产品简介：耐热钢在高温下具有化学稳定性和足够的强度，并有抗气蚀的能力。耐热钢焊条可分为珠光体钢、马氏体钢、铁素体钢和奥氏体钢焊条。珠光体耐热钢焊条一般焊前要预热，焊后进行回火处理。详细描述牌号\\化学成分 C Mn Si Cr Mo V W Nb Ni S P R102 ≤0.12 ≤0.6 ≤0.4 0.4-0.60 ≤0.035 ≤0.035 R107 ≤0.12 0.5-0.9 ≤0.5 0.4-0.65 ≤0.035 ≤0.035 R202 ≤0.12 0.5-0.9 ≤0.5 0.4-0.65 0.4-0.65 ≤0.035 ≤0.035 R207 ≤0.12 0.5-0.9 ≤0.5 0.4-0.65 0.4-0.65 ≤0.035 ≤0.035 R302 ≤0.12 ≤0.9 ≤0.5 1-1.5 0.4-0.6 ≤0.035 ≤0.035 R307 ≤0.12 ≤0.9 ≤0.5 0.8-1.2 0.4-0.65 ≤0.035 ≤0.035 R310 ≤0.12 ≤0.9 ≤0.5 1-1.5 0.4-0.65 0.1-0.35 ≤0.035 ≤0.035 R312 ≤0.12 ≤0.9 ≤0.5 1-1.5 0.4-0.65 0.1-0.35 ≤0.035 ≤0.035 R317 ≤0.12 0.5-0.9 ≤0.5 1-1.5 0.4-0.65 0.1-0.35 ≤0.035 ≤0.035 R327 ≤0.12 0.7-1.1 ≤0.5 1-1.5 0.7-1.1 0.25-0.35 0.25-0.5 ≤0.035 ≤0.035 R337 ≤0.12 0.5-1.0 ≤0.5 1-1.5 0.7-1 0.15-0.4 0.1-0.25 ≤0.035 ≤0.035 R402 ≤0.12 ≤0.9 ≤0.5 2-2.5 0.9-1.2 ≤0.035 ≤0.035 R407 ≤0.12 0.5-0.9 ≤0.5 2-2.5 0.9-1.2 ≤0.035 ≤0.035 R427 ≤0.12 0.5-0.9 ≤0.5 2.4-3 0.8-1.1 0.2-0.4 0.3-0.55 0.1-0.25 ≤0.035 ≤0.035 R507 ≤0.12 0.5-0.9 ≤0.5 4.5-6 0.4-0.7 0.1-0.35 ≤0.035 ≤0.035 R707 ≤0.15 0.5-1.0 ≤0.5 8.5-10 0.7-1.0 ≤0.035 ≤0.035 R717 ≤0.12 0.6-1.2 ≤0.5 8-9.5 0.8-1.1 0.15-0.4 0.02-0.08 0.4-1.0 ≤0.030 ≤0.035 R807 ≤0.15 0.5-1 ≤0.5 9.5-11.5 0.6-0.9 0.2-0.4 0.6-0.9 ≤0.030 ≤0.035 R817 ≤0.19 0.5-1 ≤0.5 9.5-12 0.8-1.1 0.2-0.4 0.4-0.7 0.4-1.1 ≤0.030 ≤0.035