Electrodes for Creep Resisting Steels

Cromotherme-92 H4R is moisture resistant hydrogen controlled basic coated non synthetic electrode deposits 9Cr - 1Mo and enriched with Niobium, Vanadium,  Nitrogen and Tungsten. Tungsten additions provides adequate creep rupture  strength at higher steam pressures and temperatures. The controlled addition of  alloying elements improves the toughness and weldability. It is designed to weld  advanced materials, which are being used to improve thermal efficiency in power  plant, refineries etc. Ideal for welding steels of similar composition to achieve  adequate creep rupture strength. Some typical materials that are welded with this  consumable are A213 T92, A335 P92, A387 Gr92, etc.

1. Re-dry the electrodes at 300 C for one hour, if expose to atmosphere. 

2. Restrict the heat input, use short arc and stringer bead.