Positive Material Identification (PMI) Testing

Portable Hardness Testing is a field-based material verification method used to assess the hardness of metals directly on-site without the need for destructive sampling or laboratory analysis. It is widely applied in welded fabrication, structural steel, and in-service components to confirm material condition, heat treatment quality, and mechanical integrity. The test is performed using calibrated portable hardness equipment, allowing accurate measurements on welds, base material, and heat-affected zones.

This enables rapid decision-making during fabrication, inspection, and maintenance activities. Portable hardness testing is particularly valuable for verifying welding quality, detecting potential material inconsistencies, and ensuring compliance with project requirements before final acceptance.