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Duplex & Super Duplex Steel in Sheet, Plate, Bar

Our speciality alloy division at Castle Metals offers a full range of Duplex and Super Duplex stainless steels in sheet, plate, and round bar form. We have extensive in-house processing capabilities which make us an ideal one stop shop for all your requirements.

These grades are designed to offer a super combination of heat resistance, high temperature corrosion resistance, toughness and strength, and are used in the world’s most technically demanding industries.

Stainless Steel Super Duplex and Duplex Grades

Grade UNS ASTM/ASME Werkstoff
Duplex S31803 A240 / F51 1.4462
Super Duplex S32750 A240 / F55 1.4410
Super Duplex S32760 A240 / F53 1.4501
Lean Duplex S32304 A240 1.4362
6 Moly S31254 A240 / F44 1.4547

Duplex & Super Duplex Plate, Sheet, and Bar Stock

Grade Sheet (mm) Plate (mm) Bar (mm) [Diameter]
UNS S31803 1.50 – 3.00 5.00 – 100.00 76.20 – 457.20
UNS S32304 2.00 5.00 – 50.00 -
UNS S32750 3.00 5.00 – 50.00 12.70 – 304.80
UNS S32760 - 5.00 – 50.00 12.70 – 304.80