Starc Metals stands out as a leading manufacturer and supplier of Cobalt Alloy 6B Bars and Rods right here in Canberra, Australia. We take pride in offering top-notch cobalt-based alloys that are celebrated for their exceptional wear resistance, strength, and corrosion resistance. Our Cobalt Alloy 6B bars and rods are meticulously designed to thrive in extreme conditions, delivering remarkable hardness and durability, even when faced with high temperatures. At Starc Metals, we prioritize superior quality, precision machining, and excellent metallurgical consistency, making our products perfect for demanding industrial applications like aerospace, chemical processing, and power generation.
Typically, the composition of Cobalt Alloy 6B Bars and Rods includes cobalt (the balance), chromium (27–30%), tungsten (4–6%), carbon (up to 1%), along with small amounts of nickel, silicon, and manganese. This distinctive blend gives Alloy 6B its impressive resistance to galling, seizing, and metal-to-metal wear. It boasts a tensile strength of around 965–1200 MPa and maintains high hardness (about 40–45 HRC) even after extended exposure to temperatures reaching up to 870°C. The alloy’s microstructure guarantees stability and excellent resistance to corrosion and oxidation in both acidic and marine environments.
| 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.
Cobalt Alloy 6B Bars and Rods find their way into various applications, including valve seats, pump shafts, bearings, cutting tools, turbine components, and wear rings. They are also utilized in scenarios that require long-lasting wear resistance under high friction, such as industrial knives, sealing surfaces, and mechanical parts that endure heat and stress. With outstanding performance in tough environments, Starc Metals’ Cobalt Alloy 6B Bars and Rods offer exceptional reliability, longevity, and efficiency, making them the go-to choice for critical engineering and high-temperature applications.






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