CO-REL® HJ431 (Fused) Submerged Arc Welding Flux
Application:CO-REL®HJ431 flux is designed for submerged arc welding with H08A, H08MnA, H10Mn2, and H10MnSi wires, suitable for carbon steels and low-alloy steels (e.g., 16Mn, 15MnV). Widely applied in shipbuilding, boilers, low-pressure vessels, and structural steel fabrication. Also co
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Standard:
HJ431
NB/T47018.4-2022
GB/T5293-2018
GB/T36037-2018 - WhatsApp:+44 736311459
- Office: Jianfu Industrial Park, No.79 Wengexing Road, Liaobu Town, Dongguan City, Guangdong Province
- Email: info@coboltwelding.com
Product description
Application: CO-REL® HJ431 flux is designed for submerged arc welding with H08A, H08MnA, H10Mn2, and H10MnSi wires, suitable for carbon steels and low-alloy steels (e.g., 16Mn, 15MnV). Widely applied in shipbuilding, boilers, low-pressure vessels, and structural steel fabrication. Also compatible with electroslag welding and copper welding.
Characteristics: This low-manganese low-fluoride flux features light-to-dark green glassy particles with mesh sizes of 10-40, 12-40, or 16-40. Engineered specifically for structural steel fillet welds, it delivers:
- Superior slag detachment
- Exceptional gas pore resistance
- Smooth weld bead appearance
- Cost-effective stable welding performance.
Mechanical Performance of Deposit Metal
Tensile Strength MPa (N/mm²): 420-550
Yield Strength (MPa): ≥340
Elongation A (%): ≥22
Impact Energy (J): -20℃≥34
Chemical Composition (%)
Precautions:
1. Weld surfaces must be cleaned of oil, moisture, rust, and other contaminants prior to welding.
2. Storage conditions require strict moisture-proof measures.
3. Flux must be baked at 300–400°C for 2 hours before welding.