The development of PVD coatings on titanium valve seats created a new challenge for cylinder head developers. The ultra hard PVD coated surface of the valve seat was demolishing the standard soft valve seat materials found in performance cylinder heads. Beryllium enhanced seats worked better, but nobody wants to deal with the dangers of working with Beryllium. We can supply Non-Beryllium Copper Alloy Valve Seats AKA NBC One, with these seats nickel and silicone have replaced the Beryllium to create a hard wearing highly heat conductive copper alloy material.

What Makes NBC One Alloy Valve Seats Better?

Beryllium-Free copper alloy enhanced with nickel and silicone for wear toughness. Excellent thermal conductivity. Highly compatible with PVD and DLC seat coatings. Nickel and silicone enhanced for toughness against our MICRO-PVD coating. As the engine is initially run a nikasil type matrix forms on the seat surface. Then nickel silicon matrix is very hard, but it is comparatively ductile. The copper composition of the seat acts as cushion to deter valve bounce. Custom sizes are no problem. High thermal conductivity. High Hardness. Resistance to corrosion and wear.

Ordered & Manufactured to customer specifications.