Material Used for Manufacturing of Blades

These should do the job.

Select a suitable blade HERE

I think OP wants to make his own blades.

Hard to tell from the post.

Most likely, the OP wants to pick-up some suitable steel, from scrap yard & make some knives, for his intended purpose.

There are thousands of metal suppliers, all over the world.

Since we have no idea where you are, maybe you should contact a local supplier of metals.

1. Online Metal Store | Small Quantity Metal Orders | Metal Cutting ...
2. METAL SUPERMARKETS - Buy Metal Online - Small Quantity ...
3. Or go here and search:Search GlobalSpec for metal suppliers

The easiest way is to just buy a tyre shredder.

For example

Link

Cr6 are used to cut the rubber but you have to calculate the blade thickness as per your rubber thickness ,many chinese companies can make it as per your design and specs.regards

The blades will need to be heavy, or attached to a heavy arbor. The blades will need to be carbide or similar materials. The steel cords in tires is tough, and will dull standard steel blades in short time.

Many years ago I worked as an apprentice for an engineering company in West Yorshire UK. The Managing Director pioneered a manually operated system to remove and recoup rubber from old tires using a high velosity spiky wheel with pins inset. It recovered 95% of the rubber from a standard car tire in less than 5 minutes without any noticeable charring or smell.