Rod alloy steel Ferralium® 255 – 3SC

corrosion resistanthigh-strengthstainless steel

Ferralium® 255 – 3SC is a super duplex stainless steel supplied in cast form. As a 25% Cr alloy, with significant additions of Cu, it offers excellent corrosion resistance in a wide variety of corrosive chemicals including sulphuric, nitric and phosphoric acid. When submerged in seawater and other bodies of liquid containing chloride, it also provides outstanding resistance to pitting and crevice corrosion, with a critical pitting temperature exceeding 50°C. Excellent ductility and impact strength at both ambient and sub-zero temperatures combine with a high resistance to abrasion, erosion and cavitation erosion. Specifications Alloy 255 CD3MCuN Grade 1C 1.4507 UNS S32550 (Super Duplex S32550) Notes: Testing shall be carried out in accordance with ASTM A370 or EN ISO 6892-1 (tensile), EN ISO 6506-1 (hardness) Minimum properties quoted (tested at room temperature in a longitudinal direction) Testing performed on each melt of material per heat treatment batch Ferrite content 40-60% Microstructure certified free from grain boundary carbides, sigma, chi and laves phases