Nguyen Duy Bien

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Duplex stainless steel and Supper duplex stainless steel

DefinitionsDuplex Stainless SteelThis refers to standard duplex stainless steel, a stainless steel with 22% chromium, with UNS S31803 and UNS S32205 (both known as Alloy 2205) being the most widely used. Common duplex stainless castings are UNS J92205 (ASTM A890 Grade 4A, CD3MN) and UNS J93372 (ASTM A890 Grade 1B, CD4MCuN).  A 22%Cr duplex stainless steel […]

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