Heat treating and tempering a kitchen knife blank

[idan]

Hello, I'm pretty new to knife making and I wanted to make my own high carbon steel knives. I bought these blanks from eBay (http://www.ebay.com/itm/5-Sabatier-...arbon-Steel-/151630461937?hash=item234de13bf1) and was wondering if you think I need to temper and heat treat them or I can just grind and sharpen them and use them as is.

Thank

 

[Don Nguyen]

You will find more help at ShopTalk, but those will need to be heat treated.

 

[idan]

I'm new here so sorry if it's obvious, but whats ShopTalk?

 

[Don Nguyen]

ShopTalk is the knifemakers' subforum to talk about making stuff: http://www.bladeforums.com/forums/forumdisplay.php/741-Shop-Talk-BladeSmith-Questions-and-Answers

 

[Darrin Sanders]

He says that they're straight from the forge and can be straightened by hand. This means that they are not hardened and tempered. If they are indeed straight from the forge then they would need to be Normalized and thermal cycled too. The problem is that he doesn't list the steel type/grade and without that important little piece of info. you wouldn't know how to properly do anything as far as Normalizing, thermal cycling/grain refinement, hardening, or tempering.
That's a lot of money to spend for 5 blades that are basically a mystery. I suggest that you spend that money on some 1084, 1095, or 15N20 from Aldo Bruno. That same amount would get you enough steel to make 20+ blades from a steel that you have no doubts about. Here is a link to Aldo's site. http://newjerseysteelbaron.com/shop/1095hc/

Good luck.