Kobe Steel LB-52-18 welding electrode is a type of low hydrogen powder iron welding electrode used for welding high tensile strength steel of 50 Kgf/mm2.
AWS A5.1 E7018, EN ISO 2560-A-E 42 3B, JIS Z3211 E4916
LB-52-18 Welding Electrode (AWS A5.1 E7018) is a type of low hydrogen covered electrode specifically designed for welding carbon steel and high tensile steel with a strength of up to 490 N/mm².
This electrode is manufactured to AWS A5.1 E7018 standards, which indicates that this electrode is included in the low hydrogen electrode category with DCEP (DC+) polarity and can be used in various welding positions (all positions).
| Parameters | Description |
| Product Name | Welding Electrode LB-52-18 |
| Brand | KOBELCO |
| Main Application | Welding electrodes for carbon steel |
| Welding Electrode Size | 2.6 mm, 3.2 mm, 4.0 mm, 5.0 mm |
| Weight Per Packaging | 20 Kg |
| Polarity | AC, DCEP |
LB-52-18 welding electrode is a low hydrogen welding electrode type E7018 designed for welding carbon steel and high tensile steel up to 490 MPa.
With a stable arc, optimal weld penetration, and easy-to-peel slag, this welding electrode provides smooth and clean welds in all positions.
It is ideal for structural applications such as bridges, buildings, pipes, and pressure tanks. Its quality meets AWS A5.1 standards and provides high crack resistance and reliable mechanical performance.
| Melting Point (MPa/ksi) | Tensile Strength (MPa/ksi) | Elongation (%) | IV (J) | PWHT |
|---|---|---|---|---|
| 500 (72) | 560 (81) | 31 | 110 | A.W |
| 420 (60) | 510 (74) | 32 | 140 | 620°C × 1 jam |
| Melting Point (MPa/ksi) | Tensile Strength (MPa/ksi) | Elongation (%) | IV (J) | PWHT |
|---|---|---|---|---|
| ≥400 (≥58) | ≥483 (≥70) | ≥22 | ≥27 | A.W |
| ≥350 (≥50) | ≥460 (≥67) | ≥25 | ≥27 | 620°C × 1 jam |
| Ø mm | 1F, 1G, 2F, 2G | 3G (uphill), 4G |
| 2.6 | 65~95 | 60~90 |
| 3.2 | 90~130 | 80~120 |
| 4.0 | 130~190 | 110~170 |
| 5.0 | 190~250 | 165~210 |
| LR | ABS | DNV-GL | BKI | NK |
| 3Ym, H15 | 3Y, 3H10 | 3Y | 3Y | KMW53, H10 |
Composition (weld metal mass %)
| Chemistry Value | Typical | Guaranty* |
| C | 0.07 | 0.15 |
| Si | 0.59 | 0.75 |
| Mn | 0.97 | 1.60 |
| P | 0.013 | 0.035 |
| S | 0.007 | 0.035 |
| Ni | 0.02 | 0.30 |
| Cr | 0.03 | 0.20 |
| Mo | < 0.01 | 0.30 |
| V | 0.01 | 0.08 |
| Others (**) | 1.03 | 1.75 |
Notes :
(*) single value is maximum
(**) combined limit for Mn + Ni + Cr + Mo + V
| Diameter (mm) | Length (mm) | Weight per Pack (kg) | Weight per Carton (kg) |
|---|---|---|---|
| 2.6 | 350 | 5 | 20 |
| 3.2 | 400 | 5 | 20 |
| 4.0 | 450 | 5 | 20 |
| 5.0 | 450 | 5 | 20 |
| Diameter (mm) | Weight per Bar (g) | Carton Size (mm) |
|---|---|---|
| 2.6 | 24 | 170W × 105H × 380L |
| 3.2 | 41 | 170W × 105H × 430L |
| 4.0 | 69 | 170W × 105H × 480L |
| 5.0 | 106 | 170W × 105H × 480L |
Need lb-52-18 welding electrode for your ongoing work? Place your order today through the contact information provided!
ISO 9001:2015
ISO 14001:2015
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