? | C | Mn | Si | Cr | Ni | Mo | Cu | S | P |
保證值 | ≤0.15 | 0.5-2.5 | ≤0.90 | 22.0-25.0 | 12.0-14.0 | ≤0.75 | ≤0.75 | ≤0.030 | ≤0.040 |
典型值 | 0.064 | 0.80 | 0.70 | 24.00 | 12.50 | 0.40 | 0.20 | 0.010 | 0.030 |
? | 抗拉強(qiáng)度бb(Mpa) | 伸長率δ5(%) |
保證值 | ≥550 | ≥25 |
典型值 | 590 | 40 |
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 |
焊接電流(A) | 25-50 | 50-80 | 80-110 | 110-160 | 160-180 |