EN 12513 Grade GJN-HV550

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EN-GJN-HV550 consists of eutectical carbides of type M3C (M=Fe, Cr) in a matrix, which contains mostly martensite and sometimes bainite and austenite. The comparable G-X 330 NiCr 4 2 acc. DIN 1695 : 1981-09 (invalid) is characterised by a high wear resistance and applicable at moderate impact stress. The correlation between thickness of cast iron and chemical composition exist: - Thickness of cast iron up to 25 mm: Si:0,50%, Mn:0,40%, Ni:3,4%, Cr:1,8% - Thickness of cast iron > 25 bis 50 mm: Si:0,40%, Mn:0,50%, Ni:3,8%, Cr:2,0% - Thickness of cast iron > 50 bis 100 mm: Si:0,40%, Mn0,50%, Ni:4,2%, Cr:2,5% - Thickness of cast iron > 100 mm: Si:0,40%,Mn:0,60%,Ni:4,5%,Cr:3,0%. For thicknesses far 100 mm it is recommended to increase the Ni-content. Cast parts made of cast iron with 4 % Ni and 2 % Cr are mostly delivered and used as unfinished casting (naturally hard)

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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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23.0 °C

7.6 - 7.77 g/cm³

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Typical for White Cast Iron



Elastic modulus

23.0 °C

165 - 240 GPa

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Typical for White Cast Iron

Hardness, Vickers

20.0 °C

550 [-]

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Poisson's ratio

23.0 °C

0.27 [-]

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Typical for Cast Iron

Shear modulus

23.0 °C

41 GPa

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Typical for Cast Iron



Coefficient of thermal expansion

23.0 °C

1.5E-5 1/K

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Typical for White Cast Iron

Melting point

1209 °C

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Typical for White Cast Iron

Specific heat capacity

23.0 °C

460 J/(kg·K)

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Typical for White Cast Iron

Thermal conductivity

23.0 °C

22 - 30 W/(m·K)

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Typical for White Cast Iron

Chemical properties



3 - 3.6 %

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1.5 - 3 %

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0.8 %

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3 - 5.5 %

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0.1 %

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0.8 %

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0.1 %

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