Magnetic particle inspection is a method used to detect surface and near-surface discontinuities in ferromagnetic materials. However, simply finding an indication isn't enough; an inspector must determine if it is relevant (a defect) or non-relevant (such as magnetic writing or a change in section).
(referred to as Plates) that categorize discontinuities by type and severity: GlobalSpec Plate 1: Linear Discontinuities – Covers cracks and other elongated surface flaws. Plate 2: Shrinkage and Inclusions
: The photographs are often provided on four large charts (Order ) for easy comparison in industrial settings. Educational Summaries : Organizations like the Steel Founders' Society of America (SFSA)
The photographs are graded on a severity scale, typically .
: High-resolution JPEG files suitable for viewing on computers or printing. Standard Usage and Classification : These photographs act as a visual baseline for acceptance criteria agreed upon between manufacturers and purchasers.
In the world of Non-Destructive Testing (NDT), precision and consistency are everything. When inspecting ferrous castings, technicians often rely on , a critical standard titled the