DIN 59470 Grade CrAl14-4 soft annealed (+A)
DIN 59470 Grade CrAl14-4 soft annealed (+A) introduction
CrAl 44 is an ferritic aluminium-chromium material (heating conductor material) used at extrem alternating temperature loading from 1250 to 1350 °C.
Application:
thin sheet as carrier material for vehicle exhaust-gas catalysts, industry furnace parts
Equivalent material: DIN 1.4725, DIN CrAl14 4, EN 1.4725
DIN 59470 Grade CrAl14-4 soft annealed (+A) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.3 g/cm³ |
DIN 59470 Grade CrAl14-4 soft annealed (+A) thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
200.0 °C |
Coefficient of thermal expansion of 1.1E-5 1/K |
- |
| - |
400.0 °C |
Coefficient of thermal expansion of 1.2E-5 1/K |
- |
| - |
600.0 °C |
Coefficient of thermal expansion of 1.3E-5 1/K |
- |
| - |
800.0 °C |
Coefficient of thermal expansion of 1.4E-5 1/K |
- |
| - |
1000.0 °C |
Coefficient of thermal expansion of 1.5E-5 1/K |
- |
| Max service temperature, long |
- |
Max service temperature, long of 1250 - 1350 °C |
- |
| Melting point |
- |
Melting point of 1425 - 1530 °C |
Typical for Ferritic Stainless Steel |
| Specific heat capacity |
20.0 °C |
Specific heat capacity of 480 J/(kg·K) |
- |
| - |
1000.0 °C |
Specific heat capacity of 650 J/(kg·K) |
- |
| Thermal conductivity |
20.0 °C |
Thermal conductivity of 15 W/(m·K) |
- |
DIN 59470 Grade CrAl14-4 soft annealed (+A) chemical
| Property |
Value |
| Aluminium |
Aluminium of 3.5 - 5 % |
| Carbon |
Carbon of 0.1 % |
| Chromium |
Chromium of 13 - 15 % |
| Manganese |
Manganese of 1 % |
| Phosphorus |
Phosphorus of 0.05 % |
| Silicon |
Silicon of 0.5 % |
| Sulfur |
Sulfur of 0.03 % |
DIN 59470 Grade CrAl14-4 soft annealed (+A) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 1.25E-6 Ω·m |
| - |
100.0 °C |
Electrical resistivity of 1.26E-6 Ω·m |
| - |
200.0 °C |
Electrical resistivity of 1.27E-6 Ω·m |
| - |
300.0 °C |
Electrical resistivity of 1.28E-6 Ω·m |
| - |
400.0 °C |
Electrical resistivity of 1.3E-6 Ω·m |
| - |
500.0 °C |
Electrical resistivity of 1.32E-6 Ω·m |
| - |
600.0 °C |
Electrical resistivity of 1.34E-6 Ω·m |
| - |
700.0 °C |
Electrical resistivity of 1.36E-6 Ω·m |
| - |
800.0 °C |
Electrical resistivity of 1.39E-6 Ω·m |
| - |
900.0 °C |
Electrical resistivity of 1.41E-6 Ω·m |
| - |
1000.0 °C |
Electrical resistivity of 1.42E-6 Ω·m |
| - |
1100.0 °C |
Electrical resistivity of 1.44E-6 Ω·m |
DIN 59470 Grade CrAl14-4 soft annealed (+A) mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
23.0 °C |
Elastic modulus of 220 GPa |
Typical for Ferritic Stainless Steel |
| Elongation |
20.0 °C |
Elongation of 8 % |
- |
| Elongation A100 |
20.0 °C |
Elongation A100 of 8 - 18 % |
- |
| 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 600 MPa |
- |
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