Re: RE: [MW:4103] composition manganese less than requirment of ASTM A36

Hi TRAN VAN VUONG

For C & S, Nitrogen analysis - LECO instrument gives us the perfect results.
Rest elements can be rechecked by Wet Chemical Analysis if there is any dispute in spectrometer(VES)/ PMI analysis.

Wet chemical analysis is done by Titration for other elements and requires chips / drillings of the sample you want to analyse. Generally about 1-2 grams are required for each element to analyse.
You can get the details about the procedure from any Metallurgical / Chemical Laboratory in your vicinity / surrounding area or company..

Regards

Prem Nautiyal
Godrej,Mumbai.

On Wed, 20 Jan 2010 10:33:14 +0530 wrote
>



Dear All and Louis,



Thank you very much.



I would like to study "wet
analysis method". Do somebody know this ?



Please advice.



TRAN VAN VUONG









From:
materials-welding@googlegroups.com
[mailto:materials-welding@googlegroups.com]
On Behalf Of A D
Sent: Wednesday, January 20, 2010
8:14 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:4096] composition
manganese less than requirment of ASTM A36







Hi,


PMI values are not exact
value, so the below value of Mn is not a major problem. If you want confirm
the correct value, select the wet analaysis method.





Louis


Welding Inspector


Singapore

--- On Tue, 19/1/10, babu k
wrote:



From: babu k
Subject: Re: [MW:4092] composition manganese less than requirment of ASTM A36
To: materials-welding@googlegroups.com
Date: Tuesday, 19 January, 2010, 7:44 PM


Hi,





The reduction in Mn may be compensated by
Carbon content,





Also the exact Mn content value u can
cross check with wet analysis.














On Mon, Jan 18, 2010 at 11:52 AM, Tran
Van Vuong wrote:


Dear All,



Please help me in PMI testing for material ASTM
A36 thickness over 20.0mm, the composition requirement of manganese is (0.8 –
1.2)%. But result of test is less than 0.8%. Other testings are accepted
(tensile, bending, elongation).


Please advice me this result is accepted or not.



If not, please advice the solution.

Thank you in advance.

TRAN
VAN VUONG

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Thanks & regards,

K.Babu
Singapore
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PREM S NAUTIYAL
CELL : 9820313278