Welcome to Maduka Metals, your trusted partner for industrial materials right here in Abuja. We take pride in supplying high-grade Cobalt Alloy 6b bar and rod, providing local industries with the robust materials needed to tackle demanding projects. Our commitment is to deliver not just a product, but reliable performance and consistent quality, ensuring your operations have the durable foundation required for success in challenging environments. We understand the needs of Nigerian industry and are here to support your growth with top-tier solutions.
Cobalt Alloy 6b is engineered for resilience. Its composition is primarily cobalt, fortified with significant chromium for exceptional resistance to wear and corrosion, along with tungsten for strength. This combination results in a material that boasts impressive hardness and maintains its mechanical properties even under intense heat. It resists deformation under heavy loads and offers outstanding performance against abrasion, making it a go-to choice where softer metals would quickly fail. This alloy is built to endure.
| Cobalt Chromium Molybdenum Alloy | CoCrMo |
|---|---|
| AMS | AMS 5788 |
| Grade | Cobalt Alloy Round Bars |
| Dimensions | DIN, ASME, AISI, BS, ASTM, EN, JIS, |
| Length | 1 to 6 Meters, Custom Cut Lengths |
| Manufacturing all types of Cobalt Alloy Rods | Forging, Square, Round, Ingot, Hex(A/F), Rectangle, Billet, |
| Other forms available | Seamless Tube, Pipe, Rods, Bars, Fittings, Flanges, Plate, Strip, Sheet, Plate, Coil, wire etc. |
| Grade | C | Mn | P | S | Si | Ni | Cr | Fe | W | Mo |
| Cobalt 6B | .90 – 1.40 | 2.0 max | – | – | 2.0 max | 3.0 max | 28.0 – 32.0 | 3.0 max | 3.50 -5.50 | 1.50 max |
| CONDITION | TENSILE STRENGTH | YEILD STRENGTH | ELOGNATION |
|---|---|---|---|
| ANNEALED |
80 (551) |
35 (241) |
30 |
| STANDARD | WERKSTOFF NR. | UNS |
| Cobalt 6B | – | R30006 |
Welding processes suitable for Cobalt Alloy 6B Bar include TIG (Tungsten Inert Gas), MIG (Metal Inert Gas), and resistance welding. Preheating and post-weld heat treatment are often required for optimal results.
Yes, Cobalt Alloy 6B Bar can be welded, but it requires careful control of heat and filler material to avoid cracking or weakening. Preheating and post-weld heat treatment are often recommended.
Cobalt Alloy 6B rods are available in various sizes, typically ranging from 0.125" to 6" in diameter. Common finishes include cold-drawn, hot-rolled, and polished for enhanced surface quality.
The strength of Cobalt Alloy 6b makes it indispensable across several critical sectors. You’ll find it used in the tough components of industrial valves, pump shafts, and engine parts that face constant friction and high temperatures. It’s also essential for cutting tools, surgical instruments, and wear-resistant surfaces in manufacturing equipment. Essentially, wherever there’s a need for a material that can stand up to severe abrasion, corrosion, and heat without losing its edge or integrity, Cobalt Alloy 6b bar and rod provide a dependable and long-lasting solution.






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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