Hook:
In demanding environments where metal surfaces face combined challenges of high temperature, abrasive wear, and corrosive conditions, maintaining component integrity requires a hardfacing alloy that offers a balance of properties. Traditional wear-resistant alloys may not provide the necessary thermal stability and toughness for such applications.
Product Overview:
Stellite 6 cobalt based cast rods (AWS A5.21:2001 ERCoCr-A) are a cobalt-chromium-tungsten alloy widely considered for hardfacing and overlay welding applications. The alloy's composition, with moderate levels of carbon and tungsten, is designed to provide a combination of good toughness and machinability. It is engineered to maintain a set of performance characteristics, including corrosion resistance, high-temperature stability, impact resistance, and resistance to galling (adhesive wear), across a broad operating temperature range up to approximately 800°C.
Specifications & Properties:
Typical Applications: This alloy is used for overlaying components that must retain performance under heat, wear, and corrosion, such as automotive and internal combustion engine valves, high-temperature and high-pressure valves, hot shear blades, hot forging dies, and bearing races that are exposed to both impact and thermal stress.
Room Temperature Hardness: HRC 40-46
Available Diameters: 2.7mm, 3.2mm, 4.0mm, 4.8mm
Standard Length: 1000mm
Welding Methods: Stellite 6 cobalt based cast rods suitable for overlay welding using the oxy-acetylene (with a carburizing flame) and Gas Tungsten Arc Welding (GTAW/TIG) processes.
Packaging: 5 kg per box, 20 kg per carton, Standard packaging is available, with custom packaging specifications and requirements supported through contractual agreement.

Consultation & Selection:
Determining the suitability of Stellite 6 cobalt based rods for a specific component involves evaluating the base material, the exact service environment, and the required wear profile. Our technical team can provide guidance on its application for your hardfacing, rebuild, and overlay welding projects in industries like valve manufacturing, automotive, and heavy machinery.