Rupal Metals, a leading Delhi, India-based manufacturer and supplier, has expertise in providing excellent quality Duplex Steel Hex Bars to cater to varied industrial needs. Rupal Metals is renowned for precision engineering, strength, and conformation to international standards and offers a variety of Duplex Steel Hex Bars in different sizes and specifications. With decades of industry experience, state-of-the-art manufacturing facilities, and a customer-focused approach, Rupal Metals is relied upon by customers from various industries for dependable and corrosion-resistant steel material. The organization makes every effort to deliver on time, offer competitive rates, and maintain strict quality assurance to deliver the maximum value to its customers both domestically and internationally.
Duplex Steel Hex Bars consist mainly of chromium (21–23%), nickel (4.5–6.5%), molybdenum (2.5–3.5%), manganese, nitrogen, and limited carbon, exhibiting balanced microstructure of austenite and ferrite. The dual-phase structure has superior mechanical strength and corrosion resistance. Duplex steel possesses high yield strength (nominally about 450–620 MPa), higher tensile strength (620–800 MPa), and outstanding resistance to stress corrosion cracking and pitting. Its greater toughness and resilience in severe conditions make it perfect for high-demand applications in marine, chemical, and petroleum industries.
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 are applied extensively in different sectors because of their great strength, superior corrosion resistance, and durability. Such bars are perfect for marine environment applications like offshore oil rigs, shipbuilding, and desalination facilities. They are also applied in chemical processing equipment, heat exchangers, pressure vessels, and structural members in bridges and buildings. The two-phase microstructure provides enhanced performance when used in environments subject to chloride and acidic exposure. Duplex Steel Hex Bars are also appropriate for pulp and paper industries, food processing, and pharmaceutical equipment where hygiene and strength are paramount.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Rupal Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Delhi, India
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