Marcus Metals is a top manufacturing and supplier company of premium metal products. Its headquarters is in Midland, UK. It specializes in various alloys and metals. Being dedicated to providing the best possible services, Marcus Metals offers Cobalt Alloy 6B Bar and Rod, characterized by high strength, corrosion resistance, and excellent high-temperature performance. Cobalt Alloy 6B is extensively used in the aerospace, petrochemical, and energy industries, where the requirement for strength and reliability is critical. Quality assurance by the company ensures that every product will meet the rigorous requirements of the industries, providing the customers with materials that perform exceptionally well in the most challenging applications.
Cobalt Alloy 6B bar and rod, commonly named Stellite 6B is a high cobalt (nominal range = 58-65), chromium (nominal range 26-30), tungsten (3 to 5 wt. percent, and carbon balance 1.0-1.4 percent); it contains nominal amounts of other elements like iron, nickel along with small residues of others with improved properties and excellent wear as well as high resistance against oxidation and corrosion conditions. The mechanical properties of Cobalt Alloy 6B include tensile strength around 1,400 MPa, hardness between 40-45 HRC, and a very high melting point that makes it work well in aggressive 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 Bar and Rod is widely used for applications that require excellent wear resistance, high-temperature strength, and corrosion resistance. Aerospace components such as turbine blades and engine parts are the most common usage, as well as industrial uses such as cutting tools, bearings, and valve seats. Its high strength at elevated temperatures makes it suitable for highly stressed environments. The alloy is applied in medical device prosthetics and implants due to its biocompatibility. It’s also highly useful in the fields of severe chemical processing applications and power generating equipment because of excellent resistance to oxidation and corrosion.






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