Resistance to cracking. Part one: what is it?

Resistance to cracking. Part one: what is it?

31-03-2019
The mythical toughness  of steel for knives, everyone has heard about it, nobody has ever seen it. Impact strength is the material's resistance to cracking under sudden, rapid load / impact. This is the effort required to break a standardized sample, on a standard machine, under standardized...
Hardness. Part two: why it needs to be known and measured?

Hardness. Part two: why it needs to be known and measured?

09-03-2019
"But why do I need all of this information, how is it related to using knives?” The higher the hardness, the higher the resistance to the Cutting Edge (CT) deformation. Because it may seem that we use a low force on the material we are cutting, but that's not the case. The Cutting Edge is...
Hardness. Part one: hardness measurement.

Hardness. Part one: hardness measurement.

11-01-2019
Hardness. Part one: hardness measurement. Almost every material can be sharpened to cut. Many of us have cut our hands with a soft sheet of paper! You can sharpen the bottom of your bean can to shave your hair from your arm! But sharpness is one thing, and how long you can use it is another. How...
Rusting steel and stainless steel

Rusting steel and stainless steel

18-11-2018
Steel has many advantages, but its great disadvantage is the lack of corrosion resistance. Under the influence of Oxygen (O2) and Water (H2O), rust forms on the steel surface. The knife rusts in your pocket! Fig. 1 Rust on steel [2] The element that most strongly affects the corrosion...
Elements in steel. Part Three: Alloy elements.

Elements in steel. Part Three: Alloy elements.

18-09-2018
Alloy components are added to the steel to change its properties, however, they are not used to deoxidize the steel, they are too expensive to do so. Chromium (Cr) is the basic and most important alloy element in tool steels and structural steels used for making knives. It is so, because it is...
Elements in steel. Part two: steel additives.

Elements in steel. Part two: steel additives.

03-08-2018
In steel  besides Carbon (C) (and of course Iron (F)!), polluters, we can also observe the occurrence of  alloy elements which improve the properties of the steel. These are the reasons why alloy steels are better than a pure alloy of iron with carbon. The first group consists of admixtures...

New products

FOLDING KNIFE SLIM 5 HERMAN
Add to basket

Recommends