SEW 470 Grade X15CrNiSi20-12 solution annealed (+AT)
SEW 470 Grade X15CrNiSi20-12 solution annealed (+AT) introduction
The austenitic heat-resistant steel X15CrNiSi20-12, mat. No 1.4828 shows high scaling resistance up to max. 1000°C (highest application temp. in air). The steel has a high resistance to oxidizing athmosphere. Application for oven components, conveyor belts and insert boxes as well as in apparatus engineering, for air preheater, annealing bells.
Equivalent material: GB 16Cr23Ni13, GB S30920, ISO X15CrNiSi20-12, JIS SUH309, KS STR309, GOST 20Ch20N14S2, GOST 20Х20Н14С2, GOST X15CrNiSi20-12, ASTM A276Type309, ASTM A484Type309, AISI 309, SAE 30309, UNS S30900, DIN 1.4828, DIN X15CrNiSi2012, DIN X15CrNiSi20-12, AFNOR Z15CNS20.12, AFNOR Z9CN24-13, BS 309S24, SAE 309, JIS SUS309TP, JIS SUS309TB, JIS SUS309TF, EN 1.4828
SEW 470 Grade X15CrNiSi20-12 solution annealed (+AT) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.77 - 7.9 g/cm³ |
SEW 470 Grade X15CrNiSi20-12 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 1.65E-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 - 1050 °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 20.5 - 21 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 X15CrNiSi20-12 solution annealed (+AT) chemical
| Property |
Value |
| Carbon |
Carbon of 0.2 % |
| Chromium |
Chromium of 19 - 21 % |
| Manganese |
Manganese of 2 % |
| Nickel |
Nickel of 11 - 13 % |
| Nitrogen |
Nitrogen of 0.11 % |
| Phosphorus |
Phosphorus of 0.05 % |
| Silicon |
Silicon of 1.5 - 2.5 % |
| Sulfur |
Sulfur of 0.015 % |
SEW 470 Grade X15CrNiSi20-12 solution annealed (+AT) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 8.5E-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 X15CrNiSi20-12 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 |
| - |
149.0 °C |
Elastic modulus of 183.2 - 186.2 GPa |
| - |
200.0 °C |
Elastic modulus of 182 GPa |
| - |
260.0 °C |
Elastic modulus of 175.1 - 178.6 GPa |
| - |
300.0 °C |
Elastic modulus of 174 GPa |
| - |
371.0 °C |
Elastic modulus of 166.2 - 169.6 GPa |
| - |
400.0 °C |
Elastic modulus of 166 GPa |
| - |
483.0 °C |
Elastic modulus of 159.3 - 160.7 GPa |
| - |
500.0 °C |
Elastic modulus of 158 GPa |
| - |
593.0 °C |
Elastic modulus of 146.2 - 148.9 GPa |
| - |
600.0 °C |
Elastic modulus of 150 GPa |
| - |
700.0 °C |
Elastic modulus of 142 GPa |
| - |
704.0 °C |
Elastic modulus of 139.3 - 142 GPa |
| - |
800.0 °C |
Elastic modulus of 134 GPa |
| - |
816.0 °C |
Elastic modulus of 110.3 - 122.7 GPa |
| - |
900.0 °C |
Elastic modulus of 127 GPa |
| - |
1000.0 °C |
Elastic modulus of 120 GPa |
| Elongation |
20.0 °C |
Elongation of 30 % |
| Elongation A80 |
20.0 °C |
Elongation A80 of 28 % |
| Hardness, Brinell |
20.0 °C |
Hardness, Brinell of 223 [-] |
| Poisson's ratio |
24.0 °C |
Poisson's ratio of 0.23 - 0.24 [-] |
| - |
149.0 °C |
Poisson's ratio of 0.27 - 0.31 [-] |
| - |
260.0 °C |
Poisson's ratio of 0.26 - 0.35 [-] |
| - |
371.0 °C |
Poisson's ratio of 0.26 - 0.35 [-] |
| - |
483.0 °C |
Poisson's ratio of 0.29 - 0.3 [-] |
| - |
593.0 °C |
Poisson's ratio of 0.26 - 0.29 [-] |
| - |
704.0 °C |
Poisson's ratio of 0.29 - 0.36 [-] |
| - |
816.0 °C |
Poisson's ratio of 0.21 - 0.29 [-] |
| Shear modulus |
24.0 °C |
Shear modulus of 74.5 - 77.9 GPa |
| - |
149.0 °C |
Shear modulus of 71 - 72.4 GPa |
| - |
260.0 °C |
Shear modulus of 66.2 - 69.6 GPa |
| - |
371.0 °C |
Shear modulus of 62.7 - 66.2 GPa |
| - |
483.0 °C |
Shear modulus of 61.4 - 62.1 GPa |
| - |
593.0 °C |
Shear modulus of 57.9 GPa |
| - |
704.0 °C |
Shear modulus of 52.4 - 53.8 GPa |
| - |
816.0 °C |
Shear modulus of 45.5 - 47.6 GPa |
| Tensile strength |
20.0 °C |
Tensile strength of 550 - 750 MPa |
| Yield strength Rp0.2 |
20.0 °C |
Yield strength Rp0.2 of 230 MPa |
| Yield strength Rp1.0 |
20.0 °C |
Yield strength Rp1.0 of 270 MPa |
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