Luois Metals is a reliable manufacturer and supplier of Duplex Steel Hex Bars based in Houston, USA. We take pride in offering top-notch products that are celebrated for their remarkable strength, toughness, and resistance to corrosion. Our Duplex Steel Hex Bars are crafted with precision, ensuring excellent dimensional accuracy, a smooth finish, and dependable performance even in the toughest environments. Thanks to their unique dual-phase microstructure of austenite and ferrite, these bars boast superior mechanical properties, making them perfect for critical applications in industries like marine, chemical, oil & gas, and construction. At Luois Metals, we prioritize timely delivery and consistent quality to meet the demands of global industrial standards.
These Duplex Steel Hex Bars are made from a blend of chromium, nickel, molybdenum, and nitrogen, which provide exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking. The duplex microstructure gives them nearly double the strength of traditional austenitic stainless steels while still maintaining good ductility and toughness. On the mechanical side, they offer impressive tensile and yield strength, outstanding fatigue resistance, and durability under pressure, making them ideal for challenging operational conditions.
Standards : EN, DIN, JIS, ASTM, BS, ASME, AISI
Size : 10 mm To 100 mm Dia in
Length : 100 mm TO 6000 mm Length.
Specifications : ASTM A276, A479 / ASME SA276, SA479
Form : Rectangular
Finish : Bright, Polish & Black
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
S32205 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 21.0 – 23.0 | 2.50 – 3.50 | 4.50 – 6.50 | 0.8 – 0.20 | 63.54 min |
| S31803 / S32205 | Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
Yes, Duplex Steel Hex Bars are fully recyclable. They can be melted down and reused without losing their essential properties, making them an environmentally sustainable option for various applications.
Duplex Steel Hex Bars have inherent corrosion resistance due to their composition. However, in highly aggressive environments, additional coatings or treatments may be necessary to enhance their longevity and performance.
To choose the right Duplex Steel Hex Bar, consider factors such as mechanical strength, corrosion resistance, temperature conditions, and compatibility with your application’s specific industry standards and environmental factors.
You’ll find Duplex Steel Hex Bars being utilized across various industries that require strength, toughness, and corrosion resistance. In marine settings, they’re commonly used for shafts, fasteners, and propeller components. The oil & gas industry relies on them for valves, flanges, and equipment on offshore platforms. Chemical and petrochemical sectors use them in heat exchangers, process equipment, and storage tanks. Plus, they’re also found in construction, heavy machinery, and industrial frameworks. Their unique combination of high strength, corrosion resistance, and reliability makes Duplex Steel Hex Bars a go-to choice for critical industrial applications.






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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