M390 .139" x 4"
We buy this in 36" lengths and sell it in 12", 24" and 36"lengths.
If you buy 1ea, you will get a stick 12" long by the width and thickness shown.
If you buy 2, you will get a bar that is 24" in legnth.
If you buy 3, you will get a bar that is 36" in legnth.
**If you buy 2 or 3 and want 12" length pieces, please specify in the comments section that you would like them cut into 12" pieces.
**Advertised price is for 1qty 12" piece
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.