Golden Bridge
Golden Bridge ER309 (JQ-MG309) MIG Welding Wire
Golden Bridge ER309 (JQ-MG309) MIG Welding Wire
SKU:JQ-MG309-030-02.2
JQ-MG309
JQ-MG309 is a gas shielded MIG welding wire of 24Cr-13Ni austenitic stainless steel, which has excellent performance with smooth arc, low spatter level, good wire feeding behavior and optimal bead appearance. It is permitted for all-position welding. It has good crack resistance, and is suitable for welding martensitic, pearlite stainless steel with poor toughness.
The product is applicable for welding Cr24Ni13, and is commonly used in the fields such as petrochemical industry and thermal power etc..
Chemical components of welding wire (%)
Item |
C |
Mn |
Si |
Cr |
Ni |
Mo |
P |
S |
Cu |
| Example value | 0.081 | 1.61 | 0.40 | 23.85 | 13.15 | 0.023 | 0.012 | 0.013 | 0.08 |
Mechanical properties of deposited metal
Test item |
Rm (MPa) |
A (%) |
| Example value | 610 | 40 |
Reference current (DC+)
Diameter (mm) |
Φ0.8 |
Φ1.0 |
Φ1.2 |
| Welding current(A) | 70-150 | 100-200 | 140-220 |
1. Shielding gas: Pay attention to the purity of shielding gas, it is recommended to keep the mixed ratio at Ar+1-3%O2.
2. Gas flow: 20-25L/min.
3. Dry extension length: 15-25mm.
4. The rust layer, moisture, oil stain, dust, etc. on the welding part shall be clearly removed.
5. When the welding work is performed outdoors, windproof measures should be taken when the wind speed is greater than 1.5m/s, and appropriate windproof measures should be taken to prevent blowholes.
The above suggestions are for reference only, and specific operation should be made according to the onsite conditions. When necessary, conduct process evaluation before determining the welding scheme.
2. Gas flow: 20-25L/min.
3. Dry extension length: 15-25mm.
4. The rust layer, moisture, oil stain, dust, etc. on the welding part shall be clearly removed.
5. When the welding work is performed outdoors, windproof measures should be taken when the wind speed is greater than 1.5m/s, and appropriate windproof measures should be taken to prevent blowholes.
The above suggestions are for reference only, and specific operation should be made according to the onsite conditions. When necessary, conduct process evaluation before determining the welding scheme.
