wire: a CoCrMo wear-and corrosion-resistant alloy solution for automated welding applications. The Milestone 700 series Cobalt-based Alloy Cored Wire utilize the Co-Cr-Mo alloy system. Milestone Co706 employs Mo as its primary alloying element, which, while maintaining high hardness and wear resistance, enhances corrosion resistance in reducing atmospheres, making it ideal for automated hardening and repair operations where high wear and corrosion coexist.
For applications previously utilizing powder hardening, Milestone Co706 flux-cored wire provides a continuous wire feeding solution for automated welding, compatible with robotic systems, MIG/MAG automated hardening machines, specialized welding equipment, and positioning workstations.
Key Performance Indicators: Alloy System – Co-Cr-Mo; Typical Hardness – HRC 41; Wear Resistance – ASTM G65 Proc B: 12 mm³, 5% HCl, room temperature – 40 MPY; 12 mm³, 5% HCl, 40°C – 545 MPY; 12 mm³, 10% H₂SO₄, 66°C – 380 MPY; 12 mm³, 10% HNO₃, boiling – 101 MPY. Product Form – Flux-cored wire. Advantages – High compatibility with automation; enables continuous wire feeding, making it suitable for robots, automated hardening machines, and positioning workstations; ensures consistent weld quality.
Cobalt-based Alloy Cored Wire High deposition efficiency; reduces changeover downtime, making it ideal for mass production and repair operations to enhance overall production efficiency. Uniform and stable composition; precise control of the flux-cored formulation ensures consistent hardness and corrosion resistance across batches. Low dust emission, enhanced safety by preventing powder dispersion, reduced risk of dust explosions, and improved workshop operating conditions. The dilution ratio is controllable, and the heat input is adjustable, making this material ideal for hardfacing of precision components such as valve seats, sliding plates, and nozzles. It offers both wear and corrosion resistance, with a typical hardness of HRC 41 and a volume loss of 12 mm³ per ASTM G65 Proc B test; it also exhibits excellent performance in media including hydrochloric acid, sulfuric acid, and nitric acid.
Cobalt-based Alloy Cored Wire Typical applications include: delayed coking heating furnaces (return bends, catalyst transport pipelines); FCC systems (feed nozzles, regeneration air nozzles, grating nozzles); valves (valve seats, sliding plates, flow control components); and other applications requiring automated hardfacing and repair in environments where high wear and corrosion coexist.
