Esterer Gießerei - Ni-Resist / austenitic cast iron (EN-GJLA/EN-GJSA)

Ni-Resist, also called austenitic cast iron, is a high-alloyed material with an austenitic structure.

The material contains nickel, manganese and partly copper and chromium, whereas copper and chromium are used for stabilising the austenitic structure at room temperature.
Carbon is contained either in the form of flake-graphite or spheroidal graphite.
Here the cast iron type with spheroidal graphite shows better mechanical values.

The high share of nickel with a value of more than 20 per cent is responsible for the high resistance towards corrosion and it improves the tensile strength and the expansion characteristics of the material.

Construction parts made of Ni-Resist are used when characteristics as scaling and erosion resistance, resistance against sea water and alkaline media or a not-magnetisable material are needed.

Some types of the materials are registered for construction parts for punch-out machines according to EU-directive 97/23/EC.

Further information can be obtained from the norm DIN EN 13835.