Golden Bridge
Golden Bridge (J427(J48-47)) Electrode
Golden Bridge (J427(J48-47)) Electrode
SKU:J427(J48-47-3/32-11
J427(J48-47)
J427 is a kind of carbon steel welding electrode with low-hydrogen sodium coating, which adopts DCEP method. It is permitted for all positions welding work. The product has good welding performance with arc stiffness, effortless slag removal ability and optimal bead appearance. The deposited metal presents good mechanical properties and crack resistance.
The product is applicable for welding low carbon steel and low alloy steel structures with tensile strength of 430MPa, such as buildings, bridges, pipelines, pressure vessels, etc.
Chemical components of deposited metal (%)
Test item |
C |
Mn |
Si |
S |
P |
Ni |
Cr |
Mo |
V |
| Example value | 0.075 | 0.75 | 0.40 | 0.010 | 0.022 | 0.031 | 0.030 | 0.007 | 0.013 |
Mechanical properties of deposited metal
Test item |
Rm (MPa) |
Rel (MPa) |
A (%) |
KV2(J) |
|
-20℃ |
-30℃ |
||||
| Example value | 525 | 430 | 30 | 178 | 165 |
X-ray flaw detection requirements: Level I
Reference current (DC+)
Welding electrode diameter (mm) |
Φ2.5 |
Φ3.2 |
Φ4.0 |
Φ5.0 |
| Welding current(A) | 60-100 | 80-140 | 110-210 | 160-230 |
1. Before welding, the welding electrode should be baked at 350℃ for 1 hour for ready use.
2. Impurities such as rust, oil stain and moisture must be cleared off of the work piece before welding.
3. Operating with short arc and narrow gap when welding.
2. Impurities such as rust, oil stain and moisture must be cleared off of the work piece before welding.
3. Operating with short arc and narrow gap when welding.
