Rust is a specific form of corrosion that occurs in iron and steel. Corrosion, on the other hand, is a general term for the decomposition of materials through chemical reactions. This article explains the differences between rust and corrosion, their effects on materials and protective measures. Corrosion protection is critical to the longevity and reliability of hydraulic systems and other industrial applications.

• Definition: Rust is the result of an electrochemical reaction between iron, oxygen and water.

• Chemical processes: This reaction leads to the formation of iron oxides known as rust.

• Examples: Rusty nails, tools and vehicles.

• Effects: Rust can significantly affect the structural integrity of materials.

• Definition: Corrosion is a general term for the decomposition of materials through chemical reactions with their environment.

• Types of corrosion: galvanic corrosion, pitting corrosion, crevice corrosion.

• Examples: Tarnishing of silver, rusting of iron, decomposition of concrete.

• Effects: Corrosion can occur in a variety of materials, including metals, plastics and ceramics.

• Chemical processes: Rust is a specific form of corrosion that only occurs in iron and steel, whereas corrosion is a general term for the decomposition of materials.

• Affected materials: Rust only affects iron and steel, while corrosion can occur in many different materials.

• Effects and protective measures: Rust can significantly affect the structural integrity of iron and steel, while corrosion can have different effects depending on the material. Protective measures against rust include the application of protective coatings and the use of rust inhibitors, while anti-corrosion measures can vary depending on the type of corrosion.

Rust and corrosion can significantly impair the service life and functionality of materials. In hydraulics and mechanical engineering, corroded components can lead to system failures and high maintenance costs. Practical examples show that corrosion-protected materials last longer and are more reliable.

• Preventive measures: Regular inspections and maintenance, use of protective coatings and rust inhibitors.

• Technologies: Use of corrosion-resistant materials, application of cathodic protection and electrochemical protection methods.

• Products and solutions from STAUFF: STAUFF offers a wide range of products and solutions to combat corrosion, including protective coatings and corrosion-resistant components.

Rust and corrosion are significant challenges to the longevity and reliability of materials. While rust is a specific form of corrosion that only occurs in iron and steel, corrosion can occur in many different materials. The negative effects of rust and corrosion can be minimised by taking appropriate protective measures, and STAUFF offers a variety of solutions to effectively protect materials from corrosion and extend their service life. The comparison below shows STAUFF components and components from the competition after a test in the salt spray chamber. Thanks to the zinc/nickel coating, many of our components are more durable and resistant.

Newsletter subscription

Subscribe now and don't miss any new articles!