A Check For Relevant Discontinuities

Magnetic particle testing is used to reveal surface and near-surface discontinuities in ferromagnetic materials. It is one part of an inspection plan, not a measurement of every property of a fastener.

Define The Inspection Requirement

Agree the inspection method, extent, acceptance criteria and required report with the order. The part geometry and inspection procedure matter. “MPI checked” by itself does not describe a complete acceptance requirement.

Read It Alongside Other Records

Dimensional checks, mechanical test information and material certificates answer different questions. Review the required records together so that the inspection package matches the product specification. MetalVanta includes magnetic particle inspection in its batch release process.

Further Reading

TWI — Magnetic Particle Testing

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