C
|
Mn
|
Si
|
Cr
|
B
|
S
|
P
|
≤1.00
|
≤0.80
|
1.50~3.00
|
6.50~8.50
|
0.50~0.90
|
≤0.03
|
≤0.03
|
焊絲直徑/mm
|
1.2
|
1.4
|
1.6
|
焊接電流/A
|
180~220
|
200~240
|
220~260
|