Areas of use for hardened stainless steel in food technology

In food technology, high demands are made of the material properties of parts and components. Robust, corrosion-resistant and easy to clean materials are required that change neither the colour or the taste of a product when they come into contact with foods. Corrosion-resistant stainless steel has these properties. For this reason, stainless steels such as 1.4401 (AISI 316) or 1.4404 (AISI 316L)  are widely used and popular materials in the food industry.

food technology

They are used, among other things, for media transportation and the processing of food in machines, for food-safe containers (e.g. tanks and vessels) for appliances such as mixers, pumps, dosing systems, kneading machines and for equipment in industrial kitchens. Every user has met stainless steel varieties used, for example, as cooking utensils or cutlery in a private home. The majority of employed stainless steels have a chrome content of at least 18{585951d0fcc0c749411be0a5fd3e366fbe1c7e17eef780b495308f46ee7cac3d} and a nickel content of 10{585951d0fcc0c749411be0a5fd3e366fbe1c7e17eef780b495308f46ee7cac3d}. This alloy composition has proved advantageous, in view of corrosion-resistance towards various food and drinks. Generally speaking, the greater the hardness of a material, the more robust the material is when it comes to mechanical loads. Stainless steel varieties such as 1.4301 (AISI 304), 1.4401 (AISI 316), 1.4404 (AISI 316L)  have a low resistance to abrasive loads. The use of the BORINOX® hardening procedure increases the surface hardness by many factors, without having a negative effect on the corrosion properties and also helps to make products that are longer-lasting, production-safe and cost-optimised.

In which areas can BORINOX® be used?

The hardening of stainless steel using the BORINOX® procedure is employed in many sectors of the food industry. Components exposed to high mechanical loads, in particular, are treated. Hardened parts are employed in processing systems for the production of chocolate, in filling systems in the drinks industry, in dosing pumps for yoghurt packaging, in mixers and stirrers, to name but a few of the wide range of uses.

How does hardening stainless steel help?

The treatment of stainless steel with the BORINOX® hardening procedure from BorTec may significantly extend the durability and lifetime of the processed components, which would otherwise be subject to erosion, corrosion, adhesion, oxidative wear or cavitation. In doing so, the corrosive properties of the processed material are retained and are not affected by the procedure. The improvement in the surface hardness makes the material more robust and more resistant to any type of external load.

These materials can be hardened with the BORINOX® procedure

The BORINOX® hardening procedure can be used to treat all stainless steel varieties used in the food industry. It does not matter whether the steels are ferritic, martensitic, austenitic or duplex. Due to the high chrome and nickel proportions, austenitic qualities such as 1.4301 (AISI 304), 1.4401 (AISI 316), 1.4404 (AISI 316L), 1.4435 are preferred. More information can be found here.