Lastek 802

Heat and corrosion resistant

Joining austenitic, refractory Cr-Ni steels like AISI 310, 314, 309… Material number 1.4841, 1.4843, 1.4845, 1.4828, … cast steel ACI HK. Repair welding of austenitic cast iron like Ni-Resist® or abrasion resistant cast iron like Ni-Hard®.

Heat resistant weld overlays for temperatures up to 1200 °C.

For applications in an atmosphere of sulphuric gases (sulphur dioxide and especially hydrosulphide vapours) apply a protective layer with Lastek 806 after welding the joint with Lastek 802.

Welding clad steel. Recommended for welding armoured steels and steels with high carbon content.

Specifications & Usage


Heat treating: furnace tubes, burner nozzles, fixtures…

Cement industry: kiln chains, kiln feed chutes, …

Petroleum and petrochemical industry: pumps, tubes, tube sheets, …

Melting and refining equipment.

Pulp and paper: digesters, filter press plates and frames, mixing kettles.


Weld with minimum heat input: short arc, low amperage, electrode almost vertical to the work piece.

Use dry electrodes.

If necessary: redry at 250°C for 1 or 2 hours.


Welding proces: Covered electrode (SMAW)
Material Type: Stainless steel
Welding positions: All, except vertical down.
Norm : EN ISO 3581-A
Classification: E 25 20 R 12
Norm: AWS A5.4
Classification: E 310-16
Minimum packing: 5 kg in a plastic box