Material Identification is a systematic approach to identify particular grade of material for reverse engineering, alteration or repair of the existing assets or products, non-traceable material and use of substitute material.
The initial stage in Material identification involves identifying the source of material ( stray, batch mix-up) product application( tensile, compression, fatigue), form of material ( casting, forgings, rolled, extruded, welded), shape of material ( plate, sheet, pipe, solid, preformed) followed by chemical analysis, surface and core hardness, tensile test, case depth evaluation, microstructure condition.