镍基TGF焊丝 牌号 焊丝化学成分(wt.%) C Mn Fe P S Si Cu Ni Al Ti Cr Nb(Cb)+Ta Mo 其他 TGFNiCr-3 ≤0.10 2.5-3.5 ≤3.0 ≤0.03 ≤0.015 ≤0.50 ≤0.50 ≥67.0 — ≤0.70 18.0-22.0 2.0-3.0 — ≤0.50 TGFNiCrMo-3 ≤0.10 ≤0.50 ≤5.0 ≤0.02 ≤0.015 ≤0.50 ≤0.50 ≥58.0 ≤0.40 ≤0.40 20.0-23.0 ****-4.15 8.0-10.0 ≤0.50