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UNS S32750 & UNS S32760
Super Duplex Plate/Sheet
Super Duplex Seamless & Welded Tube
Super Duplex Seamless & Welded Pipe
Super Duplex Round Bar
Super Duplex Flanges F53/F55
Super Duplex Specialty Forgings
Super Duplex Seamless & Welded BW Fittings
| Trade Name | UNS | Super Duplex Industry Specifications |
Chemical Composition |
Min.Tensile (KSI) |
Min.Yield (KSI) |
Elongation 2″ % |
|---|---|---|---|---|---|---|
| SAF 2507 |
UNS S32750 |
ASTM A182 F53, A240, A479, A789, A790, A815, A928, A949, A988 SAE J405 |
C 0.030 max Cr 24.0-26.0 Mn 1.20 max Mo 3.0-5.0 N 0.24-0.32 Ni 6.0-8.0 P 0.035 max S 0.020 max Si 0.8 max |
116 | 80 | 15 |
| UNS S32760 | ASTM A182 F55, A240, A276, A314, A473, A479, A789, A790, A815, A988 SAE J405 |
C 0.03 max Cr 24.0-26.0 Cu 0.5-1.0 Mn 1.0 max Mo 3.0-4.0 N 0.2-0.3 Ni 6.0-8.0 P 0.03 max S 0.01 max Si 1.0 max W 0.5-1.0 Other%Cr+3.3x%Mo+16x%N = 40 min |
109 | 80 | 15 |
This is a Duplex alloy stainless steel designed to feature high strength, resistance to pitting, stress corrosion cracking, erosion corrosion and corrosion fatigue, crevice corrosion and strong weldability.
Super Duplex Applications
Oil and gas industry equipment,
Offshore platforms, heat exchangers, process and service water systems, fire-fighting systems, injection and ballast water systems,
Chemical process industries, heat exchangers, vessels, and piping,
Desalination plants, high pressure RO-plants and seawater piping,
Mechanical and structural components, high strength, corrosion-resistant parts,
Power industry FGD systems, utility and industrial scrubber systems, absorber towers, ducting, and piping.
Super Duplex Corrosion Resistance
The high chromium and molybdenum content of Super Duplex makes it extremely resistant to uniform corrosion by organic acids like formic and acetic acid. Super Duplex also provides excellent resistance to inorganic acids, especially those containing chlorides.