ZAF Quantification (Standardless)
Element Normalised

Element	Wt%	At%	K-Ratio	Z	A	F
SiK	1.01	1.99	0.0047	1.1106	0.4240	1.0014
NbL	1.26	0.75	0.0084	0.9060	0.7323	1.0014
CrK	19.69	20.98	0.2173	0.9934	0.9856	1.1274
MnK	0.52	0.52	0.0051	0.9764	0.9930	1.0260
FeK	53.01	52.61	0.5259	0.9957	0.9644	1.0333
NiK	24.52	23.15	0.2273	1.0131	0.9149	1.0000
Total	100.00	100.00

This is the table of analysis for the X-ray spectrum shown in this sub-series. The analysis gives the percentage by weight (wt%) and the percentage by number of atoms (at%) of each of the elements identified.

The letter (K or L) after each element (e.g. CrK) refers to the characteristic X-ray wavelength due to the energy released by an electron moving from one shell to an inner shell of the atom. Each element can give several characteristic peaks, but normally only the strongest is analysed. The other columns in the table give information about the calculations and corrections used by the computer in the analysis. They are used by the scientist to indicate the accuracy of the analysis.

The analysis shows that this sample is a stainless steel, which contains a lot of nickel and chromium. These give it good oxidation and corrosion resistance and good mechanical properties. The niobium and silicon levels are quite high for a stainless steel, which indicates that this is a steel for high temperature applications.

The niobium may be there to form carbides which improve the strength of the alloy at high temperature. The carbon has not been detected in the EDS analysis due to its low atomic weight.