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DIN EN 1561 Grey Cast Iron

This European Standard DIN-EN-1561 specifies the properties of unalloyed and low-alloyed grey cast iron used for castings, which have been manufactured in sand moulds or in moulds with comparable thermal behavior. This standard specifies the characterizing properties of grey cast iron by either:

a) the tensile strength of separately cast samples, or if agreed by the manufacturer and the purchaser by the time of acceptance of the order, of cast-on samples or samples cut from a casting;
or

b) if agreed by the manufacturer and the purchaser by the time of acceptance of the order, the hardness of the material measured on castings or on a cast-on knob.

Mechanical properties

In addition to EN 1559-1 and EN 1559-3 the order should specify in an unambiguous manner as to whether the tensile strength measured on separately cast samples or the Brinell hardness measured on the casting is the characterizing property. If it does not do so, then the manufacturer shall characterize the material according to tensile strength.

The characterizing property shall be checked only when this has been agreed by the time of acceptance of the order. The following Table 1 is the tensile strength of grey cast iron, Table 2 is Brinell hardness of castings of grey cast iron.

 

This is the list of grey cast iron grades used in this standard correlated with those used previously in DIN 1691.

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