|
C
|
Mn
|
Si
|
S
|
P
|
Cr
|
Ni
|
Mo
|
Cu
|
Nb+Ta
|
保证值
|
≤0.080
|
0.5~ 2.5
|
≤0.90
|
≤0.030
|
≤0.040
|
18.0~21.0
|
9.0~11.0
|
≤0.75
|
≤0.75
|
8×C~1.00
|
例值
|
0.045
|
1.68
|
0.75
|
0.008
|
0.021
|
19.80
|
9.65
|
0.066
|
0.105
|
0.45
|
试验项目
|
Rm (N/mm2)
|
A (%)
|
保证值
|
≥520
|
≥25
|
例值
|
630
|
41
|
焊条直径(mm)
|
φ2.0
|
φ2.5
|
φ3.2
|
φ4.0
|
φ5.0
|
焊接电流(A)
|
40~80
|
50~100
|
70~130
|
100~160
|
140~200
|