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
KOBELCO FAMILIARC LB-26 welding electrode is used for welding medium to high carbon steels requiring 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.
Before finalizing, compare the specifications of the LB series within the Kobe Steel welding electrode range to ensure parameters and results align.
| Parameters | Description |
|---|---|
| Product Name | Welding Electrode LB-26 |
| Brand | KOBELCO |
| Classification | AWS A5.1 E7016 |
| Main Application | Welding electrodes for carbon steel welding |
| Welding Electrode Size | 2.6 mm, 3.2 mm, 4.0 mm, 5.0 mm |
| Welding Process | SMAW (Shielded Metal Arc Welding) |
| Weight Per Packaging | 20 Kg |
| Polarity | AC, DCEP |
| Redrying Conditions | 300–350°C for 0.5–1 hour |
| Identification Color | Blue and White |
KOBELCO LB-26 welding electrode has excellent workability for welding medium to high carbon steel.
With stable arc performance, high-quality weld results, superior mechanical strength, and post-weld heat treatment capability, this electrode is ideally suited for heavy structural applications, pressurized 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 |
The LB-26 welding electrode is designed to deliver stable welding performance across various welding positions. Characterized by a smooth arc, good penetration, and high-quality weld results, this electrode is suitable for applications ranging from fabrication and steel construction to the maintenance and repair of carbon steel components.
| 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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