(NEW!) CPM-S45VN *Surface Ground Bar Stock HRA .187" - See Length Note
CPM-S45VN Bar Stock
We buy this in 36" lengths and sell it in 12", 24", and 36" lengths.
If you buy 1, 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 length.
If you buy 3, you will get a bar that is 36" in length.
**If you buy 2 or 3 and want it cut into 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
- Surface Ground
- Ground to specified thickness with tolerance of plus .010"
Composition of CPM S45VN Steel
CPM S45VN is the updated version of CPM-S35VN. The chemistry has been rebalanced to improve corrison resistance, wear resistance and edge retention. It also has increased Carbon and a some Nitrogen added to allow for higher hardness than CPM S35VN. Toughness is better than CPM S30V, but slightly less than CPM-S35VN.
Link below has comprehensive heat treat information and much more from www.knifesteelnerds.com
Heat Treatment for CPM S45VN
Wrap blade in stainless steel heat treat foil
Bring to 1550/1600F and equalize (let it soak for 10 minutes)
Bring it up to Austenitizing temp 1900 - 2000F and hold for 15 - 30 minutes
Quench in air or plate quench.
A Cryo treatment in liquid nitrogen (or dry ice) before tempering will increase hardness
Temper between 300F to 500F twice at 2 hours each time. Cool to room temperature in between tempers.
Austenitizing at 2000F followed by a Cryo treatment and tempering at 400F should result in a hardness of 61-62 HRC