Kobelco RB26 Welding Electrodes, 2.6mm to 4.0mm

Kobelco RB26 covered welding electrodes for mild steel. High titania type, suitable for all-position welding including vertical down.

Specifications

• Type: high titania covered electrode
• Material: mild steel
• Application: all-position welding, including vertical downward

Size options

• KOB-RB2626 — RB26 2.6mm, 20kg
• KOB-RB2632 — RB26 3.2mm, 20kg
• KOB-RB2640 — RB26 4.0mm, 20kg

Packed 1 packet of 5kg, or 4 packets per carton at 20kg.

What high titania means in practice

It describes the flux coating, and it is why RB26 is the electrode people learn on and then keep using. A high titania coating strikes easily, runs with a soft, stable arc, and produces slag that lifts off cleanly rather than needing to be chased with a chipping hammer. The bead comes out smooth and well shaped with relatively little technique.

The trade is penetration. This is a general-purpose electrode for mild steel fabrication and repair — not the choice for deep penetration on heavy section or for critical structural work, where a low hydrogen electrode is specified.

Choosing a diameter

• 2.6mm — thin sheet and light sections, lower current, more control.
• 3.2mm — the general-purpose size for most fabrication and repair.
• 4.0mm — thicker material, faster deposition, higher current.

Match the electrode diameter to the material thickness, and set the current to the electrode. Too large a rod on thin steel burns through; too small on thick steel gives a weak, cold weld.

Storage

Keep electrodes dry. Flux absorbs moisture from the air, and damp flux causes porosity, spatter and an unstable arc — which in Singapore's humidity means a sealed container rather than an open packet on the bench.

WhatsApp us at +65 8978 9808 for bulk pricing.