01 carbon tool steel

Why don't you take a look at the Dutch knife forum ?
The good people there will help you find the right places,
 
If you are pretty new to knife making i suggest buying 1084 steel instead because of how easy it is to heat treat. Try NJsteelbaron or texasknifesupply
 
O-1 isn't from saw blades.

O-1 is a common Oil Hardening steel - thus the "O". It has about .95-1.00% carbon plus a little chromium and some tungsten/vanadium. That makes it a Cold Work Tool Steel. It makes a great knife, and the HT is fairly simple. The steel is available from most any knife supplier ( Jantz, TKS, USA, Alpha, etc.), industrial supplier ( McMaster-Carr, Starrett, etc.), metals supplier,...and of course Aldo.

You don't "need" O-1 steel to make a good knife . If your equipment is simple, 1084 is a better choice, but O-1 will still work. The difference is that to get the chrome and tungsten into solution during HT, you have to hold the O-1 at around 1450°F for about 5-10 minutes. That is hard to do without the proper equipment. 1084 can be heated to about 50-100° above non-magnetic and quenched in oil with excellent results.
 
Not gonna find 1084 there. They should have something close to a 1070, 1080, 1084 type steel.
 
in the EU i use corus/tata , check with them they will have what your looking for....cost might be an issue and i'm unsure of minimum purchase qty...and pretty sure they have a dutch manufacturing plant...
 
O1 is the AISI designation. The Werkstoff Number for the equivalent steel is W 1.2510. In Europe, you may have more luck looking for it under that.

In the UK, Cromwell sell it as "Ground Flat Stock", as do many other engineering suppliers. It's precision ground to thickness and available in both Imperial and Metric sizes (at least, it is in the UK). http://www.cromwell.co.uk/index.php?q=0&p=browse&c=160202

You may also find it described as 100MnCrW4
 
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