Lastek 805

Stainless steel electrode - vertical down

Vertical down welding of all common corrosion resistant CrNiMo and CrNi steels (as AISI 304, 304L, 316, 316L, Wn° 1.4301, 1.4306, 1.4550, 1.4401, 1.4404).

Vertical down welding can be performed much more rapidly, which will shorten the production time. Also the heat-input in the material is much lower, which has a favourable influence on tensions and distortion in light gauge metal. It will also limit the postweld cleaning work to a minimum (surface discoloration is much smaller, so less pickling is required).

Lastek 805 has a stable arc, gives almost no spatters and the welding beads have a smooth appearance.

It permits easy root pass welding of open joints in stainless steel.

Specifications & Usage


Chemical and petrochemical industry, food industry, hospitals, pharmaceutical industry, industrial kitchen installations, sea transport.

If danger from corrosion by nitric acid is a problem it is desirable to use Lastek 800 or 803.


For the root pass in an open joint and the first pass in a corner joint, it is preferable to weld with the electrode on the negative pole when using direct current.

Weld with a short arc at high speed, use the lowest amperage possible.

Use only dry electrodes.

Use a stainless steel brush and chipping hammer.


Welding proces: Covered electrode (SMAW)
Material Type: Stainless steel
Welding positions: All
Norm : EN ISO 3581-A
Classification: E 19 12 3 L R 11
Norm: AWS A5.4
Classification: E 316L-16
Minimum packing: 5 kg in a plastic box