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Ferritic stainless 444, 1.4521
Grade 444 is a low carbon, low nitrogen, dual stabilized ferritic stainless steel that provides pitting and crevice corrosion resistance superior to most ferritic stainless steels and some austensitic stainless steels. Type 444 is dual stabilized with titanium and niobium. Grade 444 stainless equivalent to austensitic grade 304 in many corrosion environments and has lower coefficient of expansion and better thermal conductivity. It has superior chloride stress corrosion cracking resistance to grades 304 and 316.
Chemical composition ( % weight )
|444, 1.4521, X2CrMoTi18-2||0.25 max||1.00 max||1.00 max||0.040 max||0.030 max||17.50~19.50||1.00 max||0.035 max||1.75~2.50||0.20+4(C+N)min, 0.80 max|
AISI 444, EN 1.4521, DIN X2CrMoTi18-2 hot and cold rolled stainless steel sheet, plate, strip and coil