JQ.MG80-G Gas-shielded Solid Welding Wire

JQ.MG80-G Gas-shielded Solid Welding Wire

JQ.MG80-G
GB：ER80-G
AWS：ER110S-G
Current：Suitable for welding high strength structures with tensile strength of 790MPa. It can be used for welding some key structures, such as pressure vessels, construction machinery, hoisting machinery, ships, mining machinery, etc.
Main Applications：

JQ.MG80-G

According with GB ER80-G
Corresponding with AWS ER110S-G


Introduction: JQ.MG80-G is a kind of high strength gas-shielded welding wire. The mixed gas Ar+20% CO2 can be used as shielding gas. It has soft arc, stable burning and fewer spatters. The bead has higher impact toughness.


Uses: Suitable for welding high strength structures with tensile strength of 790MPa. It can be used for welding some key structures, such as pressure vessels, construction machinery, hoisting machinery, ships, mining machinery, etc.


Chemical Composition of Welding Wire(%)
C
Mn
Si
S
P
Cu
Ni
Mo
≤0.10
1.40~1.80
0.40~0.70
≤0.025
≤0.025
≤0.50
1.60~2.40
0.30~0.60

Examples of Chemical Composition of Deposited Metal (%)
C
Mn
Si
S
P
Cu
Ni
Mo
0.063
1.60
0.63
0.012
0.021
0.12
1.68
0.50

Mechanical Properties of Deposited Metal
Test Item
Rm(MPa)
ReL或Rp0.2(Mpa)
A(%)
KV2(J)
Guarantee Value
≥790
≥690
≥17
≥27(-20℃)
General Result
802
695
24
73

Reference Current (DC+)

Instructions:
1. The impurity content in the shielding gas should be strictly controlled to guarantee the purity of gas.
2. When welding, the gas flow rate is generally 20～25L/min.
3. The extension elongation should be 15～25mm.

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