Golden Bridge
Golden Bridge E8015-B2 (R307BH) Electrode
Golden Bridge E8015-B2 (R307BH) Electrode
SKU:R307BH-3/32-11
R307BH
R307BH is a pearlite heat-resistant steel welding electrode with low-hydrogen sodium coating, which contains Cr1%-Mo0.5%. It adopts DCEP connection method and is permitted for all positions welding The product presents good welding performance with smooth arc and optimal bead appearance. The deposited metal has low S and P content, low temper embrittlement sensitivity, good plasticity, good low-temperature impact toughness and high-temperature mechanical properties.
The product is applicable for welding pressure-bearing equipment such as coke tower and gasifier, such as ASME SA387 Gr.12 Class2 steel.
Chemical components of deposited metal (%)
Test item |
C |
Mn |
Si |
S |
P |
Cr |
Mo |
| Example value | 0.06 | 0.70 | 0.25 | 0.005 | 0.010 | 1.00 | 0.50 |
Mechanical properties of deposited metal
Test item |
Rm（MPa） |
ReL/Rp0.2（MPa） |
A（%） |
KV2(J) -20℃ |
Heat treatment |
| Example value | 510 | 405 | 27 | 180 | 690℃×14h |
| Example value | 525 | 415 | 25 | 160 | 690℃×6h |
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) | 60-90 | 90-120 | 130-180 | 160-210 |
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 removed from the work piece before welding.
2. Impurities such as rust, oil stain and moisture must be removed from the work piece before welding.
