Welding Electrodes for High Tensile Steel 490 N/mm2

Welding electrode for 490 N/mm² high-tensile steel; ideal for strong, crack-resistant welding of high-strength structural steel.

The KOBELCO 490 N/mm² series welding electrodes are specifically designed for welding high-strength structural steel. This product delivers joints that are tough, crack-resistant, and capable of withstanding heavy dynamic loads.

High-tensile strength steels are widely used in bridges, pressure vessels, high-rise building structures, and medium- to high-pressure piping systems.

Using a low-hydrogen basic coating, these electrodes produce a stable arc, deep weld penetration, and a clean weld bead free of porosity.

Each variant is developed to suit the requirements of the welding position, plate thickness, and desired joint strength standards.

Welding Electrode Selection for 490 N/mm² High-Tensile Steel

1. KOBELCO LB-26

A versatile rutile electrode for carbon steel and medium-tensile steel. It features easy arc striking, easy slag removal, and produces smooth welds in all positions.

Suitable for general fabrication, lightweight bridges, and water tanks.

View the full specifications for the LB-26 Welding Electrode.

2. KOBELCO LB-52

The E7016 electrode is an excellent choice for structural joints. It produces weld metal with high toughness and low hydrogen content, thereby minimizing the risk of cracking.

Stable performance in vertical and overhead positions; ideal for welding pipes and heavy structures.

View the full specifications for the LB-52 Welding Electrode.

3. KOBELCO LB-52-18

An electrode featuring smooth arc stability and high efficiency. It delivers welds with superior tensile strength and crack resistance, making it an ideal choice for heavy industrial projects, pressure vessels, and high-precision construction.

View the full specifications for the LB-52-18 Welding Electrode.

4. KOBELCO LB-52U

Specialized electrode for root pass welding of high-pressure piping.

It offers deep penetration, a smooth root bead, and easily detachable slag, facilitating work on pipe joints with limited access.

Highly recommended for the oil, gas, and petrochemical industries.

View the full specifications for the LB-52U Welding Electrode.

Advantages of 490 N/mm² Welding Electrodes

• High tensile strength (≥ 490 MPa) for heavy structural steel connections

• Low hydrogen content that prevents the formation of cold cracks.

• The welding arc is stable and easy to control in various positions.

• The slag is easy to remove, and the weld bead appears neat.

• Can be used with both AC and DC welding machines for maximum work efficiency.

General Application

• Fabrication and maintenance of steel bridges and high-rise building structures

• Pressurized tanks and chemical industry process vessels

• High-pressure piping systems in the oil and gas industry

• Heavy equipment construction, shipbuilding, and industrial boilers

Need a recommendation for the right electrode?

The technical team at PT Intan Pertiwi Industri is ready to assist you in selecting the right electrode based on the material type, welding position, and applicable WPS standards.

For more information, please contact us via the contact page or visit KOBE Welding Electrodes to view the full range of official KOBELCO Welding Electrodes distributed in Indonesia.