4034 stainless steel is a steel made by Thyssen-Krupp, a German steel manufacturer. It has a moderate carbon content of 0.5%, which makes it softer than most other steels. It also has a high chromium content of 14.5%, which gives it good corrosion resistance. It is used for making knives, such as diving, folding, kitchen, and utility knives.

Hardness: It has a hardness of 54-58 HRC on the Rockwell scale, which is similar to other soft steels like 420HC. This means that it is easy to sharpen.

Toughness: It has a high toughness, which means that it can withstand pressure and stress from tough applications without breaking or chipping. This is due to the high chromium content, which also improves the hardenability of the steel when heat-treated.

Wear resistance: It has a low wear resistance, which means that it is prone to abrasion and erosion from friction and contact with other materials. This is because it lacks other elements that contribute to wear resistance, such as molybdenum or vanadium.