|
C
|
Mn
|
Si
|
S
|
P
|
Cr
|
Ni
|
Mo
|
Cu
|
保证值
|
≤0.080
|
0.50~ 2.50
|
≤1.00
|
≤0.030
|
≤0.040
|
17.0~20.0
|
11.0~14.0
|
2.0~3.0
|
≤0.75
|
试验项目
|
Rm (N/mm2)
|
A (%)
|
保证值
|
≥520
|
≥25
|
焊条直径(mm)
|
φ2.0
|
φ2.5
|
φ3.2
|
φ4.0
|
φ5.0
|
焊接电流(A)
|
40~80
|
50~100
|
70~120
|
90~160
|
160~200
|