X-ray fluorescence (XRF) spectrometry determines the chemical composition of carbon and low-alloy steels by measuring the characteristic radiation emitted by atoms excited with X-rays. Measurements are made on an instrument calibrated with certified reference materials. It is used to verify alloying elements and check steel grades.
Main Elements Analysed
- Mn, Si, Cr, Ni, Mo, Cu
- V, Nb, Ti, Co, W, P, S
- The element list depends on the material and the relevant standard
Note: carbon cannot be determined by XRF; where a carbon value is needed, spark spectrometry is used.
Applied Standard
- ASTM E1085 – Analysis of low-alloy steels by wavelength dispersive X-ray fluorescence spectrometry
Specimens
The analysis surface must be flat; specimens are cut and the surface is ground in our laboratory. Results are reported in mass percent (%) and, on request, compared with the limits of the material standard or certificate.