Semih Metals, located in Istanbul, Turkey, is a trusted manufacturer and supplier of top-notch alloy products, including Duplex Steel Hex Bars. Renowned for its precision engineering and dedication to international quality standards, Semih Metals caters to various industries such as oil & gas, chemical processing, marine, and construction. These Duplex Steel Hex Bars are designed for exceptional strength, corrosion resistance, and structural integrity, making them perfect for tough environments. With outstanding machinability and durability, these hexagonal bars are well-suited for high-stress applications. Semih Metals guarantees that every product adheres to strict specifications and is delivered with consistency, reliability, and exceptional technical support to customers around the globe.
Duplex Steel Hex Bars are crafted from duplex stainless steels, which feature a balanced microstructure of austenite and ferrite. Common grades include UNS S31803 and S32205, primarily made up of iron (Fe), chromium (Cr ~22%), nickel (Ni ~5–6%), molybdenum (Mo ~3%), and nitrogen (N). These elements offer remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking. On the mechanical side, duplex steel boasts high tensile strength (typically around 620–850 MPa) and solid fatigue resistance. The hexagonal shape enhances grip and strength for precision-machined components, making these bars ideal for structural and fastener applications in corrosive environments.
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.
Duplex Steel Hex Bars find extensive use in industries that demand high strength and corrosion resistance in challenging conditions. They are commonly used in valve bodies, pump shafts, flanges, fasteners, and structural supports in offshore platforms, desalination plants, pulp and paper mills, and chemical processing facilities. Their resistance to chloride-induced corrosion makes them particularly suitable for marine and coastal applications. The hexagonal profile is perfect for mach…
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Semih Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Istanbul, Turkey
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