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.
The Acro-Matic YT1050 can be supplied in either rotary or linear format. The rotary option suits all ¼ turn applications such as rack and pinion and scotch yoke actuators whilst the linear is easily adaptable to diaphragm control valves and linear pneumatic cylinders.
The enclosure consists of 316 Stainless steel which is suitable for the most corrosive environments and has an IP66 ingress protection rating.
The strength of the chemicals sector was definitely reflected at the recent Achema show from 18-22 June 2012 in Frankfurt, Germany (info: www.achema.de). By the final day, it was clear that visitor and exhibitor numbers had remained stable: during the five days, 167,000 participants visited some 3,773 booths, occupying 136,400 m² of floor space. And with almost 50% foreign exhibitors, this was the most international Achema ever. The Stainless Steel World TV Team spent a couple of days in Frankfurt, interviewing standholders with a clear interest in corrosion resistant alloys.
Outokumpu LDX 2101® material has been officially approved for use when building pressure equipment. Fabricators can refer to the European Approval of Material (EAM) to show conformity with the European Pressure Equipment Directive (PED) when using flat LDX 2101® ≤10 mm.
Technip has been awarded a large subsea installation contract by Shell Development (Australia) Pty Ltd for the Prelude Floating Liquefied Natural Gas (FLNG) facility moored some 200 kilometers off the north west coast of Australia, in the Browse Basin, at a water depth of approximately 240m.
Air valves are normally required on piping systems, for example, offshore fire fighting systems, to vent air from a pipeline/riser on pump start-up and admit air back into the system under vacuum conditions. Often they are overlooked, yet play a crucial role within a pipe/pump system. It is important that they are correctly specified with their function, size and location to help in ensuring that the system is operating efficiently.
Corrosion is a pervasive problem that costs 3% or more of GDP for most developed nations. Sustainable solutions exist and the World Corrosion Organization (WCO) has dedicated 24 April 2012 to raising awareness about the impact of corrosion on people, infrastructure, economies, and the environment, and what can be done to prevent and control it.
The Pumps & Valves 2012 event, which was held on 18 and 19 April in Antwerp, Belgium, was a focal point for many industries and flow control experts in Belgium, Holland, and even Northern France.
Hamilton Metals, one of the largest stocking distributors of Corrosion Resistant Alloys (CRA) for the exploration and production industry, has opened a new stocking facility in Edmonton, Alberta.
Baker Hughes has expanded its pipeline service portfolio to include circumferential magnetic flux leakage (MFL) inspection technology, which allows pipeline operators to identify anomalies in pipeline long seams and more effectively manage the risk associated with cracks in long seam welds and the overall integrity of their pipeline assets.
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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