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发明公开
CN103240542A 超低氢高韧性低碳加钨耐热钢焊条 有权

超低氢高韧性低碳加钨耐热钢焊条
摘要：
本发明公开了一种超低氢高韧性低碳加钨耐热钢焊条，焊条的熔敷金属化学成分的重量百分比为：C：0.015～0.065%，Si：0.15～0.5%，Mn：0.35～0.80%，P≤0.015%，S≤0.010%，Cr:0.65～1.35%，Mo:0.30～0.55%，V:0.05～0.35%，W:0.1～0.60%；余量为杂质。采用本发明超低氢高韧性低碳加钨耐热钢焊条，能够有效的控制焊缝金属中扩散氢的含量，提高焊缝金属塑、韧性以及抗裂性的同时，保证焊缝金属的常温和高温强度匹配；能够在常温环境下焊接12Cr1MoV钢，不会出现焊接冷裂纹，焊前不需预热和焊后不需后热消氢处理，能够有效实现节能减排、改善焊工作业条件、降低焊工劳动强度、缩短产品制造周期，带来显著的经济效益。
摘要（英）：

The invention discloses an ultralow-hydrogen high-toughness low-carbon tungsten-adding heat-resistant steel welding rod. The welding rod includes, by weight, deposited metal chemical components which are 0.015-0.065% of C, 0.15-0.5% of Si, 0.35-0.80% of Mn, no more than 0.015% of P, no more than 0.10% of S, 0.65-1.35% of Cr, 0.30-0.55% of Mo, 0.05-0.35% of V, 0.1-0.60% of W, and the balance sundries. By adopting the ultralow-hydrogen high-toughness low-carbon tungsten-adding heat-resistant steel welding rod, content of diffusible hydrogen in weld metal can be effectively controlled, normal-temperature and high-temperature strength matching of the weld metal is guaranteed while the weld metal plasticity, toughness and crack resistance are improved; 12Cr1MoV steel can be welded under a normal temperature environment, welding cold cracks do not occur, pre-heating is not required prior to welding, postheat hydrogen removal treatment is not required after welding, energy saving and emission reduction can be effectively achieved, operating conditions can be improved for welding operators, labor intensity of the welding operators is reduced, a product manufacturing period is shortened, and remarkable economic benefit is generated.

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