DIN 1630 Grade St 44.4 hot worked, normalized
DIN 1630 Grade St 44.4 hot worked, normalized introduction
Seamless tubes made from St 44.4 are used in the apparatus engineering, container and pipe construction as well as mechanical engineering. Operating temperature max. 300 °C, the allowed pressure is unlimited.
The steel is weldable.
Equivalent material: JIS STS42-s, ASTM Grade II, DIN 1.0257, DIN St 44-4, AFNOR TU E 250, BS P275T2, JIS STS410, EN P275T2, EN 1.0257, ASTM Grade B
DIN 1630 Grade St 44.4 hot worked, normalized general
| Property |
Temperature |
Value |
Comment |
| Density |
20.0 °C |
Density of 7.8 - 7.9 g/cm³ |
Typical for Low Carbon Steel |
DIN 1630 Grade St 44.4 hot worked, normalized thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
-100.0 °C |
Coefficient of thermal expansion of 1.08E-5 1/K |
- |
| - |
20.0 °C |
Coefficient of thermal expansion of 1.19E-5 1/K |
- |
| - |
100.0 °C |
Coefficient of thermal expansion of 1.25E-5 1/K |
- |
| - |
200.0 °C |
Coefficient of thermal expansion of 1.3E-5 1/K |
- |
| - |
300.0 °C |
Coefficient of thermal expansion of 1.36E-5 1/K |
- |
| - |
400.0 °C |
Coefficient of thermal expansion of 1.41E-5 1/K |
- |
| - |
500.0 °C |
Coefficient of thermal expansion of 1.45E-5 1/K |
- |
| - |
600.0 °C |
Coefficient of thermal expansion of 1.49E-5 1/K |
- |
| Max service temperature, long |
- |
Max service temperature, long of 0 - 300 °C |
- |
| Melting point |
- |
Melting point of 1480 - 1526 °C |
Typical for Low Carbon Steel |
| Specific heat capacity |
-100.0 °C |
Specific heat capacity of 423 J/(kg·K) |
- |
| - |
20.0 °C |
Specific heat capacity of 461 J/(kg·K) |
- |
| - |
100.0 °C |
Specific heat capacity of 479 J/(kg·K) |
- |
| - |
200.0 °C |
Specific heat capacity of 499 J/(kg·K) |
- |
| - |
300.0 °C |
Specific heat capacity of 517 J/(kg·K) |
- |
| - |
400.0 °C |
Specific heat capacity of 536 J/(kg·K) |
- |
| - |
500.0 °C |
Specific heat capacity of 558 J/(kg·K) |
- |
| - |
600.0 °C |
Specific heat capacity of 587 J/(kg·K) |
- |
| Thermal conductivity |
20.0 °C |
Thermal conductivity of 53.4 W/(m·K) |
- |
| - |
100.0 °C |
Thermal conductivity of 52.9 W/(m·K) |
- |
| - |
200.0 °C |
Thermal conductivity of 50.3 W/(m·K) |
- |
| - |
300.0 °C |
Thermal conductivity of 46.7 W/(m·K) |
- |
| - |
400.0 °C |
Thermal conductivity of 43.3 W/(m·K) |
- |
| - |
500.0 °C |
Thermal conductivity of 39.8 W/(m·K) |
- |
| - |
600.0 °C |
Thermal conductivity of 36.7 W/(m·K) |
- |
| Thermal diffusivity |
20.0 °C |
Thermal diffusivity of 14.8 mm²/s |
- |
| - |
100.0 °C |
Thermal diffusivity of 13.6 mm²/s |
- |
| - |
200.0 °C |
Thermal diffusivity of 12.1 mm²/s |
- |
| - |
300.0 °C |
Thermal diffusivity of 10.6 mm²/s |
- |
| - |
400.0 °C |
Thermal diffusivity of 9.2 mm²/s |
- |
| - |
500.0 °C |
Thermal diffusivity of 7.7 mm²/s |
- |
| - |
600.0 °C |
Thermal diffusivity of 6.2 mm²/s |
- |
DIN 1630 Grade St 44.4 hot worked, normalized chemical
| Property |
Value |
| Aluminium |
Aluminium of 0.02 % |
| Carbon |
Carbon of 0.2 % |
| Manganese |
Manganese of 0.4 % |
| Phosphorus |
Phosphorus of 0.04 % |
| Silicon |
Silicon of 0.35 % |
| Sulfur |
Sulfur of 0.04 % |
DIN 1630 Grade St 44.4 hot worked, normalized magnetic
| Property |
Value |
Comment |
| Curie temperature |
Curie temperature of 770 °C |
Typical for Low Carbon Steel |
DIN 1630 Grade St 44.4 hot worked, normalized electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 1.95E-7 Ω·m |
| - |
100.0 °C |
Electrical resistivity of 2.42E-7 Ω·m |
| - |
200.0 °C |
Electrical resistivity of 3.14E-7 Ω·m |
| - |
300.0 °C |
Electrical resistivity of 4.02E-7 Ω·m |
| - |
400.0 °C |
Electrical resistivity of 5.02E-7 Ω·m |
| - |
500.0 °C |
Electrical resistivity of 6.21E-7 Ω·m |
| - |
600.0 °C |
Electrical resistivity of 7.55E-7 Ω·m |
DIN 1630 Grade St 44.4 hot worked, normalized mechanical
| Property |
Temperature |
Value |
| Elastic modulus |
-100.0 °C |
Elastic modulus of 217 GPa |
| - |
20.0 °C |
Elastic modulus of 212 GPa |
| - |
100.0 °C |
Elastic modulus of 207 GPa |
| - |
200.0 °C |
Elastic modulus of 199 GPa |
| - |
300.0 °C |
Elastic modulus of 192 GPa |
| - |
400.0 °C |
Elastic modulus of 184 GPa |
| - |
500.0 °C |
Elastic modulus of 175 GPa |
| - |
600.0 °C |
Elastic modulus of 164 GPa |
| Elongation |
20.0 °C |
Elongation of 21 % |
| Elongation, transverse |
20.0 °C |
Elongation, transverse of 19 % |
| Poisson's ratio |
20.0 °C |
Poisson's ratio of 0.28 [-] |
| Tensile strength |
20.0 °C |
Tensile strength of 420 - 550 MPa |
| Tensile strength, transverse |
20.0 °C |
Tensile strength, transverse of 420 - 550 MPa |
| Yield strength |
20.0 °C |
Yield strength of 255 - 275 MPa |
| Yield strength Rp0.2 |
50.0 °C |
Yield strength Rp0.2 of 255 - 275 MPa |
| - |
200.0 °C |
Yield strength Rp0.2 of 200 - 215 MPa |
| - |
250.0 °C |
Yield strength Rp0.2 of 180 - 195 MPa |
| - |
300.0 °C |
Yield strength Rp0.2 of 155 - 165 MPa |
| Yield strength, transverse |
20.0 °C |
Yield strength, transverse of 255 - 275 MPa |
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