STAINLESS STEEL FOR HOT FORGING, AND HOT FORGING METHOD USING SAID STEEL

摘要

A micro-alloyed austenitic stainless steel for hot forging is provided. The micro-alloyed austenitic stainless steel has the following composition in weight %: 16.0%≦̸Cr≦̸25.0%; 8.0%≦̸Ni≦̸25.0%; traces≦̸Mo≦̸6.0%; traces≦̸C≦̸0.08%; traces≦̸Si≦̸1.0%; traces≦̸Mn≦̸3.0%; traces≦̸P 21 0.045%; traces≦̸S≦̸0.035%; traces≦̸Cu≦̸2.0%; traces≦̸N≦̸0.2%; traces≦̸V≦̸0.3%; traces≦̸Ti≦̸0.3%; traces≦̸B≦̸0.005%; traces≦̸W≦̸3.0%; 0.015%≦̸Nb≦̸0.100%, the remainder being iron and inevitable manufacturing impurities.