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
JQ-MG55-Ni2
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.
2. The dry elongation should be controlled within 15-20mm.
