Lastek 1222

Creepresistant steels 2Cr - 1Mo

Lastek 1222 is a Cr-Mo alloyed electrode for joining heat resistant steels with a chromium content of approx. 2.5 % and a molybdenum content of approx.1.2 %.

The deposit is heat resistant up to 600 °C (1110 °F).

Good welding properties, also in position.

Specifications & Usage


Steamproduction: boilers, overheating tubes, flanges, collectors, ...

Petrochemical industry.

Welding 10CrMo910, 10CrSiMoV7, GS12CrMo910, …


Maintain a short arc length, electrode almost vertical to the workpiece.

Use dry electrodes, dry them at least 2 hours at 300 °C (570 °F).

Preheating and heattreatment: follow the instructions of the base metal producer, or ask Lastek for advice.


Welding proces: Covered electrode (SMAW)
Material Type: Mild steel (unalloyed)
Welding positions: All, except vertical down.
Norm : EN ISO 3580-A
Classification: E CrMo2 B 3 2
Norm: AWS A5.5
Classification: E 9018-B3
Minimum packing: 5 kg in a plastic box