No. Strictly speaking, "2205 super duplex" is an inaccurate description: UNS S32205 (1.4462, F51) is a duplex stainless steel, not a super duplex.
UNS S32205 is the most commonly specified duplex stainless steel. Steels using 22% chromium were developed in the 1930s for severe service in paper mills, originally under the UNS S31803 caption. The chromium and molybdenum contents - which govern resistance to pitting corrosion - were later set towards the higher end of that range to form UNS S32205. Super duplex stainless steels, developed from the 1960s onwards around a 25% chromium content, add further corrosion resistance and strength.
Duplex stainless steels such as UNS S32205 are highly corrosion resistant, with a microstructure combining austenite and ferrite phases. They show characteristics of both austenitic and ferritic grades. They are also magnetic, which helps distinguish them from common austenitic stainless steels.
We carry an extensive stock of duplex stainless steel: solid bar up to 16" (406.4mm) diameter, plate up to 3" (76.2mm) thickness, plus selected hollow bars, seamless tubes and fittings.