ELECTRODE KOBELCO LB52-18 2.5MM
Here's a detailed, SEO-optimized product description for this item:
Kobelco LB-52-18 Low Hydrogen Welding Electrode — 2.5mm
Premium Japanese-Engineered SMAW Electrode for High-Integrity Steel Welding
Product Overview
The Kobelco LB-52-18 is a high-performance, low-hydrogen potassium-type covered electrode designed for Shielded Metal Arc Welding (SMAW/Stick Welding) of mild steel and 490MPa (50kg/mm²) class high-tensile steel. Manufactured by Kobe Steel (Kobelco), a globally trusted name in welding consumables, this 2.5mm electrode is widely recognized as an industry benchmark for weld quality, X-ray soundness, and crack resistance in critical structural applications.
Key Features
- Low Hydrogen Formula – Minimizes diffusible hydrogen content, significantly reducing the risk of underbead cracking and porosity
- Excellent X-Ray Quality – Produces welds with outstanding radiographic soundness, ideal for inspection-grade work
- Smooth Arc & Low Spatter – Delivers stable arc characteristics with easy slag removal and a clean bead appearance
- All-Position Welding – Suitable for flat, horizontal, vertical, and overhead welding positions
- High Mechanical Strength – Excellent tensile strength, ductility, and impact toughness even at low temperatures
- AC/DC Compatibility – Can be used with both AC and DC (reverse polarity) welding machines
Technical Specifications
| Specification | Details |
|---|---|
| Diameter | 2.5mm |
| Classification | AWS A5.1 E7016 / JIS Z3211 D5016 |
| Type | Low Hydrogen Potassium Type |
| Coating | Low Hydrogen (Basic) Coating |
| Current Type | AC / DC (+) |
| Tensile Strength | = 550 MPa |
| Recommended Use | Mild steel, high-tensile steel, structural steel |
Common Applications
- Structural steel fabrication and construction
- Shipbuilding and marine structures
- Pressure vessels and pipelines
- Bridges, heavy machinery, and steel frameworks
- Critical load-bearing joints requiring crack-free, X-ray quality welds
Why Choose Kobelco LB-52-18?
Trusted by welders and fabricators worldwide, the LB-52-18 series is often referred to as the "gold standard" of low-hydrogen electrodes due to its consistent arc stability, minimal spatter, and reliable mechanical properties. It is ideal for professionals who require certified weld quality for structural, pressure, and safety-critical applications.
Storage & Handling Tips
To maintain low-hydrogen performance, store electrodes in a dry environment and re-bake in a holding oven (100–150°C) if exposed to moisture before use.
This product is priced “per KG”. The minimum quantity available to purchase is shown in the "Pack Qty".