EN 10263-4 Grade 22B2 Steel: Cold‑Drawn, Annealed for Spheroidized Carbides & Skin Pass
The cold-upsettable steel 22 B 2 can be cold-formed with a medium to high rate of forming according to the usual forming methods. It is used for screws, bolts and pressed parts of strength class 8.8 in the thick and medium dimension range.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.82 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 | ||
Poisson's ratio | 20.0 °C | 0.29 [-] | Typical for Low Carbon Steel |
Reduction of area | 20.0 °C | 66 % | |
Tensile strength | 20.0 °C | 480 - 500 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 | ||
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 | 39.6 W/(m·K) | |
100.0 °C | 41 W/(m·K) | ||
200.0 °C | 41 W/(m·K) | ||
300.0 °C | 39.9 W/(m·K) | ||
400.0 °C | 38.1 W/(m·K) | ||
500.0 °C | 35.9 W/(m·K) | ||
600.0 °C | 33.6 W/(m·K) | ||
Thermal diffusivity | 20.0 °C | 11 mm²/s | |
100.0 °C | 10.6 mm²/s | ||
200.0 °C | 9.9 mm²/s | ||
300.0 °C | 9 mm²/s | ||
400.0 °C | 8.1 mm²/s | ||
500.0 °C | 6.9 mm²/s | ||
600.0 °C | 5.7 mm²/s | ||
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 2.63E-7 Ω·m |
100.0 °C | 3.12E-7 Ω·m | |
200.0 °C | 3.85E-7 Ω·m | |
300.0 °C | 4.7E-7 Ω·m | |
400.0 °C | 5.71E-7 Ω·m | |
500.0 °C | 6.88E-7 Ω·m | |
600.0 °C | 8.25E-7 Ω·m | |
Magnetic
| Property | Value | Comment |
|---|---|---|
Curie temperature | 770 °C | Typical for Low Carbon Steel |
Chemical properties
| Property | Value |
|---|---|
Boron | 1E-3 - 5E-3 % |
Carbon | 0.19 - 0.25 % |
Manganese | 0.5 - 0.8 % |
Phosphorus | 0.04 % |
Silicon | 0.4 % |
Sulfur | 0.035 % |
Metal
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