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  • Why nickel alloy is more expensive?

    Nickel is a ferromagnetic metal element with excellent properties such as corrosion resistance, high temperature resistance, oxidation resistance and good ductility. It is widely used in metallurgy, chemical industry, aerospace and other fields. It is an important raw material for the preparation...
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  • How to identify inferior stainless steel welded pipe?

    How to identify inferior stainless steel welded pipe?

    1. Folding Fake and inferior welded stainless steel pipes are easy to fold. Folding is a variety of fold lines formed on the surface of stainless steel pipes. This defect often runs through the longitudinal direction of the whole product. The reason for folding is that fake and inferior manufactu...
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  • Classification Of Welding Technology

    Classification Of Welding Technology

    Directly welded pipes: the use of small size model can avoid stress corrosion, hot cracks and deformation, and the welding current is 20% lower than that of high carbon steel. In order to ensure the ignition of the electric arc, the DC reverse connection is adopted. The short arc welding strategy...
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  • Common Flaw Detection Methods For Welded Pipes

    Common Flaw Detection Methods For Welded Pipes

    In the process of manufacturing and using welded pipe, nondestructive testing to ensure weld quality is particularly important. The common nondestructive testing methods for welded pipes are: ultrasonic testing, off-line magnetic flux leakage testing and eddy current testing; Ultrasonic flaw dete...
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  • What is Penetrant Testing?

    What is Penetrant Testing?

    Penetrant testing (abbreviated as PT) is a nondestructive testing method for inspecting surface opening defects based on the principle of capillary action. This method is one of the five conventional nondestructive testing methods and is a comprehensive science and technology. Like other nondestr...
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  • The most widely used NDT: Radiographic Testing

    The most widely used NDT: Radiographic Testing

    Radiographic testing (RT). Radiography (RT) is a nondestructive testing method that uses X-ray or g-ray to penetrate the test piece and film as the equipment for recording information. This method is the most basic and widely used non-destructive testing method.   Principle of Radiographic I...
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  • Will stainless steel rust? Yes!

    Will stainless steel rust? Yes!

    When there are brown rust spots on the surface of stainless steel pipe, people are surprised: they think that “stainless steel is not rusty, rusty is not stainless steel, maybe there is a problem with the steel”. In fact, this is a one-sided wrong view of the lack of understanding of ...
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  • NDT Method: Eddy Current Testing

    NDT Method: Eddy Current Testing

    Based on the principle of electromagnetic induction, the nondestructive testing method is called nondestructive testing, which can nondestructive evaluate some properties of conductive materials and their workpieces by detecting the change of induced eddy current in the tested workpieces, or find...
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  • What is Ultrasonic Testing?

    What is Ultrasonic Testing?

    Ultrasonic testing is mainly used to detect buried defects in butt welds and cracks on the inner surface of pressure vessel welds. It is also used to detect possible cracks in Pressure Vessel Forgings and high-pressure bolts. Ultrasonic testing can be divided into ultrasonic testing, ultrasonic t...
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  • What are the types of welding?

    What are the types of welding?

    Welding: usually refers to the welding of metal. It is a forming method to connect two separated objects into one by heating or pressurizing, or both at the same time.  Classification: according to the different heating degree and process characteristics in the welding process, the welding method...
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  • Why should steel pipes be heat treated?

    The function of heat treatment is to improve the material mechanical properties of steel pipe, eliminate residual stress and improve its cutting performance. According to different purposes of heat treatment, heat treatment process can be divided into two categories: preliminary heat treatment an...
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  • Honeywell’s company came to our factory to investigate cooperation

    Honeywell’s company came to our factory to investigate cooperation

    Recently, the three guests of Sinochem Honeywell New Material Co., Ltd., named "Zhonghuo new material", have come to our NICKEL ALLOY SUPPLIER, ERAUM, the Sinochem Honeywell New Material Co., Ltd. is a joint venture invested by Sinochem Group (the world's top 500 company...
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