新一代马氏体耐热钢G115的研究进展

何焕生, 余黎明, 刘晨曦, 李会军, 高秋志, 刘永长

Research Progress of a Novel Martensitic Heat-Resistant Steel G115

HE Huansheng, YU Liming, LIU Chenxi, LI Huijun, GAO Qiuzhi, LIU Yongchang

表2 G115钢氩弧焊焊丝成分[75,76] (mass fraction / %)

Table 2 Chemical compositions of G115 steel argon arc welding wire[75,76]

Number C Cr W Co Mn V Si 1 0.07-0.09 8.5-9.5 2.8-3.3 2.8-3.5 ≤ 0.70 0.18-0.25 ≤ 0.30 2 0.08-0.12 8.0-10.0 2.5-3.2 2.6-3.2 0.60-1.00 0.15-0.30 ≤ 0.50 Number Cu Nb N B Ti P S 1 ≤ 0.50 0.04-0.08 0.007-0.008 0.011-0.014 ≤ 0.001 ≤ 0.002 ≤ 0.001 2 0.70-1.10 0.02-0.10 0.005-0.010 0.002-0.010 - ≤ 0.010 ≤ 0.010