There are various method by which labs can check chemistry of the same, e.g. Optical Emission Spectroscopy (OES), ICP-OES and combustion analysis etc.
The laborartory is supposed to carry out this chemical analysis as a destructive test, so be clear on that before sending specimen to the lab.
Regards
Muhammad Bilal
On Mon, Aug 16, 2010 at 5:23 PM, John Henning <jhenning@deltak.com> wrote:
Typical x-ray fluorescence (XRF) instruments (Texas Nuclear, Niton etc.)
are not able to determine low atomic weight elements such as aluminum,
silicon, and carbon. There are some field portable spark test
instruments (atomic emission spectroscopy - AES) that can. Otherwise
you will have to send a test sample to have a laboratory analysis
performed - typically AES.
-----Original Message-----
From: materials-welding@googlegroups.com
[mailto:materials-welding@googlegroups.com] On Behalf Of aslam khan
Sent: Friday, August 13, 2010 11:45 AM
To: materials-welding@googlegroups.com
Subject: [MW:6484] how can we differenciate between cs and kcs?
dear friends ,
i want to ask a quaestion , how can we differenciate between cs and
kcs?if we do pmi ,then results are same ?is there any method by which
we can do differenciate between them?
thanks
regards
m.aslam khan
qa/qc engineer
descon engineering ltd.
engro site
cell#+923214217438
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1 comment:
Actually, handheld XRF instruments (such as Thermo Scientific Niton Analyzers) do directly detect light elements down to Mg on the periodic table. You need an instrument with a silicon drift detector, or SDD. These analyzers can differentiate Al and Si killed steels from typical CS through direct detection of Al and Si. For example, a common use of Niton analyzers in petrochemical PMI is differentiation of A-106 (Si-killed) from A-53 based on Si content alone.
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