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EN 10277-2 S355J2G3C Cold-Drawn High-Tensile Steel for Folding & Cold Forming

S255J2G3C is used for folding, cold forming and cold drawing grade. The high-tensile fine grained steel is applicated for welding constructions of dynamic load at temperatures up to -20 °C. Compared to S235J2G3C is achievable a considerable material saving due to its by 120 MPa higher yield point. The steel shows compared to S235J2G3 a by 15% higher resistance to mineral sliding wear. Max. product thickness accounts 20 mm for folding grades and 8 mm for cold forming grades. As a bright steel product it is used in the form of bars, bright, straight, in various conditions (see DIN EN 10277 : 1999-10).

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.85 g/cm³

Mechanical

PropertyTemperatureValueComment

Elastic modulus

20.0 °C

210 GPa

100.0 °C

205 GPa

200.0 °C

195 GPa

300.0 °C

185 GPa

400.0 °C

175 GPa

Elongation

20.0 °C

6 - 9 %

Poisson's ratio

23.0 °C

0.29 [-]

Typical for Low Carbon Steel

Shear modulus

20.0 °C

81 GPa

Tensile strength

20.0 °C

490 - 950 MPa

Yield strength Rp0.2

20.0 °C

315 - 520 MPa

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

100.0 °C

1.11E-5 1/K

200.0 °C

1.21E-5 1/K

300.0 °C

1.29E-5 1/K

400.0 °C

1.35E-5 1/K

Max service temperature

500 °C

Typical for Carbon Steel

Max service temperature, long

-20 - 0 °C

Melting point

1480 - 1526 °C

Typical for Low Carbon Steel

Specific heat capacity

20.0 °C

450 J/(kg·K)

Thermal conductivity

20.0 °C

54 W/(m·K)

100.0 °C

50.7 W/(m·K)

200.0 °C

46.9 W/(m·K)

300.0 °C

41.5 W/(m·K)

400.0 °C

39.4 W/(m·K)

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

2E-7 Ω·m

Magnetic

PropertyValueComment

Curie temperature

770 °C

Typical for Low Carbon Steel

Chemical properties

PropertyValue

Carbon

0.2 %

Manganese

1.6 %

Phosphorus

0.04 %

Silicon

0.55 %

Sulfur

0.035 %


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