Aung Metals, a prominent manufacturer and supplier located in Naypyidaw, Myanmar, is known for crafting top-notch Duplex Steel Hex Bars that stand out for their remarkable strength, resistance to corrosion, and long-lasting durability. By leveraging cutting-edge manufacturing techniques and rigorous quality control measures, Aung Metals guarantees that each Duplex Steel Hex Bar adheres to international standards, ensuring dependable performance even in the toughest industrial settings. These hex bars are celebrated for their unique blend of austenitic and ferritic stainless steels, providing exceptional toughness, resistance to stress corrosion, and excellent weldability. Aung Metals delivers precision-engineered duplex steel solutions that are perfect for chemical, petrochemical, marine, and offshore applications where durability is key.
The composition of Duplex Steel Hex Bars includes around 22% chromium, 5–6% nickel, 3% molybdenum, and a majority of iron, along with trace amounts of nitrogen and other alloying elements. This specific makeup results in outstanding mechanical strength, toughness, and remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking. In terms of mechanical properties, duplex steel hex bars boast a tensile strength ranging from 700 to 900 MPa, yield strength between 450 and 550 MPa, and an elongation of 25 to 30%. The material also showcases good ductility, fatigue resistance, and weldability, making it an excellent choice for critical structural and industrial applications.
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 the chemical, petrochemical, marine, and offshore sectors due to their impressive corrosion resistance, high strength, and durability. They are commonly utilized in pump shafts, valves, fasteners, heat exchangers, pressure vessels, and structural components that face harsh conditions. Additionally, these bars are essential in seawater systems, oil and gas platforms, and industrial equipment where both mechanical strength and corrosion resistance are crucial. With their superior mechanical properties, duplex steel hex bars ensure long-lasting performance, reliability, and safety in demanding industrial environments.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Aung Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Naypyidaw, Myanmar
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