Lastek 979

Outstanding corrosion resistance

Lastek 979 has an excellent corrosion resistance to both oxidising and reducing media.

The weld deposit is resistant to most aggressive chemical process environments where nothing else resists.

Especially resistant to pitting, crevice and stress corrosion.

Specifications & Usage


Welding of nickel base alloys like UNS N10276, DIN 2.4602.

Dissimilar welding between nickel base alloys and stainless or low-alloy steel.

Protection of steel surfaces against corrosion by "cladding" with Lastek 979.

Excellent resistance against chlorides and seawater.

Used in chemical processing, pollution control, industrial and municipal waste treatment, pulp and paper production and so on.


The base metal has to be thoroughly cleaned before welding.

Weld with the lowest possible heat input.

Let the weld metal cool down between different layers.

Use argon backing gas for the root pass in pipe welding.


Welding proces: Tig welding (GTAW)
Material Type: Nickel (alloys)
Welding positions: NA
Norm : DIN 1736T1
Classification: SG NiMo16Cr16W
Norm: AWS A5.14
Classification: ER NiCrMo-4
Minimum packing: 5 kg in a cardboard box