Kobelco LB-52U
The Kobelco LB-52U is a low-hydrogen stick electrode specifically designed for one-side pipe welding. With excellent arc stability, this electrode ensures smooth, consistent performance, even in challenging welding positions. Furthermore, it is classified under AWS A5.1: E7016 and EN ISO 2560-A: E 42 2 B, making it ideal for applications that demand high strength and toughness. In addition, the LB-52U operates efficiently with both AC and DC+ currents, offering flexibility in various welding setups.
Because of its superior mechanical properties, including high tensile strength and impact toughness, it is perfectly suited for industries that require welds to withstand low temperatures. Additionally, its low diffusible hydrogen content (< 4 ml/100g) significantly reduces the risk of hydrogen-induced cracking, ensuring weld reliability across critical applications.
Key Features of Kobelco LB-52U
- Excellent Arc Stability: Guarantees smooth and stable arcs, particularly effective for one-side pipe welding applications.
- Low-Hydrogen Electrode: By minimizing hydrogen-induced cracking, it ensures high-quality, crack-resistant welds in demanding environments.
- High Toughness: Provides exceptional impact toughness, even in temperatures as low as -29°C, enhancing weld strength.
- Flexible Welding Positions: Suitable for all positions, including vertical, overhead, and flat, ensuring on-site flexibility.
- Global Approvals: Approved by major classification societies such as ABS, DNV, and LR, ensuring compliance with international standards.
Key Industry Applications
- Shipbuilding: Frequently utilized in ship hull and structural component welding, ensuring strength in marine environments. The superior arc stability guarantees consistent welds across different welding positions.
- Petrochemical Industry: Commonly used for welding pressure vessels, storage tanks, and piping systems that face high-temperature and high-pressure conditions. The LB-52U’s toughness ensures reliability in these environments.
- Pressure Vessels: Ideal for fabricating and repairing pressure vessels in power plants, ensuring long-lasting welds under high stress and pressure.
- Pipelines: Ensures strong, crack-free welds in critical oil and gas pipelines, where pressure and stress are constant. Its low-hydrogen properties enhance durability.
- General Construction: Provides reliable, high-strength welds for structural steel fabrication in construction, ensuring safe and durable structures.
Specifications
| Feature | Details |
|---|---|
| Classification | AWS A5.1: E7016, EN ISO 2560-A: E 42 2 B |
| Tensile Strength | 560 MPa (typical) |
| Yield Strength | 480 MPa |
| Elongation | 31% |
| Impact Value | 80 J at -29°C |
| Welding Current | AC, DC+ |
| Diffusible Hydrogen Content | < 4 ml/100g |
The Kobelco LB-52U is an excellent choice for critical welding applications, offering superior arc stability, crack resistance, and high-toughness welds, ensuring optimal performance in a wide range of industries.
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