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Pmi Alloy Steel Analysis using XRF  

ElvaTech
Pmi steel is one of the most widely used material in large structures. As its name suggests the main alloying constituent is carbon. XRF comes in handy when there’s a need to quickly sort carbon steel from other alloys like in scrap metal industry or during incoming inspection. Alloy steel properties are determined not by carbon. XRF is indispensable for the analysis of this type of steels, because contents of alloyants such as Mn, Ni, Mo, V etc, which determine steel properties
and cost, are measured within seconds.

Detection Ranges in Alloys for ElvaX Low alloy steel,
high alloy steel and heat resistant alloys with Ni and Fe-Ni base:
Elements
Detection range (mass fraction), %
Beginning of range
End of range
Value
Absolute Error
Value
Absolute Error
Al
0.01
0.003
2
0.1
Si
0.01
0.003
5
0.2
P
0.05
0.003
0.1
0.01
S
0.005
0.003
0.1
0.01
Cr
0.05
0.02
30
0.3
Ni
0.05
0.03
30
0.3
Cu
0.01
0.005
30
0.3
Ti
0.02
0.005
4
0.1
Mo
0.005
0.002
15
0.2
V
0.02
0.01
3
0.15
W
0.01
0.02
20
0.2
Co
0.02
0.01
5
0.2
Mn
0.05
0.02
20
0.2
Nb
0.005
0.005
3
0.4
Sn
0.07
0.004
0.1
0.01
Sb
0.007
0.004
0.1
0.01
Sd
0.007
0.004
0.1
0.01
Fe
base
Comparison of measurement by ElvaX and SRM 1155 Stainless Steel (Cr18-Ni12-Mo2) AISI316 (NIST):
Elements
Certified
Measured
Si
0,509
0,497
P
0,02
0,021
S
0,0175
0,016
Cr
18,37
18,32
Mn
1,619
1,59
Co
0,105
0,097
Ni
12,35
12,38
Cu
0,173
0,169
As
0,0107
0,169
Mo
2,386
2,378
W
0,11
0,108
W
0,0
0,02