Characteristics of Corrosion Related to Ash Deposition on Boiler Heating Surface during Cofiring of Coal and Biomass

Table 3

Elemental composition of the heating surface metal (%).

Steel	C	S	P	Si	Mn	Cr	Mo	V	Cu	Ni
12CrMoVG	0.08∼0.15	≤0.03	≤0.03	0.17∼0.37	0.40∼0.70	0.90∼1.20	0.25∼0.35	0.15∼0.30	≤0.20	≤0.25
20G	0.17∼0.24	≤0.03	≤0.03	0.17∼0.37	0.35∼0.65	–	–	–	–	–
T91	0.08∼0.12	≤0.02	≤0.02	0.02∼0.50	0.30∼0.60	8.00∼9.50	0.85∼1.05	0.18∼0.25	–	≤0.40