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low-alloy high-strength steel
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Product Description

 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

 

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