DIN 1691 Grade GG-20

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GG-20, for shape pieces different kind, fine and art casting, cooker, furnaces, heating elements. Comparable with UNS F 12101 of the USA.

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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20.0 °C

7.15 g/cm³

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Elastic modulus

20.0 °C

88 - 113 GPa

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Hardness, Brinell

20.0 °C

235 - 285 [-]

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Plane-Strain Fracture Toughnes

20.0 °C

12.6 MPa·√m

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Poisson's ratio

20.0 °C

0.26 [-]

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Shear modulus

23.0 °C

41 GPa

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Typical for Cast Iron

Tensile strength

20.0 °C

115 - 300 MPa

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Coefficient of thermal expansion

23.0 °C

1.1E-5 - 1.5E-5 1/K

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Typical for Grey Cast Iron

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

23.0 °C

20 - 80 W/(m·K)

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Typical for Grey Cast Iron



Electrical resistivity

20.0 °C

7.7E-7 Ω·m

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