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Marsh Nickel Alloys is a premier manufacturer and supplier of Super Duplex Steel Tubing in Canberra, Australia. Our Super Duplex Steel Tubing is engineered to deliver exceptional strength and superior corrosion resistance, making it ideal for the most demanding industrial applications. Perfect for use in high-pressure and high-temperature environments, our tubing is widely used in the oil and gas, chemical processing, and marine industries. With outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking, our products ensure reliability and durability in harsh conditions. AtMarsh Nickel Alloys, we are committed to providing high-quality products and exceptional customer service, establishing ourselves as a trusted partner for Super Duplex Steel Tubing in Canberra and beyond.
| Standard | : | ASTM A789 / ASME SA 789 |
|---|---|---|
| Type | : | Seamless Tubes |
| Grade | : | UNS S32750, UNS 32760 & UNS S32950 |
| Size | : | 1/2″NB TO 12 “NB IN |
| Thickness | : | 0.5-45mm |
| Outer Diameter | : | 6.0-630mm |
| Dimensions | : | OD(6.0-630)*WT(0.5-45)mm |
| Schedule | : | SCH20, SCH30, SCH40, STD, SCH80 |
| Length | : | Single Random, Double Random & Cut Length |
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
Super Duplex Tubing | 0.030 max | 1.20 max | 0.80 max | 0.035 max | 0.020 max | 24.00 – 26.00 | 3.00 – 5.00 | 6.00 – 8.00 | 0.24 – 0.32 |
UNS No | Grade | Proof Stress 0.2% (MPa) | Tensile Strength (MPa) | Elongation A5(%) | Hardness Max | |
HB | HRB | |||||
Super Duplex Steel Tubing | 2507 | 550 | 795 | 15 | 310 | 32* |
Super Duplex Steel Tubing is mainly made up of chromium, nickel, molybdenum, and nitrogen, creating a well-balanced microstructure of austenite and ferrite. This special blend gives it double the strength of regular austenitic stainless steels while still offering great toughness and weldability. The tubing shows exceptional resistance to corrosion caused by chlorides, as well as to erosion and fatigue, even in high-pressure and high-temperature settings. It also boasts excellent mechanical stability and oxidation resistance, making it suitable for both cryogenic and high-temperature applications. Each tube goes through thorough inspection and testing to guarantee precise dimensions and outstanding metallurgical integrity.
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Thanks to its remarkable mechanical and corrosion-resistant properties, Super Duplex Steel Tubing is widely utilized across various industries. In the oil and gas sector, it’s commonly used for subsea pipelines, heat exchangers, and flow lines that face corrosive seawater. The chemical and petrochemical industries rely on it for reactors, pressure vessels, and heat transfer systems. It’s also a great fit for desalination plants, offshore structures, and marine applications where high strength and resistance to chloride stress are crucial.
