Coefficient of thermal expansion of 1.8E-5 - 1.88E-5 1/K -
- 700.0 °C Coefficient of thermal expansion of 1.91E-5 1/K -
- 800.0 °C Coefficient of thermal expansion of 1.85E-5 - 1.94E-5 1/K -
- 900.0 °C Coefficient of thermal expansion of 1.97E-5 1/K -
- 1000.0 °C Coefficient of thermal expansion of 1.95E-5 - 2E-5 1/K -
Max service temperature, long - Max service temperature, long of 0 - 1000 °C -
Melting point - Melting point of 1230 - 1480 °C Typical for Austenitic Stainless Steel
Specific heat capacity -100.0 °C Specific heat capacity of 440 J/(kg·K) -
- 20.0 °C Specific heat capacity of 472 - 500 J/(kg·K) -
- 100.0 °C Specific heat capacity of 487 J/(kg·K) -
- 200.0 °C Specific heat capacity of 503 J/(kg·K) -
- 300.0 °C Specific heat capacity of 512 J/(kg·K) -
- 400.0 °C Specific heat capacity of 520 J/(kg·K) -
- 500.0 °C Specific heat capacity of 530 J/(kg·K) -
- 600.0 °C Specific heat capacity of 541 J/(kg·K) -
- 700.0 °C Specific heat capacity of 551 J/(kg·K) -
- 800.0 °C Specific heat capacity of 559 J/(kg·K) -
- 900.0 °C Specific heat capacity of 565 J/(kg·K) -
- 1000.0 °C Specific heat capacity of 571 J/(kg·K) -
Thermal conductivity 20.0 °C Thermal conductivity of 12.6 - 15 W/(m·K) -
- 100.0 °C Thermal conductivity of 14.1 W/(m·K) -
- 200.0 °C Thermal conductivity of 15.9 W/(m·K) -
- 300.0 °C Thermal conductivity of 17.4 W/(m·K) -
- 400.0 °C Thermal conductivity of 19 W/(m·K) -
- 500.0 °C Thermal conductivity of 19 - 20.5 W/(m·K) -
- 600.0 °C Thermal conductivity of 21.9 W/(m·K) -
- 700.0 °C Thermal conductivity of 23.3 W/(m·K) -
- 800.0 °C Thermal conductivity of 24.7 W/(m·K) -
- 900.0 °C Thermal conductivity of 26.1 W/(m·K) -
- 1000.0 °C Thermal conductivity of 27.5 W/(m·K) -
Thermal diffusivity 20.0 °C Thermal diffusivity of 3.4 mm²/s -
- 100.0 °C Thermal diffusivity of 3.6 mm²/s -
- 200.0 °C Thermal diffusivity of 3.9 mm²/s -
- 300.0 °C Thermal diffusivity of 4.3 mm²/s -
- 400.0 °C Thermal diffusivity of 4.5 mm²/s -
- 500.0 °C Thermal diffusivity of 4.7 mm²/s -
- 600.0 °C Thermal diffusivity of 4.8 mm²/s -
- 700.0 °C Thermal diffusivity of 5.1 mm²/s -
- 800.0 °C Thermal diffusivity of 5.5 mm²/s -
- 900.0 °C Thermal diffusivity of 5.8 mm²/s -
- 1000.0 °C Thermal diffusivity of 5.9 mm²/s -

SEW 470 Grade X12CrNi23-13 solution annealed (+AT) chemical

Property Value
Carbon Carbon of 0.15 %
Chromium Chromium of 22 - 24 %
Manganese Manganese of 2 %
Nickel Nickel of 12 - 14 %
Nitrogen Nitrogen of 0.11 %
Phosphorus Phosphorus of 0.05 %
Silicon Silicon of 1 %
Sulfur Sulfur of 0.015 %

SEW 470 Grade X12CrNi23-13 solution annealed (+AT) electrical

Property Temperature Value
Electrical resistivity 20.0 °C Electrical resistivity of 7.8E-7 - 8.68E-7 Ω·m
- 100.0 °C Electrical resistivity of 9.21E-7 Ω·m
- 200.0 °C Electrical resistivity of 9.75E-7 Ω·m
- 300.0 °C Electrical resistivity of 1.03E-6 Ω·m
- 400.0 °C Electrical resistivity of 1.08E-6 Ω·m
- 500.0 °C Electrical resistivity of 1.12E-6 Ω·m
- 600.0 °C Electrical resistivity of 1.15E-6 Ω·m
- 700.0 °C Electrical resistivity of 1.18E-6 Ω·m
- 800.0 °C Electrical resistivity of 1.21E-6 Ω·m
- 900.0 °C Electrical resistivity of 1.24E-6 Ω·m
- 1000.0 °C Electrical resistivity of 1.26E-6 Ω·m

SEW 470 Grade X12CrNi23-13 solution annealed (+AT) mechanical

Property Temperature Value
Elastic modulus -100.0 °C Elastic modulus of 206 GPa
- 20.0 °C Elastic modulus of 196 GPa
- 24.0 °C Elastic modulus of 193.7 GPa
- 100.0 °C Elastic modulus of 190 GPa
- 200.0 °C Elastic modulus of 182 GPa
- 300.0 °C Elastic modulus of 174 GPa
- 400.0 °C Elastic modulus of 166 GPa
- 500.0 °C Elastic modulus of 158 GPa
- 600.0 °C Elastic modulus of 150 GPa
- 700.0 °C Elastic modulus of 142 GPa
- 800.0 °C Elastic modulus of 134 GPa
- 900.0 °C Elastic modulus of 127 GPa
- 1000.0 °C Elastic modulus of 120 GPa
Elongation 20.0 °C Elongation of 35 %
Elongation A80 20.0 °C Elongation A80 of 33 %
Hardness, Brinell 20.0 °C Hardness, Brinell of 192 [-]
Poisson's ratio 24.0 °C Poisson's ratio of 0.23 - 0.24 [-]
Shear modulus 24.0 °C Shear modulus of 74.5 - 77.9 GPa
Tensile strength 20.0 °C Tensile strength of 500 - 700 MPa
Yield strength Rp0.2 20.0 °C Yield strength Rp0.2 of 210 MPa
Yield strength Rp1.0 20.0 °C Yield strength Rp1.0 of 250 MPa

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