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

Application

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.

Instructions

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.

Specifications

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