Duplex and Super Duplex Alloys

These alloys combine the best properties of austenitic and ferritic stainless steels, offering outstanding resistance to corrosion and extremely high mechanical strength.

Facade’s Strength 2205 (Duplex)

A chromium-molybdenum alloy engineered with a two-phase microstructure (ferritic and austenitic). This unique composition imparts high resistance to corrosion fatigue, stress corrosion cracking, and erosion, making it ideal for processes handling chlorides, desalination plants, and oil & gas infrastructure.

Product

Welded Pipe

Seamless Pipe

B/W Fittings

Flanges

Pressure Fittings

UNS Designation

Size Range

4"-24"

½"-8"

½"-24"

½"-2"

S31803/S32205

Schedule/Class

10s, 20s, 40s, 80s

10s, 40s, 80s, 160, XXH

10s, 40s, 80s, 160

150#, 300#, 600#

3000# THRD/SW

Applicable Standard

ASTM/ASME 790

ASTM/ASME 815

ASTM/ASME F51, F60

Specification PDF Download

Facade’s Strength 2507 (Super Duplex Grade)

This nickel-molybdenum-chromium alloy is designed for applications demanding exceptional strength and superior corrosion resistance. Its high levels of nitrogen, chromium, and molybdenum ensure outstanding resistance to chloride pitting and crevice corrosion, commonly found in offshore platforms, chemical processing, and seawater equipment.