STEEL EXCELLENT IN RESISTANCE TO SULFURIC ACID DEW POINT CORROSION

摘要

Provided is a steel material which may have excellent corrosion resistance in a sulfuric acid dew point corrosion circumstance by an exhaust gas originated from the burning of a high S containing fuel. A steel excellent in the resistance to sulfuric acid dew point corrosion which has a chemical composition, in mass %, that C: = 0.010 %, Si: = 0.10 %, Cu: 0.05 to 1.00 %, P: = 0.030 %, S = 0.050 %, Al: = 0.10 %, and the balance: Fe and inevitable impurities. Preferably, the steel further comprises one or more of Sb, Sn, Cr, Mn, Mo, Ni, Nb, V, Ti and B.