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.
JFE Steel Corp. has decided to increase production capacity for seamless 13% chromium oil country tubular goods (13%Cr OCTG) by approximately 30% at its Chita Works’ small diameter seamless pipe mill in Japan.
In situations where, foremost, the required weld joints must exhibit strength, integrity and corrosion resistance, such as for thick walled components for super critical power plants or nuclear power plants, the application of hot-wire Gas Tungsten Arc Welding (GTAW), specifically GTAW Narrow Gap Welding (GTAW – NG), is finding increased use.
James Walker’s new Moorflex flange protectors provide a system to boost the efficiency, safety and life of process industry pipelines with corrosion reduction and easier disassembly of joints.
APM Hexseal has released a new transparent sealing boot designed to fit today’s compact, lever-operated circuit breakers with a 42.17mm centre-to-centre distance between mounting screws and a 19.05mm centre-to-centre spacing between breaker poles.
Made entirely from 316 stainless steel, the new Kirk 316 Series of trapped key interlocks is suitable for applications that require resistance to high temperature and/or corrosion.
Parker Instrumentation has extended the versatility of its one-piece clamp for instrumentation tubing Snap-Trap, with a new fitting tool and accessories.
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.
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