Welcome to Maduka Metals, your trusted partner in Abuja for premium stainless steel solutions. We take pride in manufacturing and supplying high-performance SMO 254 bars and rods, materials engineered to excel in the most demanding environments. Our commitment is to provide local industries with reliable, top-tier products that ensure longevity and efficiency in their critical applications, backed by our expert knowledge and dependable service right here in Nigeria’s capital.
SMO 254 is a super-austenitic stainless steel known for its exceptional composition. It features high levels of chromium, nickel, and molybdenum, along with added nitrogen, which gives it superior resistance to pitting and crevice corrosion. This alloy also boasts impressive mechanical strength, toughness, and excellent fabricability, making it a robust choice for components that must withstand aggressive chemical attacks and maintain structural integrity under significant stress.
Standards : EN, DIN, JIS, ASTM, BS, ASME, AISI
Size : 1/2″ to 100″
Length : 100 mm to 6000 mm
Specifications : ASTM A276, A279, A479
Form : Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wire-mesh, Billet, Ingot, Forging Etc.
Finish : Bright, Polish & Black
| Elements | Carbon | Chromium | Manganese | Molybdenum | Nickel | Nitrogen | Phosphorus | Silicon | Sulphur |
|---|---|---|---|---|---|---|---|---|---|
| SMO 254 UNS S31254 | 0.02 max | 19.5-20.5 | 1.0 max | 6.0-6.5 | 17.5-18.5 | 0.18-0.22 | 0.03 max | 0.8 max | 0.01 max |
| 0.2% Proof Stress (N/mm2 ) [ksi] minimum | 300 [43.5] |
| Tensile Strength (N/mm2) [ksi] minimum | 650 |
| Elongation (%) minimum | 35 |
| Hardness (HBN) | 270 max |
| Reduction of Cross Section Area (%) | 50 |
SMO 254 Bars and Rods are designed with a high content of chromium, nickel, and molybdenum, which provides excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. This composition makes them highly effective in aggressive environments, such as marine, chemical processing, and petrochemical industries, where high chloride concentrations are present.
Yes, SMO 254 Bars and Rods can be easily welded using standard welding techniques. However, it is important to follow proper procedures and use appropriate filler materials to maintain the material’s superior corrosion resistance and mechanical properties. This makes it suitable for critical applications where welded joints are required.
SMO 254 Bars and Rods are commonly used in industries such as chemical processing, marine, and petrochemical, where materials need to withstand highly corrosive environments. They are used in heat exchangers, pressure vessels, desalination plants, and other critical infrastructure requiring high performance in extreme conditions.
The remarkable durability of SMO 254 bars and rods makes them ideal for challenging applications. They are extensively used in chemical processing plants, offshore oil and gas platforms, and pollution control systems like flue gas desulphurization units. You’ll also find them in seawater equipment, pharmaceutical tubing, and pulp and paper manufacturing, wherever exceptional resistance to chlorides and acidic environments is non-negotiable for safety and long-term operational reliability.






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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