C
|
Cr
|
Ni
|
Mo
|
Mn
|
Si
|
S
|
P
|
Cu
|
≤0.08
|
18.0-21.0
|
9.0-11.0
|
≤0.75
|
0.5-2.5
|
≤0.90
|
≤0.030
|
≤0.035
|
≤0.75
|
σb MPa
|
δ5 %
|
≥550
|
≥35
|
焊条直径(mm)
|
2.5
|
3.2
|
4.0
|
5.0
|
参考电流(A)
|
50-80
|
80-110
|
110-160
|
160-200
|
C
|
Cr
|
Ni
|
Mo
|
Mn
|
Si
|
S
|
P
|
Cu
|
Nb
|
≤0.08
|
18.0-21.0
|
9.0-11.0
|
≤0.75
|
0.5-2.5
|
≤0.90
|
≤0.030
|
≤0.035
|
≤0.75
|
8×C-1.0
|
σb MPa
|
δ5 %
|
≥520
|
≥25
|
焊条直径(mm)
|
2.5
|
3.2
|
4.0
|
5.0
|
参考电流(A)
|
50-80
|
80-110
|
110-160
|
160-200
|
C
|
Cr
|
Ni
|
Mo
|
Mn
|
Si
|
S
|
P
|
Cu
|
Nb
|
≤0.08
|
18.0-21.0
|
9.0-11.0
|
≤0.75
|
0.5-2.5
|
≤0.90
|
≤0.030
|
≤0.035
|
≤0.75
|
8×C-1.0
|
σb MPa
|
δ5 %
|
≥520
|
≥25
|
焊条直径(mm)
|
2.5
|
3.2
|
4.0
|
5.0
|
参考电流(A)
|
50-80
|
80-110
|
110-160
|
160-200
|
C
|
Cr
|
Ni
|
Mo
|
Mn
|
Si
|
S
|
P
|
Cu
|
≤0.08
|
17.0-20.0
|
11.0-14.0
|
2.0-3.0
|
0.5-2.5
|
≤0.90
|
≤0.030
|
≤0.035
|
≤0.75
|
σb MPa
|
δ5 %
|
≥520
|
≥30
|
焊条直径(mm)
|
2.5
|
3.2
|
4.0
|
5.0
|
参考电流(A)
|
50-80
|
80-110
|
110-160
|
160-200
|
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