Introduction:H08MnMoA is a kind of low-alloy high-strength steel copper-plated submerged arc welding wire. By cooperating with corresponding welding fluxes, the product has excellent weld seam performance, the electric arc combustion is stable, the slag is easily removed, and the weld seams have quite good crack resistance and excellent low-temperature impact toughness.
Application: It is widely applied to welding of low-alloy high-strength steel (for example, Q390, Q420 and Q460) in automobiles, hoisting machinery, transportation machinery, engineering machinery, ships, power stations, petrochemicals, bridges, pressure containers, etc.. Partial matched weld fluxes: sintered flux: SJ101, SJ107, SJ301 and SJ501; and fused fluxes: HJ250, HJ350, HJ431, etc.
Chemical Compositions of Welding Wire：%
|
C
|
Mn
|
Si
|
P
|
S
|
Cr
|
Ni
|
Cu
|
Mo
|
Ti
|
|
|
Example Value
|
0.08
|
1.34
|
0.14
|
0.015
|
0.013
|
0.021
|
0.011
|
0.14
|
0.38
|
0.06
|
|
Range
|
≤0.10
|
1.20~1.60
|
≤0.25
|
≤0.030
|
≤0.030
|
≤0.20
|
≤0.30
|
≤0.20
|
0.30~0.50
|
≤0.15
|
Note: When the surface of welding wires is copper-plated, the copper content should not be more than 0.35%
|
Welding Wire Specification mm
|
Welding Current A
|
Electric Arc Voltage V
|
Current Type
|
Welding Speed
m/h
|
Extended Length of Welding Wire mm
|
Inter-Pass Temperature℃
|
Post-Welding Heat Treatment Temperature℃
|
|
|
1.6
|
250~350
|
26~29
|
DC or AC
|
18
|
±1.5
|
13~19
|
150±15
|
620±15
|
|
2.0
|
300~400
|
26~29
|
DC or AC
|
18
|
±1.5
|
13~19
|
150±15
|
620±15
|
|
2.5
|
350~450
|
27~30
|
DC or AC
|
20
|
±1.5
|
19~32
|
150±15
|
620±15
|
|
3.0
|
400~500
|
27~30
|
DC or AC
|
23
|
±1.5
|
25~38
|
150±15
|
620±15
|
|
3.2
|
425~525
|
27~30
|
DC or AC
|
23
|
±1.5
|
25~38
|
150±15
|
620±15
|
|
4.0
|
475~575
|
27~30
|
DC or AC
|
25
|
±1.5
|
25~38
|
150±15
|
620±15
|
|
5.0
|
550~650
|
27~30
|
DC or AC
|
25
|
±1.5
|
25~38
|
150±15
|
620±15
|
|
6.0
|
625~725
|
28~31
|
DC or AC
|
29
|
±1.5
|
32~44
|
150±15
|
620±15
|
|
6.4
|
700~800
|
28~32
|
DC or AC
|
31
|
±1.5
|
38~50
|
150±15
|
620±15
|
Note: If the welding voltage and the welding current are off the standards, the mechanical property of the fused metal and the use effect of welding wires will be affected. According to actual needs, other heat treatment standards can also be adopted.
Packing: 25kg/coil, 50kg/coil, 150kg/coil, 200kg/coil or OEM PACKING
