Duplex & Super Duplex Steel Buttweld Fittings

ISO Certified Manufacturer of Super Duplex Steel Buttweld Long & Short Radius Elbow, Lap Joint Stub End, Piggable Bend Fittings, Hot Induction Bend, U Bend - Seamless 1/2″～24″ Inch and ERW, Welded, Fabricated 1/2″～48″Inch.

Duplex stainless steel is a type of stainless steel that has a two-phase microstructure consisting of both austenitic and ferritic phases in roughly equal proportions. This unique combination gives duplex stainless steel a range of beneficial properties. It offers high strength, approximately twice that of conventional austenitic stainless steels like 304 and 316. Duplex stainless steel also provides excellent resistance to localized corrosion types, including pitting, crevice corrosion, and stress corrosion cracking, which makes it suitable for harsh environments where these types of corrosion are prevalent. Additionally, duplex stainless steel exhibits good weldability and a cost advantage due to its lower nickel content compared to austenitic grades, making it a more economical choice for many applications.

Super duplex stainless steel is an advanced variant of duplex stainless steel, with a similar two-phase microstructure but with higher levels of chromium, molybdenum, and nickel. These enhancements significantly boost its corrosion resistance, especially against chloride-induced stress corrosion cracking and pitting, making it even more suitable for extremely corrosive environments. Super duplex stainless steel also offers greater strength and improved toughness, allowing it to withstand higher mechanical stresses and more demanding conditions. The superior properties of super duplex stainless steel make it ideal for critical applications in industries such as oil and gas, chemical processing, marine environments, and desalination plants.

Duplex and super duplex steel buttweld fittings are specialized components used to connect pipes in various industrial applications, offering a combination of superior strength, corrosion resistance, and reliability. These fittings are crafted from duplex and super duplex stainless steels, known for their two-phase microstructure consisting of both austenitic and ferritic phases. This structure imparts a unique balance of properties, making these fittings highly suitable for demanding environments.

The types of duplex and super duplex buttweld fittings include elbows, tees, reducers, caps, and crosses, among others. These fittings are essential for changing the direction of flow, branching off, reducing pipe size, and closing pipe ends in piping systems. Their robust properties ensure long service life, reduce maintenance costs, and enhance safety by providing reliable performance under challenging conditions. As a result, duplex and super duplex steel buttweld fittings are highly valued in industries that demand durability and resistance to corrosion.