C | Mn | Si | Cr | Ni | Nb | Mo | Cu | S | P | |
保證值 | ≤0.08 | 0.5-2.5 | ≤0.90 | 18.0-21.0 | 9.0-11.0 | 8xC-1.00 | ≤0.75 | ≤0.75 | ≤0.030 | ≤0.040 |
典型值 | 0.044 | 0.90 | 0.80 | 19.80 | 9.80 | 0.60 | 0.20 | 0.30 | 0.010 | 0.028 |
抗拉強(qiáng)度бb(Mpa) | 伸長率δ5(%) |
≥520 | ≥25 |
焊條直徑(mm) | 2.0 | 2.5 | 3.2 | 4.0 | 5.0 | |
焊縫長度(mm) | 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 |