MARTENSITE STAINLESS STEEL FOR AN INJECTION-MOULDING MOULD HAVING IMPROVED CORROSION RESISTANCE

摘要

Provided is a martensite stainless steel for an injection-moulding mould having outstanding machinability and corrosion resistance which contains, as percentages by weight, from 0.03 to 0.12% of carbon, from 0.02 to 0.08% of nitrogen, from 0.3 to 0.7% of silicon, from 0.6 to 2% of manganese, from 0.001 to 0.03% of phosphorus, from 0.1 to 0.3% of sulphur, from 11.5 to 15% of chromium, from 0.05 to 1% of copper, from 0.6 to 3% of nickel and from 0.0005 to 0.003% of calcium and is produced with a balance of iron and unavoidable impurities.