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:
CoCrW 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 CoCrW 6 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.

Material: Cocrw 6 cobalt base alloy（Co-based alloy 6, cobalt base alloy 6）

Room Temperature Hardness:HRC 40-46
Available Diameters:1.6mm, 2.0mm, 2.4mm, 2.7mm, 3.2mm, 4.0mm, 4.8mm
Standard Length: 1000mm
Welding Methods: CoCrW 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.

Applications:

Valve seats & gate valves

Gas turbine components Hot forging dies & extrusion tools 

Sugar mill rolls & cement plant parts 

Power station boiler tubes & wear components

Industries like valve manufacturing, automotive, and heavy machinery

Consultation & Selection:
Determining the suitability of CoCrW 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 relevant application guidance for wear-resistant overlay welding, repair welding, and cladding welding projects across various industries.