Ofrecemos dos tipos de bolas de acero inoxidable de características diferentes: uno templado y el otro no templado. De modo que puede elegir en función del uso que vaya a darles.

Bolas de acero inoxidable templado

The stainless steel balls Hardened are manufactured through a series of martensitic processes, consisting of adding carbon to the base material to increase its resistance to external influences. To further improve their resistance, these tempered stainless steel balls are usually supplied in a passivated state, that is, with an additional micro coating.

Generally, this type of stainless steel ball can be found in the industrial sector, in specialized pumps, lighters, pens, in short, in cases where friction forces are involved.

Non-hardened stainless steel balls

As for non-hardened stainless steel balls, they are obtained through austenitic processes, which add a layer of Nickel or Copper to the material. This is a type of steel ball that is much more malleable than tempered stainless steel balls. However, they have lower corrosion resistance than tempered balls. They are usually found in electronic components.

Categories of stainless steel balls

Broadly, there are three main categories of stainless steel balls. These are different degrees:

• Austenitic: still called by the term “300 series", this family of stainless steel balls is used for stainless steel applications. with a very high corrosion resistance (the highest of all grades). Its use is strongly recommended in the food sector. Due to its composition, this grade of steel has good resistance to water, oil, alcohol, oxidizing solutions, organic chemicals and even sulfuric acid. This grade has very low ferromagnetism and low hardness.
• – Martensitic: This grade has good corrosion resistance as well as notable hardness. Its ferromagnetic properties allow it to be used in water, oil, steam and alcohol. This quality of stainless steel ball is usually used in situations that require the presence of properties such as hardness and wear resistance.
• Ferritic: This family has good resistance to corrosion, stress corrosion cracking and oxidation. It has ferromagnetic properties. However, its hardness is low and it is not possible to reinforce it through thermal processes. Its corrosion resistance is lower than that of austenitic balls, but higher than that of martensitic balls.

Stainless steel precision balls are mainly used in ball bearings or ball screws. This type of ball stands out for its great resistance to corrosion.