DIN 2395-3 Grade St 44-2 Precision Tubes – Normalized & Normalized Formed (+N)
Rectangular and square welded precision tubes made from USt 37-2 are manufactured by cold forming and electrical resistance welding. Application: automotive engineering
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.85 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | -100.0 °C | 217 GPa | |
20.0 °C | 212 GPa | ||
100.0 °C | 207 GPa | ||
200.0 °C | 199 GPa | ||
300.0 °C | 192 GPa | ||
400.0 °C | 184 GPa | ||
500.0 °C | 175 GPa | ||
600.0 °C | 164 GPa | ||
Elongation | 20.0 °C | 21 % | |
Poisson's ratio | 20.0 °C | 0.28 [-] | |
Shear modulus | 23.0 °C | 82 GPa | Typical for Low Carbon Steel |
Tensile strength | 20.0 °C | 430 - 540 MPa | |
Yield strength | 20.0 °C | 275 MPa | |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | -100.0 °C | 1.08E-5 1/K | |
20.0 °C | 1.19E-5 1/K | ||
100.0 °C | 1.25E-5 1/K | ||
200.0 °C | 1.3E-5 1/K | ||
300.0 °C | 1.36E-5 1/K | ||
400.0 °C | 1.41E-5 1/K | ||
500.0 °C | 1.45E-5 1/K | ||
600.0 °C | 1.49E-5 1/K | ||
Max service temperature | 500 °C | Typical for Carbon Steel | |
Max service temperature, long | 0 - 120 °C | ||
Melting point | 1480 - 1526 °C | Typical for Low Carbon Steel | |
Specific heat capacity | -100.0 °C | 423 J/(kg·K) | |
20.0 °C | 461 J/(kg·K) | ||
100.0 °C | 479 J/(kg·K) | ||
200.0 °C | 499 J/(kg·K) | ||
300.0 °C | 517 J/(kg·K) | ||
400.0 °C | 536 J/(kg·K) | ||
500.0 °C | 558 J/(kg·K) | ||
600.0 °C | 587 J/(kg·K) | ||
Thermal conductivity | 20.0 °C | 53.4 W/(m·K) | |
100.0 °C | 52.9 W/(m·K) | ||
200.0 °C | 50.3 W/(m·K) | ||
300.0 °C | 46.7 W/(m·K) | ||
400.0 °C | 43.3 W/(m·K) | ||
500.0 °C | 39.8 W/(m·K) | ||
600.0 °C | 36.7 W/(m·K) | ||
Thermal diffusivity | 20.0 °C | 14.8 mm²/s | |
100.0 °C | 13.6 mm²/s | ||
200.0 °C | 12.1 mm²/s | ||
300.0 °C | 10.6 mm²/s | ||
400.0 °C | 9.2 mm²/s | ||
500.0 °C | 7.7 mm²/s | ||
600.0 °C | 6.2 mm²/s | ||
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 1.95E-7 Ω·m |
100.0 °C | 2.42E-7 Ω·m | |
200.0 °C | 3.14E-7 Ω·m | |
300.0 °C | 4.02E-7 Ω·m | |
400.0 °C | 5.02E-7 Ω·m | |
500.0 °C | 6.21E-7 Ω·m | |
600.0 °C | 7.55E-7 Ω·m | |
Magnetic
| Property | Value | Comment |
|---|---|---|
Curie temperature | 770 °C | Typical for Low Carbon Steel |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.24 % |
Nitrogen | 0.01 % |
Phosphorus | 0.06 % |
Sulfur | 0.06 % |
Metal
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