Steel Surface Quality Inspection

    ① Artificial visual inspection: lighting conditions, standards, experience, logos, pipe rotation.

    ② NDT inspection.

    a. ultrasonic testing UT

    More sensitive to a variety of materials uniform surface cracks and internal defects in materials.

    b. electromagnetic induction eddy current testing ET

    Mainly point (hole shape) defect sensitive.

    c. Magnetic MT and magnetic flux leakage inspection

    Magnetic detection for detecting surface and near surface defects in ferromagnetic material.

    d. electromagnetic ultrasonic testing

    Does not require a coupling medium, it can be applied to high temperature and high speed, rough dry pipe surface inspection.

    e. penetrant inspection

    A fluorescent, colored, testing of steel surface defects.

    Check www.tjxysteel.com for more info

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