Maduka Metals is a well-respected manufacturer and supplier of top-notch Stainless Steel 420 Hollow Bars, proudly based in Abuja, Nigeria. Renowned for its precision engineering and unwavering commitment to quality, the company delivers durable and high-performance stainless steel products to various sectors, including construction, engineering, automotive, and manufacturing. Maduka Metals guarantees that each product adheres to international standards for strength, corrosion resistance, and dimensional accuracy. With state-of-the-art production facilities and a talented workforce, the company has established itself as a reliable name in Nigeria’s metal industry, providing dependable stainless steel solutions tailored to meet customer needs.
Stainless Steel 420 Hollow Bars are martensitic stainless steels primarily made up of chromium (12–14%), carbon (0.15–0.40%), along with trace amounts of manganese, silicon, and nickel. This unique blend gives the material high hardness, impressive tensile strength, and moderate corrosion resistance. It boasts a tensile strength ranging from 700–850 MPa and can be heat-treated to further enhance its mechanical properties. Additionally, it offers good wear resistance and dimensional stability. These features make Stainless Steel 420 Hollow Bars perfect for demanding applications that require strength, machinability, and durability in tough working conditions.
Dimensions : ASTM, ASME
Standard : ASTM / ASME SA A582, A276, A564, ASTM A484, 484M
Surface : hrap, hot rolled pickled or sand blasting finished, cold drawn, polished, hairline
Range : Range – 3.17mm to 350mm dia
| Element | C | Cr | Mn | Ni | P | S | Si |
| SS 420 | 0.15 | 14.0 | 1.00 | – | 0.04 | 0.03 | 1.00 |
| Element | Tensile Strength | Yield Strength | Elongation | Hardness |
| SS 420 | 95,000 | 50,000 | 25 | 175 |
| Hollow Bar | ||
|---|---|---|
| Size(mm) | WT PER FEET IN KGS | WT PER MTR IN KGS |
| 16 | 0.49 | 1.60 |
| 18 | 0.62 | 2.02 |
| 20 | 0.76 | 2.49 |
| 22 | 0.92 | 3.02 |
| 25 | 1.19 | 3.90 |
| 28 | 1.49 | 4.89 |
| 28 | 1.49 | 4.89 |
| 30 | 1.71 | 5.61 |
| 32 | 1.95 | 6.38 |
| 36 | 2.46 | 8.08 |
| 38 | 2.74 | 9.00 |
| 40 | 3.04 | 9.97 |
| 45 | 3.85 | 12.62 |
| 50 | 4.75 | 12.62 |
| 56 | 8.96 | 19.55 |
| 60 | 6.84 | 22.44 |
| 65 | 8.03 | 26.34 |
| 70 | 9.31 | 30.54 |
| 75 | 10.69 | 35.06 |
| 80 | 12.16 | 39.89 |
| 90 | 15.39 | 50.49 |
| 100 | 19 | 62.34 |
SS 420 hollow bars' excellent wear resistance enhances their performance by ensuring durability in high-friction environments. This property makes them ideal for cutting tools, medical instruments, and mechanical components, reducing maintenance needs and extending service life in demanding applications.
SS 420 hollow bars offer moderate high-temperature resistance but are generally not ideal for prolonged exposure to extreme heat. Their performance is best in applications requiring hardness and corrosion resistance under controlled or moderately elevated temperature conditions.
These hollow bars find extensive use in industries that demand high mechanical performance and corrosion resistance. They are particularly well-suited for manufacturing pump shafts, valve components, bearings, bushings, and machine parts that endure high stress and wear. Moreover, they are utilized in the automotive, oil and gas, and marine sectors for components that face mild corrosive environments. Thanks to their polishable surface and robust strength, these bars are also ideal for decorative and structural applications. Maduka Metals offers these hollow bars in a variety of sizes and finishes to cater to the diverse needs of industrial and engineering projects.
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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