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.

    ChTPZ masters the production of stainless steel pipes

    ChTPZ masters the production of stainless steel pipes

    Stainless Steel World Publisher -
    At Pervouralsk Novotrubny Plant, a new type of import-substituting stainless steel pipe products was developed and delivered to the client.

    Development of China’s marine stainless steel: Naifen

    Stainless Steel World Publisher -
    Tan Naifen, Deputy Secretary-General and Director of the Statistical Information Department of China Shipbuilding Industry Association, introduced the application and development status of China’s marine stainless steel at the Stainless Steel Online Lecture and Last Online Metal Week hosted by the Stainless Steel Branch of the China Special Steel Enterprise Association.
    Sandvik launches Sanicro® 35

    Sandvik launches Sanicro® 35, a super-austenitic grade

    Stainless Steel World Publisher -
    Sandvik, a developer and producer of advanced stainless steels, special alloys, titanium and other high-performance materials, has launched Sanicro® 35, a unique grade that bridges the performance gap between stainless steels and higher cost nickel alloys.
    Nickel Institute publishes a guide on alloy selection

    Nickel Institute publishes a guide on alloy selection

    Stainless Steel World Publisher -
    The Nickel Institute has published the latest in a series of updated technical publications aimed at helping engineers and specifiers select corrosion-resistant materials.
    Focus on welding duplex at Duplex World 2021

    Focus on welding duplex at Duplex World 2021

    Stainless Steel World Publisher -
    While duplex stainless steels are strong and versatile materials, they need to be treated with respect during welding. At Duplex World 2021 (24 & 25 February, RDM Rotterdam, the Netherlands), two separate sessions will cover this important topic.An interactive workshop on 24 Feb, titled 'Welding & special treatments' will begin with a discussion of duplex/ super duplex GTAW pipe welding.
    ExOne certifies Inconel 718 as Third-Party Qualified

    ExOne certifies Inconel 718 as Third-Party Qualified

    Stainless Steel World Publisher -
    The ExOne Company announced that the nickel-based alloy Inconel 718 has been certified as Third-Party Qualified, the company’s highest designation of material readiness for its metal 3D printers.
    BUTTING produces GluBi® pipes from July 2020

    BUTTING produces GluBi® pipes from July 2020

    Stainless Steel World Publisher -
    From July 2020, BUTTING produces GluBi® pipes, glue bonded mechanically lined pipes, for a customer project for the first time.
    ISSF republish a paper on Stainless Steel in Filtration

    ISSF republish a paper on Stainless Steel in Filtration

    Stainless Steel World Publisher -
    The International Stainless Steel Forum has republished its document on Stainless Steel in Filtration. A wide panorama of stainless steel usage in filtration applications is available ranging from the oil and gas industry, water applications, filtration of air, filtration in food and beverage and automotive applications.
    Rolling mill stand geometry for maintenance of the mill

    Rolling mill stand geometry for maintenance of the mill

    Stainless Steel World Publisher -
    Correct mill stand geometry is essential for effective and accurate gauge control, strip/plate quality and maintenance of the mill and its associated parts, like bearings, chocks, hydraulic clamps, bending and balancing systems as well as gauge control systems.
    Sandvik receives two awards from NACE International

    Sandvik receives two awards from NACE International

    Stainless Steel World Publisher -
    NACE International recently awarded its 2020 Distinguished Organization Award to Sandvik Materials Technology, and Sandvik’s Ulf Kivisäkk was also awarded the NACE Technical Achievement Award.
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    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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