Positive material identification for the metal alloy industry - Metal

Positive Material Identification is a well accepted analytical materials testing and materials identification technique used within the metal alloy industry. It guarantees the materials chemical composition as required for quality control.

On-site Positive Material Identification done by using simple, portable analysers have a number of benefits. For example PMI testing allows the manufacturer:

  • to ensure every part conforms to specification,
  • to identify the correct alloy grade where a critical part is to be replaced,
  • facilitate inward goods inspection to ensure all bought in materials are to specification, etc

Applied correctly, simple Positive Material Identification avoids any potential mix up, costly reworks, out of specification material used incorrectly. PMI testing avoids the failure of a critical component potentially leading, in the worst case, to a catastrophic failure of a process and loss of life.

There are two globally accepted analytical methods for simple on-site Positive Material Identification: X-ray Fluorescence (XRF) and Optical Emission Spectroscopy (OES).

Positive Material Identification and XRF

The X-MET7000 Series is a rugged handheld XRF analyser for PMI testing. It measure in a few seconds – by simply point and shoot - the key alloying elements in stainless steel and high alloy grades where PMI is most frequently used.

  • Quality control and assurance of micro alloy steels; aluminium and magnesium alloy analysis
  • Trace & light element analysis (Magnesium to Sulfur)
  • Low Chromium analysis, FAC inspection
  • Wires down to 1mm diameter can be identified
  • No expensive and bulky helium or vacuum attachment needed

Positive Material Identification and OES

The PMI-MASTER Pro, FOUNDRY-MASTER and TEST-MASTER are robust mobile OES systems for Positive Material Identification, measuring the range of alloys shown above, but in addition to measuring elements such as chrome or manganese in steel:

  • Determination of elements such as Carbon, Boron, Sulphur and Phosphorous at ppm level, which are not possible using portable XRF.
  • Simple analysis: hold the pistol against the sample, wait a few seconds and then the full chemical composition and alloy grade is displayed.
  • A burnspot remains on the surface and proofs the testing of the material.

All analysers offer, simple, rapid, rugged, dependable on-site Positive Material Identification.