c
|
mn
|
si
|
cr
|
ni
|
mo
|
cu
|
s
|
p
|
≤0.15
|
0.5-2.5
|
≤0.90
|
22.0-25.0
|
12.0-14.0
|
≤0.75
|
≤0.75
|
≤0.030
|
≤0.040
|
抗拉强度бb(mpa)
|
伸长率δ5(%)
|
≥550
|
≥25
|
焊条直径(mm)
|
2.0
|
2.5
|
3.2
|
4.0
|
5.0
|
焊接电流(a)
|
25-50
|
50-80
|
80-110
|
110-160
|
160-200
|