Luois Metals is a reputable manufacturer and supplier of Super Duplex Steel Hollow Bars, proudly based in Houston, USA. Known for their top-notch products, the company specializes in precision-engineered hollow bars that cater to a variety of industrial needs. With a strong emphasis on durability, corrosion resistance, and strength, Luois Metals guarantees that each product meets international standards. Their expertise and dedication to quality make them a go-to choice for clients looking for reliable Super Duplex Steel Hollow Bars, especially in tough environments across sectors like oil and gas, petrochemical, marine, and construction.
Super Duplex Steel Hollow Bars are primarily made up of chromium (24–26%), nickel (6–8%), molybdenum (3–5%), and nitrogen, resulting in a well-balanced dual-phase microstructure. These bars boast impressive mechanical properties, including a high tensile strength of up to 800 MPa and a yield strength of around 550 MPa, along with outstanding fatigue and impact resistance. They also offer remarkable resistance to stress corrosion cracking and pitting, making them perfect for aggressive environments. Their low thermal expansion and good weldability further enhance their performance in demanding structural and fluid-handling 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 can withstand high temperatures due to their excellent strength and corrosion resistance. They are suitable for applications in environments up to around 300°C (572°F), depending on the specific alloy.
Super Duplex Steel Hollow Bars and Rods are manufactured through hot or cold working processes, including extrusion and forging, followed by heat treatment, cold drawing, and precision machining for enhanced strength and corrosion resistance.
Super Duplex Steel Hollow Bars have excellent natural corrosion resistance due to their high chromium and molybdenum content, making additional protective coatings generally unnecessary. However, in highly aggressive environments, coatings may offer extra protection.
Super Duplex Steel Hollow Bars find extensive use in industries that require strength, corrosion resistance, and durability. This includes offshore oil and gas platforms, subsea equipment, chemical and petrochemical plants, and marine applications. Their robustness makes them ideal for structural components, pressure vessels, heat exchangers, and high-pressure piping systems. In construction, they provide support for load-bearing frameworks that face harsh conditions. Their exceptional mechanical properties and corrosion resistance also make them suitable for power generation, pulp and paper industries, and desalination plants, where longevity and performance are crucial in highly corrosive environments.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Louis Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Houston, USA
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