Stainless steel balls (Source Wikipedia)
Stainless steel (according to EN 10020) is a designation for alloyed or unalloyed steels with a special degree of purity, for example steels whose sulphur and phosphorus content (so-called iron companions) does not exceed 0.025 %.
The sole definition of a stainless steel as a “chemically particularly pure”, “rust-free” or “stainless” steel is imprecise or incorrect. A stainless steel does not necessarily have to meet the requirements of a rustproof steel. Nevertheless, only stainless steels are often referred to as stainless steels in everyday life. Likewise, a stainless steel does not necessarily have to be a stainless steel. However, the alloy component content of the various types of stainless steel (low-alloy or high-alloy) is precisely defined.
Stainless steel balls are also manufactured in accordance with DIN 5401. Contrary to the outdated DIN from 1976, the quality is now as specified in the DIN for steel balls. The production of stainless steel balls is very similar to that of balls made from rolling bearing steel. Caution is only required when hardening and machining the diameter due to the different properties. In principle, the balls cannot be manufactured as precisely as balls made from materials with hardnesses above 60 HRC.
Only 4 materials are used as standard in the production of balls.
Balls stainless steel unhardened 1.4301
Stainless balls unhardened 1.4401
Click on the individual materials to obtain further information, which can also be downloaded as a data sheet
