HR4B Grade Ferrites

STE is the Exclusive distributor of HR4B ferrite cores, a grade of ferrite specifically designed for the HF welding process and developed to exceed the performance of established ferrites like TDK IP-H. We have extensively tested this ferrite at major tube production plants in Europe and achieved results that have exceeded expectation.

HR4B has the widest size range available anywhere in the world with single cores available from 3mm up to 102mm diameter! With large individual pieces of ferrites they are more robust, increase ferrite mass in within the impedor and make changing/rebuilding assemblies so much easier than multiple small pieces.

Our ferrite has the LOWEST Losses meaning that HR4B can maintain high operational specifications at higher temperatures than other ferrite cores.