简要说明：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。

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