Al Summan Metals, an outstanding manufacturer and supplier based in Dubai, UAE, is pleased to offer its high-quality Super Duplex Steel Hollow Bars. These bars are renowned for their exceptional strength, corrosion resistance, and lasting durability. Built using advanced technology and strict quality control, they readily comply with international standards. Owing to a well-balanced microstructure of austenite and ferrite, these Super Duplex Steel Hollow Bars deliver superior protection against pitting, crevice corrosion, and chloride-induced stress corrosion cracking. Al Summan Metals ensures accurate dimensions and a smooth surface finish, making these hollow bars ideal for demanding applications across industries such as marine, chemical, oil and gas, and power generation.
The composition of Super Duplex Steel Hollow Bars features approximately 25% chromium, 7% nickel, 3.6% molybdenum, together with small quantities of tungsten, copper, and nitrogen. This distinctive combination enhances their resistance to corrosion and mechanical strength. They deliver a tensile strength between 800 and 850 MPa, a yield strength of 550 MPa, and an elongation of roughly 25%. The alloy’s duplex structure offers outstanding hardness, toughness, and fatigue resistance, maintaining stability even under elevated pressure, temperature, and corrosive environments. This renders them perfect for essential and durable industrial applications.
Specifications :ASTM A276, ASME SA276
Standard :ASTM, ASME
Size :6 mm to 120 mm.
Length :1 to 6 Meters, Custom Cut Lengths
Dimensions :EN, DIN, JIS, ASTM, BS, ASME, AISI
| Material | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| Super Duplex Steel | 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 | 58.095 min |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
Yes, Super Duplex Steel Hollow Bars are capable of enduring elevated temperatures thanks to their outstanding strength and resistance to corrosion. Depending on the particular alloy, they work well in settings reaching up to about 300°C (572°F).
Super Duplex Steel Hollow Bars and Rods are produced using hot or cold working methods, such as extrusion and forging, and are then subjected to heat treatment, cold drawing, and precision machining to improve their strength and resistance to corrosion.
Super Duplex Steel Hollow Bars offer outstanding inherent corrosion resistance thanks to their high chromium and molybdenum content, which means extra protective coatings are usually not required. That said, in extremely aggressive conditions, coatings can provide added protection.
Al Summan Metals’ Super Duplex Steel Hollow Bars are used across numerous industries that require both mechanical strength and corrosion resistance. They work especially well for offshore oil and gas drilling, desalination facilities, and chemical processing equipment. Because of their durability and resistance to chloride-induced corrosion, they have become a preferred option for marine applications and seawater systems. On top of that, these hollow bars serve a role in heat exchangers, pressure vessels, and instrumentation tubing. Their dependable performance in high-stress, corrosive, and high-temperature conditions ensures a long service life and steady results in critical engineering operations.
We supply materials accompanied by both mill test certificates and third-party test certificates, guaranteeing top-tier quality and compliance.
Al Summan Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Dubai, UAE
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