Use & Application
Product for welding and cladding of heat resistant fully austenitic steels and similar alloyed steel casts. The weld deposit is scale resistant up to 1000°C and is resistant to thermal shock and fatigue. This alloy was developed from 800 type alloys with increased chromium and nickel contents and exhibits improved carburization and oxidation resistance. Applications include the welding of centrifugally cast pyrolysis coils, reformer tubes, return bends, and tees for the petrochemical industry.
Alloy type
25% Cr – 24% Ni – austenitic alloy.
Microstructure
Fully austenitic structure with carbide precipitations.
Materials to be welded

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.

Products of the line 4830

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