Breaker Points for knives?

[Demo_Eng]

I am trying to find alternative to the standard O1, D2 and other stock tool steel for materials to make the knives. I also work within the demolition industry and have an abundance of used breaker points of all sizes from about 1/2" to 9" diameter, our larger machine has even bigger but they are a bugger to lift let alone try to do anything with.

I know the breaker points must be of a good quality steel, which are hardened to withstand the work to which they are subjected. This leads me to believe there is potential for a source of an alternative material.

It is intended that the points are forged into shape, before being re-hardened and tempered.

I have tried the same with the worn diamond cutting wheels, with various levels of success, but the manufacturers would not provide any indication of the steel or the their treating process other than to say they were high carbon steel for fear of 'other manufacturers copying'.

What is peoples thoughts on this?

I hope you can help in this