Lastek 61 G

Smooth bronze layers on low current

Surfacing of bronze on steel, cast steel and cast iron.

Joining of copper and its alloys.

Easy to weld with a stable arc.

Good wear resistance for metal to metal friction.

Specifications & Usage


Repairs of bronze bells.

Machine repair: surfacing of bearing areas and shafts.

Joining of copper, bronze and brass plates, flanges, tubes.

Hardness: 100 - 120 HB



Clean the parts well.

For the first layer start with a low amperage to minimize dilution.

Operate with a circular movement in order for the weld metal to cool down slowly.


Use the maximum amperage.

For butt welds: root gap sufficiently wide to avoid convex beads.

Preheat temperature: Tin bronze: 150-200 °C (300-400 °F), Brass: 200-300 °C (400-570 °F).


Welding proces: Covered electrode (SMAW)
Material Type: Copper (alloys)
Welding positions: All, except vertical down.
Norm : DIN 1733
Classification: EL – CUSn7
Norm: AWS A5.6
Classification: E CuSn-C
Minimum packing: 5 kg in a plastic box