EN 1561 Grade GJL-250 cast condition

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Description

EN-GJL-250 is used for cast parts for general mechanical engineering, e.g. shipbuilding, machine-tools, textile machines, electrotechnical engineering, apparatus engineering, farm machines, household machines, car engineering, pumps, turbine casings, 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

7.2 g/cm³

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Mechanical

PropertyTemperatureValueComment

Compressive yield strength

20.0 °C

752 - 1054 MPa

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Compressive yield strength, 0.1%

20.0 °C

325 MPa

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Elastic modulus

20.0 °C

103 - 118 GPa

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Elongation

20.0 °C

0.3 - 0.8 %

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Flexural strength

20.0 °C

415 - 581 MPa

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Plane-Strain Fracture Toughnes

20.0 °C

20 MPa·√m

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Poisson's ratio

20.0 °C

0.24 - 0.26 [-]

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Shear modulus

23.0 °C

41 GPa

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Typical for Cast Iron

Shear strength

20.0 °C

290 MPa

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Tensile strength

20.0 °C

200 - 350 MPa

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100.0 °C

250 MPa

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200.0 °C

230 MPa

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300.0 °C

240 MPa

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400.0 °C

250 MPa

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500.0 °C

200 MPa

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600.0 °C

130 MPa

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Torsion Strength

20.0 °C

340 - 581 MPa

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Yield strength Rp0.1

20.0 °C

165 - 228 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

-100.0 °C

1E-5 1/K

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100.0 °C

1.05E-5 1/K

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200.0 °C

1.17E-5 1/K

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300.0 °C

1.2E-5 1/K

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400.0 °C

1.3E-5 1/K

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500.0 °C

1.3E-5 1/K

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600.0 °C

1.3E-5 1/K

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Melting point

1127 - 1204 °C

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Typical for Grey Cast Iron

Specific heat capacity

200.0 °C

460 J/(kg·K)

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600.0 °C

535 J/(kg·K)

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Thermal conductivity

20.0 °C

50 W/(m·K)

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100.0 °C

48.5 W/(m·K)

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200.0 °C

47.5 W/(m·K)

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300.0 °C

46.5 W/(m·K)

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400.0 °C

45 W/(m·K)

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500.0 °C

44.5 W/(m·K)

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Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

7.3E-7 - 8E-7 Ω·m

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Technological properties

Property
Processing methods

sand casting