|
c
|
mn
|
si
|
s
|
p
|
cr
|
ni
|
mo
|
cu
|
保证值
|
≤0.15
|
0.50~ 2.50
|
≤0.90
|
≤0.030
|
≤0.040
|
22.0~25.0
|
12.0~14.0
|
≤0.75
|
≤0.75
|
例值
|
0.057
|
1.30
|
0.22
|
0.007
|
0.022
|
23.43
|
12.82
|
0.12
|
0.12
|
试验项目
|
rm
(n/mm2)
|
a
(%)
|
保证值
|
≥550
|
≥25
|
例值
|
600
|
38
|
焊条直径(mm)
|
f2.0
|
f2.5
|
f3.2
|
f4.0
|
f5.0
|
焊接电流(a)
|
40~80
|
50~100
|
70~120
|
90~160
|
140~200
|