Lastek 261 E

Resistant to shocks and very high temperatures

Wearfacing electrode on cobalt base with excellent corrosion resistance.

Withstands oxidising and reducing atmospheres up to temperatures of 1150 °C (2100 °F).

Very good resistance to fluctuating temperatures and to impact loading.

Resists corrosion by organic products containing sulphur, even at high temperatures.

Machinable with hard metal tools. Gives crack-free deposits also on large areas.

Indicated as base layer for harder cobalt alloys such as Lastek 251E, Lastek 262E.

Smooth and pore-free welding beads.

Specifications & Usage


Valve and valve seats of combustion engines, gas turbine blades, hot working cutting tools, glass cutting tools, blades of metal shears, pump shafts and bearings.

Hardness: 30-35 HRC.

Hardness after work hardening: approx. 40 HRC.


Remove all rust and dirt.

Sharp edges must be rounded for optimum adhesion.

The arc should be short to avoid too much dilution with the base metal.


Welding proces: Covered electrode (SMAW)
Material Type: Hard facing
Welding positions: All, except vertical down.
Norm : EN ISO 14700
Classification: E Co1
Norm: AWS A5.13
Classification: E CoCr-E
Minimum packing: 5 kg in a plastic box