Welding Electrode LB-26 is a high-quality low-hydrogen electrode for welding medium to high carbon steel. With a tensile strength of 550 MPa, crack-resistant welds, and international certification (ABS, LR, BKI, GL), LB-26 is ideal for heavy construction, pressure pipes, and industrial equipment.
AWS A5.1 E7016, JIS Z3211 D4316
Welding Electrode LB-26 is used for welding medium to high carbon steel that requires high tensile strength and crack resistance.
This electrode is suitable for structural applications, such as building construction, bridges, pressure pipes, and heavy equipment, especially in welding conditions that require superior mechanical properties and good weldability in various positions.
| Parameters | Description |
| Product Name | Welding Electrode LB-26 |
| Brand | KOBELCO |
| Main Application | Welding electrodes for carbon steel |
| Welding Electrode Size | 2.6 mm, 3.2 mm, 4.0 mm, 5.0 mm |
| Welding Process | SMAW |
| Weight Per Packaging | 20 Kg |
| Polarity | AC, DCEP |
KOBELCO's LB-26 welding electrode offers excellent performance for welding medium to high carbon steels. With stable arc performance, high-quality welds, superior mechanical strength, and post-weld heat treatment capabilities, this electrode is ideal for heavy-duty structural applications, pressure piping, and industrial equipment.
Advantages: flexible, crack-resistant, strong welds, and internationally certified.
Mechanical properties of all metals being welded
| Typical | Guaranty | |||
| 0.2% YS (MPa) | 480 | 410 | 400min | 340min |
| TS (MPa) | 550 | 500 | 483min | 450min |
| El on 4d (%) | 33 | 34 | 22min | 25min |
| IV -29C (J) | 100 | 130 | 27min | 27min |
| PWHT (Cxh) | AW | 620×1 | AW | 620±15×1 |
| Ø mm | 1F, 1G, 2F, 2G | 3G (uphill), 4G |
| 2.6 | 55–85 | 50–80 |
| 3.2 | 100–140 | 90–130 |
| 4.0 | 140–190 | 120–180 |
| 5.0 | 190–250 | 160–210 |
| ABS | LR | DNV | BV | NK (*) | CR |
| 3, H15 | 3Ym. H15 | 3Y, H10 | 3, 3Y, H15 | KMW3, H15 | 3, 3Y, H15 |
Note: (*) AC
Chemical composition of all welded metals (mass %)
| Chemistry Value | Typical | Guaranty* |
| C | 0.8 | 0.15 |
| Si | 0.50 | 0.75 |
| Mn | 1.01 | 1.60 |
| P | 0.013 | 0.035 |
| S | 0.003 | 0.035 |
| Ni | 0.01 | 0.30 |
| Cr | 0.02 | 0.20 |
| Mo | < 0.01 | 0.30 |
| V | 0.01 | 0.08 |
| Others (**) | 1.05 | 1.75 |
Notes :
(*) single value is maximum
(**) combined limit for Mn + Ni + Cr + Mo + V
| Diameter (mm) | Length (mm) | Weight/pack (kg) | Weight/carton (kg) |
|---|---|---|---|
| 2.6 | 350 | 5 | 20 |
| 3.2 | 350 | 5 | 20 |
| 4.0 | 400 | 5 | 20 |
| 5.0 | 450 | 5 | 20 |
| Diameter (mm) | Weight/piece (g) | Carton Size (mm) |
|---|---|---|
| 2.6 | 20 | 170W × 110H × 380L |
| 3.2 | 34 | 170W × 115H × 380L |
| 4.0 | 60 | 170W × 110H × 430L |
| 5.0 | 106 | 170W × 110H × 480L |
ISO 9001:2015
ISO 14001:2015
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