SEW 470 Grade X10CrAlSi7 soft annealed (+A)
SEW 470 Grade X10CrAlSi7 soft annealed (+A) introduction
The ferritic chrome steel X10CrAlSi7, mat. No 1.4713, shows very high resistance to oxidizing sulphureous gases, it is unsuitable for oxygen deficient and nitrogenous gases. Temperature limit for permanent operation accounts for 700 °C, scaling resistance up to 800 °C (highest application temperature in air). Application for oven components (sheet-metal brackets, tubes), in apparatus engineering for air preheater, annealing bells, pyrometer sheath tubes.
Equivalent material: DIN 1.4713, DIN X10CrAl7, AFNOR Z8CA7, EN 1.4713
SEW 470 Grade X10CrAlSi7 soft annealed (+A) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.65 - 7.7 g/cm³ |
SEW 470 Grade X10CrAlSi7 soft annealed (+A) thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
-100.0 °C |
Coefficient of thermal expansion of 1E-5 1/K |
- |
| - |
20.0 °C |
Coefficient of thermal expansion of 1.08E-5 1/K |
- |
| - |
100.0 °C |
Coefficient of thermal expansion of 1.13E-5 1/K |
- |
| - |
200.0 °C |
Coefficient of thermal expansion of 1.15E-5 - 1.18E-5 1/K |
- |
| - |
300.0 °C |
Coefficient of thermal expansion of 1.23E-5 1/K |
- |
| - |
400.0 °C |
Coefficient of thermal expansion of 1.2E-5 - 1.27E-5 1/K |
- |
| - |
500.0 °C |
Coefficient of thermal expansion of 1.3E-5 1/K |
- |
| - |
600.0 °C |
Coefficient of thermal expansion of 1.25E-5 - 1.32E-5 1/K |
- |
| - |
800.0 °C |
Coefficient of thermal expansion of 1.3E-5 1/K |
- |
| Max service temperature, long |
- |
Max service temperature, long of 0 - 700 °C |
- |
| Melting point |
- |
Melting point of 1425 - 1530 °C |
Typical for Ferritic Stainless Steel |
| Specific heat capacity |
20.0 °C |
Specific heat capacity of 425 - 450 J/(kg·K) |
- |
| - |
100.0 °C |
Specific heat capacity of 461 J/(kg·K) |
- |
| - |
200.0 °C |
Specific heat capacity of 489 J/(kg·K) |
- |
| - |
300.0 °C |
Specific heat capacity of 508 J/(kg·K) |
- |
| - |
400.0 °C |
Specific heat capacity of 527 J/(kg·K) |
- |
| - |
500.0 °C |
Specific heat capacity of 550 J/(kg·K) |
- |
| - |
600.0 °C |
Specific heat capacity of 579 J/(kg·K) |
- |
| - |
700.0 °C |
Specific heat capacity of 618 J/(kg·K) |
- |
| Thermal conductivity |
20.0 °C |
Thermal conductivity of 20.5 - 23 W/(m·K) |
- |
| - |
100.0 °C |
Thermal conductivity of 21.9 W/(m·K) |
- |
| - |
200.0 °C |
Thermal conductivity of 23.2 W/(m·K) |
- |
| - |
300.0 °C |
Thermal conductivity of 24.2 W/(m·K) |
- |
| - |
400.0 °C |
Thermal conductivity of 24.9 W/(m·K) |
- |
| - |
500.0 °C |
Thermal conductivity of 25 - 25.4 W/(m·K) |
- |
| - |
600.0 °C |
Thermal conductivity of 25.6 W/(m·K) |
- |
| - |
700.0 °C |
Thermal conductivity of 25.5 W/(m·K) |
- |
| Thermal diffusivity |
20.0 °C |
Thermal diffusivity of 6.3 mm²/s |
- |
| - |
100.0 °C |
Thermal diffusivity of 5.9 mm²/s |
- |
| - |
200.0 °C |
Thermal diffusivity of 5.8 mm²/s |
- |
| - |
300.0 °C |
Thermal diffusivity of 5.7 mm²/s |
- |
| - |
400.0 °C |
Thermal diffusivity of 5.4 mm²/s |
- |
| - |
500.0 °C |
Thermal diffusivity of 5 mm²/s |
- |
| - |
600.0 °C |
Thermal diffusivity of 4.4 mm²/s |
- |
| - |
700.0 °C |
Thermal diffusivity of 3.8 mm²/s |
- |
SEW 470 Grade X10CrAlSi7 soft annealed (+A) chemical
| Property |
Value |
| Aluminium |
Aluminium of 0.5 - 1 % |
| Carbon |
Carbon of 0.12 % |
| Chromium |
Chromium of 6 - 8 % |
| Manganese |
Manganese of 1 % |
| Phosphorus |
Phosphorus of 0.04 % |
| Silicon |
Silicon of 0.5 - 1 % |
| Sulfur |
Sulfur of 0.015 % |
SEW 470 Grade X10CrAlSi7 soft annealed (+A) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 7E-7 - 7.07E-7 Ω·m |
| - |
100.0 °C |
Electrical resistivity of 7.43E-7 Ω·m |
| - |
200.0 °C |
Electrical resistivity of 7.94E-7 Ω·m |
| - |
300.0 °C |
Electrical resistivity of 8.52E-7 Ω·m |
| - |
400.0 °C |
Electrical resistivity of 9.16E-7 Ω·m |
| - |
500.0 °C |
Electrical resistivity of 9.87E-7 Ω·m |
| - |
600.0 °C |
Electrical resistivity of 1.06E-6 Ω·m |
| - |
700.0 °C |
Electrical resistivity of 1.15E-6 Ω·m |
SEW 470 Grade X10CrAlSi7 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 |
- |
| Elongation |
20.0 °C |
Elongation of 20 % |
- |
| Elongation, transverse |
20.0 °C |
Elongation, transverse of 15 % |
- |
| Hardness, Brinell |
20.0 °C |
Hardness, Brinell of 192 [-] |
- |
| 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 420 - 620 MPa |
- |
| Tensile strength, transverse |
20.0 °C |
Tensile strength, transverse of 420 - 620 MPa |
- |
| Yield strength Rp0.2 |
20.0 °C |
Yield strength Rp0.2 of 220 MPa |
- |
| Yield strength Rp0.2, transverse |
20.0 °C |
Yield strength Rp0.2, transverse of 220 MPa |
- |
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