Welding of low-carbon and low-alloy steels.
Suitable for: marine vessels, pressure pipelines, drilling rigs, etc.
Ductile welds, impact toughness meets requirements at -30°C.
Easy to weld in difficult positions such as 3G, 4G, etc.
High weld deposition coefficient.
Tình trạng: Còn hàng
Bulk supply of Viet Duc welding electrodes available, including long-term contract arrangements.
Please call: 0853 853 838 (for the best quotation).
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Clear origin and complete documentation.
Free shipping for orders over 500,000 VND in Ho Chi Minh City.
Applicable standards:
Features and applications:
E7018-VD is a low-hydrogen welding rod with added iron powder. The weld has high ductility and impact toughness at -30°C. The slag is easily removed, does not contain slag, and has minimal spatter.
Suitable for welding carbon steel and low-alloy steel, with loads up to 490-550 MPa, such as: ship structures, pressure pipelines, drilling rigs, etc.
The metal solidifies quickly, making it easy to weld in all positions.
Chemical composition (%):
| C | Mn | Si | P | S | |
| Request | ≤ 0.1 | ≤ 1.4 | ≤ 0.6 | ≤0.03 | ≤0.02 |
| Achieve | 0.06 | 1.25 | 0.35 | 0.02 | 0.009 |
Mechanical properties of weld metal:
| Yield strength (Mpa) |
Tensile strength (Mpa) |
Elongation (%) |
Impact toughness (J) |
|
| Request | ≥ 400 | ≥ 500 | ≥ 22 | -20○C: ≥ 47 |
| -30○C: ≥ 27 | ||||
| Achieve | 420 | 520 | 29 | -20○C: 120 |
| -30○C: 90 |
Instructions for use:
Clean off oil, grease, and dirt before welding.
Dry the welding rods at 300-350°C for 30-60 minutes before welding.
Prepare the weld edges according to regulations.
Select the appropriate welding current to avoid defects.
Use Ø 3.2 electrodes for root welds.
Welding rod size and current used:
| Diameter (mm) | Ø2.5 | Ø 3.2 | Ø 4.0 | |
| Length (mm) | 300-350 | 350 | 400 | |
| Current intensity (A) | Korean | 70÷100 | 100÷130 | 160÷210 |
| Vertical welding & overhead welding | 80÷85 | 90÷120 | 130÷180 | |
Certified by: VR, NK
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