4830

The product is specifically formulated for welding and cladding of fully austenitic and heat-resistant steels, as well as castings in alloyed steels with similar characteristics. The weld deposit offers oxidation resistance up to 1000 °C and possesses exceptional resistance to thermal shock and fatigue. This alloy, derived from the type 800, features an increased chromium and nickel content, providing superior resistance to carburization and oxidation. Main applications include welding of centrifugally cast pyrolysis coils, reformer tubes, return bends, and T-fittings, particularly relevant in the petrochemical industry.

25% Cr – 24% Ni – austenitic alloy.

Fully austenitic structure with carbide precipitations.

Joining and cladding of fully austenitic heat resistant CrNi-steels of the same kind and similar Cast steels.

• EN W.Nr.: 1.4855 (GX40CrNiSiNb24-24), 1.4845 (X8CrNi 25-21), 1.4830 (X35CrNiNb25-24)
• ASTM: 310S