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Positive Material Identification (PMI)

XRF alloy analysis to verify material composition and traceability for high-integrity piping and pressure systems.

What is PMI?

Positive Material Identification

PMI uses X-Ray Fluorescence (XRF) technology to determine the elemental composition of alloy materials — verifying the correct material has been used in fabrication and installation.

PetroNDT performs portable XRF PMI on piping, flanges, fittings, valves and welding consumables to confirm alloy grades including austenitic stainless steels, duplex, chrome-moly and nickel alloys.

How It Works

Inspection Process

01

Identify Test Points

Mark test locations on piping, fittings and components as per PMI plan.

02

XRF Analysis

Apply portable XRF analyser to surface — provides results in seconds.

03

Compare to Spec

Compare measured element percentages against material specification.

04

Mark Conforming Items

Mark conforming items. Segregate or reject non-conforming material.

05

Report

Issue PMI certificate showing element percentages and alloy grade confirmation.

Applications

Where It Is Used

Our Work

Inspection Gallery

PetroNDT
PetroNDT
PetroNDT

Frequently Asked Questions