STAINLESS STEEL Grade 304, 304L, 304H
BM 304. S30400/EN 1.4301 S30403/EN 1.4307. S30409. Introduction: Types 304, 304L and 304H are the most versatile and widely used of all the stainless steels. Their chemical composition, mechanical properties, weldability and corrosion/oxidation resistance provide the best all-round performance stainless steels at relatively low cost.