Sandvik 1C256 (W.Nr 1.4724), Sandvik 1C356 (W.Nr 1.4742) and Sandvik 2C48 (ASTM TP 446.2) are ferritic stainless steels with high chromium content.
Typical applications are recuperators and air heaters for the glass, carbon black, steel and waste incineration industries, muffle tubes for wire drawing and pyrometer tubes for the furnace industry.
1C256 and 1C356 are particularly suited to use as recuperator tubing in flue gases containing a certain level of sulphur at operating temperatures between 500ºC and 750ºC.
2C48 is designed for use in sootblower lance tubes in the boiler industry and also for pyrometer tubing. Its ductility makes it particularly suitable for cable tubing for furnace temperature measuring systems.
Sandvik is producing tube and pipe in the new grades in a full size range between 20mm and 70mm outside diameter.