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Product Description

 Introduction: H08MnA is a kind of carbon constructional steel copper-plated submerged welding wire. It has excellent welding process performance, the electric arc combustion is stable, the weld seam is handsome, the slag is easily removed, and the welding methods and the process requirements such as big line energy multi-layer multi-pass, double-sided single-pass and high-speed welding are met.

Application: It is widely applied to welding of carbon steel (for example, Q195, Q215, Q235, etc.) and low-strength alloy steel (for example, 16MnCu, 16Mn, etc.) in boilers, pressure containers, bridges, ships, etc. The used welding fluxes: Fused fluxes: HJ230, HJ330, HJ433, HJ434, etc.; and the sintered fluxes: SJ101, SJ107, SJ201, SJ301, SJ302, SJ501, SJ503, etc.

Chemical Compositions of Welding Wire:%

 
C
Mn
Si
P
S
Cr
Ni
Cu
Example Value
0.08
0.91
0.04
0.018
0.012
0.02
0.01
0.15
Range
≤0.10
0.80~1.10
≤0.07
≤0.030
≤0.030
≤0.2
≤0.30
≤0.20

Note: When the surface of welding wires is copper-plated, the copper content should not be more than 0.35% Welding Process:

①Weld carbon steel:

Welding Wire Specification
mm
Welding Current A
Electric Arc Voltage V
Current Type
Welding Speed
m/h
Inter-Pass Temperature℃
Extended Length of Welding Wire
mm
1.6
350
30±2
DC or AC
18
±1.5
135~165
13~19
2.0
400
30±2
DC or AC
20
±1.5
135~165
13~19
2.5
450
30±2
DC or AC
21
±1.5
135~165
22~35
3.2
500
30±2
DC or AC
23
±1.5
135~165
22~35
4.0
550
30±2
DC or AC
25
±1.5
135~165
25~38
5.0
600
30±2
DC or AC
26
±1.5
135~165
25~38
6.0
650
30±2
DC or AC
27
±1.5
135~165
25~38

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.

②Some low alloy steel welding process:

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

1.6
250~350
26~29
DC or AC
18
±1.5
13~19
150±15
2.0
300~400
26~29
DC or AC
18
±1.5
13~19
150±15
2.5
350~450
27~30
DC or AC
20
±1.5
19~32
150±15
3.0
400~500
27~30
DC or AC
23
±1.5
25~38
150±15
3.2
425~525
27~30
DC or AC
23
±1.5
25~38
150±15
4.0
475~575
27~30
DC or AC
25
±1.5
25~38
150±15
5.0
550~650
27~30
DC or AC
25
±1.5
25~38
150±15
6.0
625~725
28~31
DC or AC
29
±1.5
32~44
150±15
6.4
700~800
28~32
DC or AC
31
±1.5
38~50
150±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.

Packing: 25kg/coil, 50kg/coil, 150kg/coil, 200kg/coil or OEM PACKING

 

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