DUAL-PHASE STAINLESS STEEL WITH IMPROVED RESISTANCE TO CORROSION BY NITRIC ACID

摘要

A dual-phase stainless steel exhibiting improved resistance to corrosion caused by nitric acid is disclosed, which consists essentially of: C: not more than 0.02% by weight, Si: 2-6% by weight, Mn: 0.1-2% by weight, Cr: 20-35% by weight, Ni: 3-27% by weight, P: not more than 0.02% by weight, N: not more than 0.30% by weight, Fe and incidental impurities: balance the amount of ferrite to be 30-70% by volume.