EN 10213 Grade G20Mo5 quenched and tempered (+QT)

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Description

Material G20Mo5 is equivalent to trademark GS-22 Mo 4 acc. to DIN 17245-87. It is used at room temperature and increased temperatures. The DIN-make is used for turbine parts at temperatures from 300 to 450 °C and mean pressure, e.g. for casings and fittings.

Related Standards

Equivalent Materials

This material data has been provided by WIAM.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.85 g/cm³

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Mechanical

PropertyTemperatureValueComment

Elastic modulus

20.0 °C

211 GPa

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100.0 °C

204 GPa

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200.0 °C

196 GPa

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300.0 °C

186 GPa

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400.0 °C

177 GPa

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500.0 °C

164 GPa

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600.0 °C

127 GPa

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Elongation

20.0 °C

22 %

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Poisson's ratio

23.0 °C

0.29 [-]

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Typical for Molybdenum Steel

Tensile strength

20.0 °C

440 - 590 MPa

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Yield strength Rp0.2

20.0 °C

245 MPa

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200.0 °C

190 MPa

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300.0 °C

165 MPa

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350.0 °C

155 MPa

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400.0 °C

150 MPa

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450.0 °C

145 MPa

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500.0 °C

135 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

100.0 °C

1.22E-5 - 1.24E-5 1/K

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200.0 °C

1.29E-5 1/K

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300.0 °C

1.31E-5 - 1.34E-5 1/K

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400.0 °C

1.39E-5 1/K

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500.0 °C

1.38E-5 - 1.43E-5 1/K

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600.0 °C

1.46E-5 1/K

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Max service temperature, long

300 - 610 °C

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Melting point

1382 - 1529 °C

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Typical for Molybdenum Steel

Specific heat capacity

20.0 °C

460 J/(kg·K)

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Thermal conductivity

20.0 °C

50 W/(m·K)

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50.0 °C

43 W/(m·K)

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300.0 °C

46 W/(m·K)

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400.0 °C

42 W/(m·K)

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500.0 °C

38 W/(m·K)

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600.0 °C

34 W/(m·K)

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Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

1.6E-7 Ω·m

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Chemical properties

PropertyValue

Carbon

0.15 - 0.23 %

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Chromium

0.3 %

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Copper

0.3 %

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Manganese

0.5 - 1 %

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Molybdenum

0.4 - 0.6 %

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Nickel

0.4 %

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Phosphorus

0.03 %

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Silicon

0.6 %

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Sulfur

0.02 %

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Vanadium

0.05 %

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