CPM M4 .290" - Sold in 10" Lengths
We buy this in 30" lengths and sell it in 10", 20", and 30" lengths.
If you buy 1ea, you will get a stick 10" long by the width and thickness shown.
If you buy 2, you will get a bar that is 20" in length.
If you buy 3, you will get a bar that is 30" in length.
**If you buy 2,or 3 and want it cut into 10" length pieces, please specify in the comments section that you would like them cut into 10" pieces.
**Advertised price is for 1qty 10" piece
This steel is the king of cutting competitions. I have these bars cut at 30" for cutting competition so you can get 2 pieces of " max legal length" 15" from one bar with no waste.
Go to www.KnifeDogs.com for the heat treat and data sheet.
The content of the steel is:
S .06 max
W 5.60 (wolfram or Tungsten)
CRA means cold rolled annealed and is important to be in the description. It means the steel was pressure rolled while cold but was annealed again to relief the stress and take it to the softest state from rolling under tremendous pressure.
HR means hot rolled and this steel was rolled to thickness usually during the smelting process but maybe later. The steel generally will be half or nearly fully hard depending on the type. It may often have mill scale residue. This steel can be easily forged. It can also be ground via stock removal. Drilling a hole in the tang maybe hard to do with out a carbide bit.
HRA is the same but the steel was later annealed to relieve stress and make it as soft as possible for easier machining.
Several companies produce "powder" smelted steels. This is a premium smelting process that improves the mixing of alloy content and generally produces a finer grain structure as a result. The powder steels are nearly always annealed and can be assumed to annealed unless noted otherwise.