Stainless steel EN DIN 1.4057 / DIN X17CrNi16-2 / AISI 431
The steel grade DIN 1.4057 ( also called ASTM 431 ) is a high tensile strength martensitic stainless steel with good
machinability. The steel suits good for production of corrosion resistance details by machining, and where the steel needs
to be resistive to strong oxidizing acids e.g. nitric acid. The steel is magnetic and in the quenched and tempered condition.
Some typical application areas for 1.4057:
Pump- and Valve parts
Chemical composition ( % )
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