Welding Electrode MS-77 (also known as KOBE/Familiarc MS-77) is a welding electrode for welding mild steel (soft steel) construction grade, such as ST-41 steel with a tensile strength of approximately 42 kgf/mm².
AWS A5.1 E6013 EN ISO 2560-A-E 35 0 R, JIS Z3211 E4313
High quality welding electrodes from MS-77, designed to provide optimal welding results with stable flame combustion and easy slag removal.
This MS-77 welding electrode is very suitable for projects that require precision and efficiency, especially on thin plates.
With AC and DC current compatibility, these electrodes are the ideal choice for a wide range of welding applications in industry and construction.
| Parameters | Description |
| Product Name | Welding Electrode MS-77 |
| Brand | KOBELCO |
| Material Type | Mild steel (low-medium carbon steel) |
| Welding Electrode Size | 2.6 mm, 3.2 mm, 4.0 mm |
| Weight Per Packaging | 20 Kg |
Recommended Production Size and Welding Current
| Size (mm) | 1F, 1G, 2F, 2G, 3G down | 3G up, 4G |
| 2.6 | 40-95 | 45-95 |
| 3.2 | 60-125 | 60-125 |
| 4.0 | 105-170 | 100-150 |
Mechanical properties of all metals being welded
| Parameters | Example | Guaranty |
| Yield Strength MPa (ksi) | ≥ 330 ( ≥ 48) | 420 (61) |
| Tensile Strength MPa (ksi) | ≥ 410 (≥ 60) | 500 (73) |
| Elongation (%) | ≥ 17 | 25 |
Chemical Composition (mass%)
| C | Si | Mn | P | S |
| 0.09 | 0.30 | 0.39 | 0.017 | 0.014 |
ISO 9001:2015
ISO 14001:2015
© 2025, PT. Intan Pertiwi Industri | All Rights Reserved.
