SEW 470 Grade X10CrAlSi18 soft annealed (+A)
SEW 470 Grade X10CrAlSi18 soft annealed (+A) introduction
The material X10CrAlSi18, mat. No 1.4742 is non-scaling up to max. 1000°C (highest application temp. in air). The steel is resistant to oxidizing, sulfureous gases and shows mean resistance in reducing and carburizing gases. Application for oven components, gadgetries and for single parts of mean mechanical load.
Equivalent material: ISO X10CrAlSi18, JIS SUH21, KS STR21, GOST 15Ch18SJu, GOST 15Х18СЮ, STAS X10CrAlSi18, DIN 1.4742, DIN X10CrAl18, DIN X14CrMoS17, AFNOR Z10CAS18, BS 430S15, UNI X8Cr17, UNE F.3113, AISI 442, SAE 442, EN 1.4742
SEW 470 Grade X10CrAlSi18 soft annealed (+A) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.56 - 7.7 g/cm³ |
SEW 470 Grade X10CrAlSi18 soft annealed (+A) thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
20.0 °C |
Coefficient of thermal expansion of 9.9E-6 1/K |
- |
| - |
100.0 °C |
Coefficient of thermal expansion of 1.03E-5 1/K |
- |
| - |
200.0 °C |
Coefficient of thermal expansion of 1.05E-5 - 1.08E-5 1/K |
- |
| - |
300.0 °C |
Coefficient of thermal expansion of 1.12E-5 1/K |
- |
| - |
400.0 °C |
Coefficient of thermal expansion of 1.15E-5 - 1.16E-5 1/K |
- |
| - |
500.0 °C |
Coefficient of thermal expansion of 1.19E-5 1/K |
- |
| - |
600.0 °C |
Coefficient of thermal expansion of 1.2E-5 - 1.21E-5 1/K |
- |
| - |
700.0 °C |
Coefficient of thermal expansion of 1.24E-5 1/K |
- |
| - |
800.0 °C |
Coefficient of thermal expansion of 1.25E-5 - 1.29E-5 1/K |
- |
| - |
1000.0 °C |
Coefficient of thermal expansion of 1.35E-5 1/K |
- |
| Max service temperature, long |
- |
Max service temperature, long of 0 - 900 °C |
- |
| Melting point |
- |
Melting point of 1425 - 1530 °C |
Typical for Ferritic Stainless Steel |
| Specific heat capacity |
20.0 °C |
Specific heat capacity of 450 - 500 J/(kg·K) |
- |
| - |
100.0 °C |
Specific heat capacity of 482 J/(kg·K) |
- |
| - |
200.0 °C |
Specific heat capacity of 506 J/(kg·K) |
- |
| - |
300.0 °C |
Specific heat capacity of 525 J/(kg·K) |
- |
| - |
400.0 °C |
Specific heat capacity of 547 J/(kg·K) |
- |
| - |
500.0 °C |
Specific heat capacity of 576 J/(kg·K) |
- |
| - |
600.0 °C |
Specific heat capacity of 616 J/(kg·K) |
- |
| Thermal conductivity |
20.0 °C |
Thermal conductivity of 16 - 19 W/(m·K) |
- |
| - |
100.0 °C |
Thermal conductivity of 17.2 W/(m·K) |
- |
| - |
200.0 °C |
Thermal conductivity of 18.6 W/(m·K) |
- |
| - |
300.0 °C |
Thermal conductivity of 20 W/(m·K) |
- |
| - |
400.0 °C |
Thermal conductivity of 21.2 W/(m·K) |
- |
| - |
500.0 °C |
Thermal conductivity of 22.3 - 25 W/(m·K) |
- |
| - |
600.0 °C |
Thermal conductivity of 23.3 W/(m·K) |
- |
| - |
700.0 °C |
Thermal conductivity of 24.1 W/(m·K) |
- |
| - |
800.0 °C |
Thermal conductivity of 25.5 W/(m·K) |
- |
| - |
900.0 °C |
Thermal conductivity of 26.9 W/(m·K) |
- |
| - |
1000.0 °C |
Thermal conductivity of 28.3 W/(m·K) |
- |
| Thermal diffusivity |
20.0 °C |
Thermal diffusivity of 4.7 mm²/s |
- |
| - |
100.0 °C |
Thermal diffusivity of 4.5 mm²/s |
- |
| - |
200.0 °C |
Thermal diffusivity of 4.5 mm²/s |
- |
| - |
300.0 °C |
Thermal diffusivity of 4.6 mm²/s |
- |
| - |
400.0 °C |
Thermal diffusivity of 4.4 mm²/s |
- |
| - |
500.0 °C |
Thermal diffusivity of 4.1 mm²/s |
- |
| - |
600.0 °C |
Thermal diffusivity of 3.6 mm²/s |
- |
SEW 470 Grade X10CrAlSi18 soft annealed (+A) chemical
| Property |
Value |
| Aluminium |
Aluminium of 0.7 - 1.2 % |
| Carbon |
Carbon of 0.12 % |
| Chromium |
Chromium of 17 - 19 % |
| Manganese |
Manganese of 1 % |
| Phosphorus |
Phosphorus of 0.04 % |
| Silicon |
Silicon of 0.7 - 1.4 % |
| Sulfur |
Sulfur of 0.015 % |
SEW 470 Grade X10CrAlSi18 soft annealed (+A) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 9.06E-7 - 9.3E-7 Ω·m |
| - |
100.0 °C |
Electrical resistivity of 9.42E-7 Ω·m |
| - |
200.0 °C |
Electrical resistivity of 9.87E-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 1.18E-6 Ω·m |
| - |
700.0 °C |
Electrical resistivity of 1.22E-6 Ω·m |
| - |
800.0 °C |
Electrical resistivity of 1.24E-6 Ω·m |
| - |
900.0 °C |
Electrical resistivity of 1.26E-6 Ω·m |
| - |
1000.0 °C |
Electrical resistivity of 1.27E-6 Ω·m |
SEW 470 Grade X10CrAlSi18 soft annealed (+A) mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
20.0 °C |
Elastic modulus of 218 GPa |
- |
| - |
100.0 °C |
Elastic modulus of 213 GPa |
- |
| - |
200.0 °C |
Elastic modulus of 206 GPa |
- |
| - |
300.0 °C |
Elastic modulus of 198 GPa |
- |
| - |
400.0 °C |
Elastic modulus of 190 GPa |
- |
| - |
500.0 °C |
Elastic modulus of 180 GPa |
- |
| - |
600.0 °C |
Elastic modulus of 167 GPa |
- |
| - |
700.0 °C |
Elastic modulus of 150 GPa |
- |
| Elongation |
20.0 °C |
Elongation of 15 % |
- |
| Elongation A80 |
20.0 °C |
Elongation A80 of 13 % |
- |
| Hardness, Brinell |
20.0 °C |
Hardness, Brinell of 212 [-] |
- |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.3 [-] |
Typical for Ferritic Stainless Steel |
| Shear modulus |
23.0 °C |
Shear modulus of 77 GPa |
Typical for Ferritic Stainless Steel |
| Tensile strength |
20.0 °C |
Tensile strength of 500 - 700 MPa |
- |
| Yield strength Rp0.2 |
20.0 °C |
Yield strength Rp0.2 of 270 MPa |
- |
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