Chuck Metals is a reputable manufacturer and supplier of top-notch Cobalt Alloy 6B Bars and Rods based in Singapore, Pulau Ujong. They provide high-performance materials for various industries, including aerospace, oil & gas, power generation, and chemical processing. Cobalt Alloy 6B is celebrated for its remarkable wear resistance, corrosion resistance, and strength at high temperatures, making it perfect for tough environments. Chuck Metals supplies this alloy in both forged and precision-machined bar and rod forms, complete with full traceability and quality certifications. With their technical know-how and quick delivery, Chuck Metals stands out as a dependable source for cobalt-based alloy solutions.
Cobalt Alloy 6B Bars and Rods are primarily made up of cobalt (about 60%), with notable amounts of chromium (around 28–32%), tungsten (approximately 4–6%), and trace elements of carbon and nickel. This unique blend provides excellent wear resistance, even under high temperatures, along with impressive corrosion resistance in acidic and chloride-rich settings. The alloy boasts tensile strengths ranging from 900 to 1100 MPa and maintains a hardness of around 40 HRC in both hot and cold conditions. It effectively resists galling, erosion, cavitation, and metal-to-metal sliding wear, making it incredibly durable for high-stress applications.
| 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 |
Cobalt Alloy 6B Bars and Rods find extensive use in valve seats, pump components, cutting tools, bearings, bushings, and turbine blades that operate in high temperatures and corrosive environments. Its galling resistance makes it particularly suitable for metal-to-metal contact surfaces, like valve stems and sleeves. In chemical plants and refineries, it’s employed where acid corrosion and mechanical wear are prevalent. The aerospace, marine, and defense industries depend on Alloy 6B for reliable performance in components that face heat, pressure, and dynamic forces.






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