Welcome to Maduka Metals, your trusted partner in Abuja for premium industrial materials. We take pride in supplying high-integrity Duplex Steel Bright Bars, engineered to meet the rigorous demands of modern industry. Our commitment is to provide local businesses with reliable access to top-grade materials, backed by our deep understanding of the Nigerian market. When you choose Maduka Metals, you’re choosing a supplier dedicated to supporting your projects with quality products and dependable service right here in the heart of Nigeria.
Duplex Steel Bright Bar is renowned for its unique composition, primarily a balanced mix of chromium, nickel, molybdenum, and nitrogen. This synergy gives it an excellent combination of high strength and exceptional resistance to corrosion, particularly against stress corrosion cracking. It offers roughly double the yield strength of standard austenitic stainless steels, making it incredibly durable and tough. This robust material is designed to perform reliably in challenging environments where both mechanical stress and corrosive elements are present.
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 : Bright
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 Bright Bars are suitable for natural gas applications due to their excellent corrosion resistance, high strength, and durability, making them ideal for pipelines and gas processing systems.
Yes, Duplex Steel Bright Bars are suitable for hygienic and sanitary applications due to their corrosion resistance, cleanability, and ability to withstand harsh environments, making them ideal for food and pharmaceutical industries.
Duplex Steel Bright Bars are generally resistant to galvanic corrosion due to their alloy composition, which combines both austenitic and ferritic structures. However, in certain conditions, if coupled with more reactive metals, they can be susceptible to galvanic corrosion.
The exceptional strength and corrosion resistance of Duplex Steel Bright Bar make it indispensable for a wide range of demanding applications. It is commonly used for constructing high-strength fasteners, robust shafts, and heavy-duty pump components in the oil and gas industry. You’ll also find it in chemical processing plants, marine environments for underwater components, and in architectural projects requiring long-lasting structural integrity. Its versatility makes it a go-to material for engineers and fabricators working on critical infrastructure where failure is not an option.






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