Spectrometer-check sample C Fe 8 for cast iron

Qith R G 13 and R G 14, SUS have succeded in producing homogeneous, satisfactorily reproducible cast iron recalibration samples for spectrometers. These samples contain concentrations for the high points of 14 elements, as required in low alloy cast iron (Information Sheet No. §). The samples have a useful height of 30mm.

To check spectrometers during production, spectrometer-check samples must be used (DIN 51008-1, 1995, page 38) having compositions similar to those of the products.

SUS have succeeded in producing spectrometer-check samples in identical sets of 10 which are 40mm in diameter, with a useful height of 30mm and a total height of about 40mm.

The 10 samples in a series are tested for precision and uniformity ,and documentary proof of quality is given for each set.

NB: Analyses are carried out on spectrometers with spark discharges in argon (SDAR) which are currently calibrated with national and international certified reference samples. The analyses do not need to agree with those obtained on inplant spectrometers used for process control, which are calibrated inter alia with production reference samples. In this case, the spectrometer check samples have to be integrated with the spectrometer calibration (for explanations, see SUS spectrometer check samples).

The approximate composition for the spectrometer check sample for cast iron is:

  C Fe 8
C 3,2
Si 1,3
Mn 0,5
P 0,02
S 0,02
Cr 0,05
Ni 0,03
Mo 0,01
Al 0,04
Cu 0,06
Sn 0,01
Ti 0,01
Pb <0,002
V 0,01

 


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