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Golden Bridge

Golden Bridge ER80S-Ni2 (JQ-MG55-Ni2) MIG Welding Wire

Golden Bridge ER80S-Ni2 (JQ-MG55-Ni2) MIG Welding Wire

SKU:JQ-MG55-NI2-040-02.2

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JQ-MG55-Ni2

 AWS A5.28 ER80S-Ni2
 ISO 14341-A-G Z2Ni2



JQ-MG55-Ni2 is a mixed gas shielded solid welding wire for low temperature steel, which has excellent welding performance with smooth arc, low spatter level, good wire feeding behavior and optimal bead appearance. It is permitted for all positions welding. The deposited metal has excellent low-temperature impact toughness.



The product is applicable for welding low temperature steel (-60℃) with tensile strength of 550MPa. It is mainly used in the fields such as petrochemical industry (fertilizer, ethylene, coal liquefaction, liquefied petroleum gas, etc.), refrigeration equipment, food industry and liquid gas storage equipment.

Chemical composition of welding wire (%)

Item
C
Mn
Si
S
P
Ni
Cu
Example value 0.035 1.15 0.45 0.006 0.010 2.35 0.12
 

Mechanical properties of deposited metal (Ar+2%O2, heat treatment temperature: 620±15℃×60+150min)

Item
Rm (MPa)
ReL/Rp0.2
(MPa)
A
(%)
KV2 (J)
-60℃
Measured value 590 493 26 158 159 133
 

Reference specification (DC+)

Wire specification（mm）
Welding current（A）
Gas flow（L/min）
Φ1.0 50~220 15~20
Φ1.2 80~350 15~25
Φ1.4 120~400 20~25
Φ1.6 170~550 20~25
 




1. The content of impurities in shielding gas should be strictly controlled to ensure the gas purity.
2. The dry elongation should be controlled within 15-20mm.


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Diameter

* 0.040 inches (1.0 mm), * 0.045 inches (1.20 mm), * 0.055 inches (1.40 mm), * 1/16 inches (1.60 mm)
Package

2.2 lb (1 kg), 11 lb (5 kg), 33 lb(15 kg), 44 lb (20 kg), 550 lb (250 kg), 770 lb (350 kg)