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Lean duplex UR2202: how to keep in the welds the excellent mechanical properties of the base metal?

  • A. Fanica and G. Passot

Abstract

The new Mo free duplex stainless steel UR2202 was developed by Industeel in close cooperation with Ugitech - Schmolz + Bickenbach. It can be used in many construction or transport applications, as a substitute for 304 and 304L. With at least the same corrosion properties, the new UR2202 has higher mechanical properties. This provides the potential for significant weight savings for fabricated tanks, pressure vessels etc., when compared to the austenitic grade. Different welding products are considered to achieve homogeneous or heterogeneous welds with the lean duplex base metal and can be selected according to the required corrosion resistance, toughness and tensile properties.

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Lean duplex UR2202: how to keep in the welds the excellent mechanical properties of the base metal?

  • A. Fanica and G. Passot

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