C | Mn | Si | Cr | Ni | Mo | Cu | S | P |
≤0.04 | 0.5-2.5 | ≤0.90 | 17.0-20.0 | 11.0-14.0 | 2.0-3.0 | ≤0.75 | ≤0.030 | ≤0.040 |
抗拉強(qiáng)度бb(Mpa) | 伸長(zhǎng)率δ5(%) |
≥490 | ≥30 |
焊條直徑(mm) | 2.0 | 2.5 | 3.2 | 4.0 | 5.0 | |
焊接電流(A) | 300 | 300 | 350 | 400 | 400 | |
電流范圍(A) | 平焊 | 30-50 | 60-85 | 85-120 | 115-160 | 160-200 |
立仰焊 | 30-50 | 50-70 | 75-105 | 95-130 |