Developed and manufactured to high quality standards, this forge-welded steel is perfect for producing high-quality knives using the stock removal process. Thanks to its outstanding toughness with a hardness range of 63-68 HRC, ApexUltra surpasses other steels with such high hardness.


 
 
Recommended hardness range of the cutting edge layer: 63-68 HRC. With ApexUltra core layer, copper diffusion barrier, and copper Damascus cladding.
 
 
After forge-welding and forging/rolling, we normalize, grain refine, and anneal the steel to save you these time-consuming steps as a knifemaker and achieve the best possible performance from the steel. This means you can start sawing or grinding the contour directly.
 
 
To bring out the natural texture of the steel, we gently remove the scale instead of simply grinding the surface.
 
 
We straighten the steels as best we can during this step. Fine-straightening can still be beneficial after contour grinding and before hardening.
 
 
Recommended hardening: 830°C for 10 minutes, quenched in medium or fast oil. Temper at 175°C for 2 x 2 hours, with cooling to room temperature before each tempering cycle. Further information on hardening can be found in the ApexUltra data sheet: [https://www.apexultrasteel.com/downloads].
 
 
The cutting edge layer makes up approximately 30% of the material thickness.



This is a raw material for the production of knives using the stock removal process. The images of the knives are merely examples of the use of this steel; the knives are not part of the article offered here. The steels offered are not stainless. Copper can react with acidic foods.