C
|
Cr
|
Ni
|
Mo
|
Mn
|
Si
|
P
|
S
|
Cu
|
≤0.12
|
25.0-28.0
|
20.0-22.0
|
2.0-3.0
|
1.0-2.5
|
0.75
|
≤0.030
|
≤0.030
|
≤0.75
|
抗拉强度(σb) MPa
|
伸长率(δ5) %
|
≥550
|
≥25
|
焊条直径(mm)
|
2.5
|
3.2
|
4.0
|
5.0
|
焊接电流(A)
|
50-80
|
80-110
|
110-160
|
160-200
|