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EN 10263-4 Grade Cq22: Quenched & Tempered Steel for High-Strength Applications

The cold-upsettable steel Cq 22 can be cold-formed with medium to high rate of forming according to the usual forming methods on single-stage and multi-stage presses. It is used, for example, for spacer nuts, piston bolts, 5.6 screws and nuts of strength class 8.

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.85 g/cm³

Mechanical

PropertyTemperatureValueComment

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

20 - 22 %

Poisson's ratio

20.0 °C

0.28 [-]

Reduction of area

20.0 °C

50 %

Shear modulus

23.0 °C

82 GPa

Typical for Low Carbon Steel

Tensile strength

20.0 °C

500 - 700 MPa

Yield strength

20.0 °C

300 - 350 MPa

Thermal

PropertyTemperatureValueComment

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

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

56.9 W/(m·K)

100.0 °C

56.4 W/(m·K)

200.0 °C

53.5 W/(m·K)

300.0 °C

49.4 W/(m·K)

400.0 °C

45.2 W/(m·K)

500.0 °C

41.3 W/(m·K)

600.0 °C

37.6 W/(m·K)

Thermal diffusivity

20.0 °C

15.7 mm²/s

100.0 °C

14.5 mm²/s

200.0 °C

12.9 mm²/s

300.0 °C

11.2 mm²/s

400.0 °C

9.6 mm²/s

500.0 °C

7.9 mm²/s

600.0 °C

6.3 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

1.83E-7 Ω·m

100.0 °C

2.27E-7 Ω·m

200.0 °C

2.95E-7 Ω·m

300.0 °C

3.8E-7 Ω·m

400.0 °C

4.81E-7 Ω·m

500.0 °C

5.99E-7 Ω·m

600.0 °C

7.38E-7 Ω·m

Magnetic

PropertyValueComment

Curie temperature

770 °C

Typical for Low Carbon Steel

Chemical properties

PropertyValue

Carbon

0.17 - 0.24 %

Manganese

0.3 - 0.6 %

Phosphorus

0.04 %

Silicon

0.4 %

Sulfur

0.035 %


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