一种纯固溶强化型耐热合金C‑HRA‑2埋弧焊 用实芯焊丝，属于耐热合金焊接材料技术领域。 所述的实芯焊丝分重量百分比 为 ：C : 0 .0 6‑ 0 .12％；Si≤1 .0％；Mn≤1 .0％；P≤0 .015％；S≤ 0 .001％；Cr:20‑22％；Co:10‑13％；Mo:8 .1‑ 8 .8％ ；W : 0 .1 ‑ 1 .0％ ；N≤ 0 .0 0 2 5％ ；O≤ 0 .0025％；Fe≤0 .1％；余量为Ni及不可避免的杂 质元素。优点在于，抗热裂纹敏感性提高90％，从 根本上消除了该类合金的焊接应变时效裂纹，焊 接过程工艺性好，易于脱渣，焊缝成形美观、表面 无粘渣、凹坑等缺陷；焊接工艺性能优良，焊缝金 属流动性好，焊缝成形性好，成本低。

The utility model relates to a solid core welding wire for submerged arc welding of a pure solid solution strengthening heat-resistant alloy C {HRA} 2, which belongs to the technical field of heat-resistant alloy welding materials. The weight percentage of solid core welding wire is: C: 0.06-0.12%; Si≤1 .0％； Mn≤1 .0％； P≤0 .015％； S≤ 0 .001％； Cr:20‑22％； Co:10‑13％； Mo:8 .1‑ 8 .8％ ； W : 0 .1 ‑ 1 .0％ ； N≤ 0 .0 0 2 5％ ； O≤ 0 .0025％； Fe≤0 .1％； The residual is Ni and unavoidable impurity elements. The advantages are that the sensitivity of hot crack resistance is increased by 90%, and the welding strain aging crack of this kind of alloy is eliminated fundamentally. The welding process has good processability, easy slag removal, beautiful weld formation, no slag sticking, pits and other defects on the surface; The welding process has excellent performance, good weld metal fluidity, good weld formability and low cost.