Corrosion

Definition of Corrosion

Corrosion is defined as a refined metal that is naturally converted to a more stable form such as its hydroxide or sulphide state. Metal corrodes when it reacts with another substance such as oxygen, hydrogen or bacteria. Corrosion can also happen when metals are placed under too much stress causing the material to crack. Corrosion leads to deterioration of the material.

Stainless steel is highly corrosion resistant, making it suitable for use in environments where exposure to moisture, chemicals, or harsh conditions such as salt water is expected.

In this section you can find newsitems related to all types of corrosion such as stress corrosion cracking, intergranular corrosion, pitting, and corrosion fatigue. If you wish to include your news release on our website and email newsletter, please feel free to contact the editor.

New tubular supplier

Special Metals Corporation has a new focal point for the supply of its oilfield tubulars, products that withstand the most severe conditions in oil and gas fields around the world.

Clear water, clear evidence

A carefully drilled 1mm hole in the rear mid-frame of a 12 year-old Duple 425 coach has provided evidence of the zero-corrosion performance of 3CR12 stainless steel.

Dives in Misericordia

“Dives in Misericordiaâ€? church, designed by architect Richard Meier, opened in Rome on 26 October 2003 to mark the 25th anniversary of the Pontificate of Pope John Paul II.

ISSF at SAE 2004

ISSF is to participate on the panel at SAE 2004 World Congress.

Big knife valve

Stainless Valve has introduced its 48" big knife valve.

Kitz develops stainless steel

Kitz Corporation has developed a duplex phase stainless steel that has achieved lower production costs compares to Single Phase Stainless Steel ASTM A351 CF3M.

Welding consumables for exhaust systems

Although today’s car fuels are very low in sulphur, a certain amount of sulphur dioxide remains present in the exhaust gases.

Stainless automotive meeting

The International Stainless Steel Forum will facilitate the first technical session devoted entirely to automotive applications for stainless steel at the Society of Automotive Engineers (SAE) World Congress, 8–11 March 2004.

Sandvik and Philips in shaver development

Philips and materials specialists from Sandvik Materials Technology have collaborated to develop and manufacture of a new stainless strip steel, Sandvik Nanoflex, for use in shaver components.

Actuator for food and chemicals

Danaher Motion has introduced two new linear actuators to its Movopart range, part of the Thomson Tollo brand.


Corrosion can be a big problem because it can cause significant damage and deterioration to various materials, particularly metals. We have listed below several reasons why corrosion is a significant concern:

Structural Integrity: Corrosion weakens the structural integrity of materials. When metals corrode, they lose their strength and load-bearing capacity, which can lead to failures and collapses in infrastructure, buildings, bridges, pipelines, and other critical structures.

Economic Impact: Corrosion imposes substantial economic costs. The direct expenses associated with corrosion include repairs, replacements, and maintenance of corroded structures and equipment. Additionally, there are indirect costs such as production losses, decreased efficiency, and increased energy consumption due to the effects of corrosion on industrial processes and machinery.

Environmental Consequences: Corrosion can have adverse environmental effects. For example, in the case of pipelines, corrosion can lead to leaks and spills of hazardous substances, causing soil and water pollution and damaging ecosystems.

Health and Safety Risks: Corrosion can create health and safety risks in various ways. For instance, when corrosion affects pipelines or storage tanks carrying toxic substances, it can lead to leaks or releases that endanger the health of workers, communities, and the environment.

Maintenance and Downtime: Corrosion necessitates regular maintenance and inspection programs to detect and mitigate its effects. This requires significant time, effort, and financial resources. Additionally, when corrosion-related issues arise, it often requires shutting down operations, causing downtime and productivity losses.

Given these reasons, it is crucial to understand and address corrosion through preventive measures, protective coatings, corrosion-resistant materials, regular inspections and testing (ASTM B117), and appropriate maintenance practices to mitigate its impact and ensure the longevity and safety of structures and equipment.