Welcome to Maduka Metals, your trusted partner for premium industrial materials right here in Abuja. We take pride in connecting local industries with the strength and reliability of advanced alloys like our Duplex Steel Hex Bar. Sourced for excellence and supplied with a commitment to supporting Nigeria’s growing infrastructure and manufacturing sectors, this high-performance material is engineered to tackle the most demanding projects, ensuring longevity and superior performance in challenging environments.
The composition of Duplex Steel Hex Bar is a careful balance, primarily blending chromium, nickel, and molybdenum with a nitrogen addition, creating a unique austenitic-ferritic microstructure. This synergy gives the bar its renowned strength, often double that of standard stainless steels, alongside exceptional toughness and impressive resistance to corrosion, including stress corrosion cracking. It maintains good ductility, making it a robust and dependable choice for heavy-duty applications where failure is not an option.
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 the Duplex Steel Hex Bar is incredibly versatile, forming the backbone of critical components in numerous fields. It’s essential in construction for heavy load-bearing structures, in the oil and gas industry for valves and pump shafts facing corrosive seawater, and in chemical processing plants for machinery that withstands aggressive chemicals. Its hexagonal shape also makes it ideal for crafting high-strength fasteners, bolts, and custom-fabricated parts, proving its worth anywhere exceptional strength and corrosion resistance are non-negotiable.
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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