RE: FW: [MW:13111] Type of steel as per chemical proterties

Dear Sirs,

 

Thanks a lot for your kind advices.

As we do not know original bolt specification, finally we conducted hardness test.

Base on both PMI result and hardness test result, we choose the nearest one.

 

Thanks again and best Rgds,

 

WN

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Fitria Rahman
Sent: Wednesday, November 30, 2011 6:10 AM
To: materials-welding@googlegroups.com
Subject: Re: FW: [MW:13105] Type of steel as per chemical proterties

 

Hi Naing
What I suggest here is get the chemical composition from your bolt specification and compare the PMI result (I did before with Metorex Arc Met-930) against the chemical composition from the specification. Now you can determine is it conform or not. I was always thought that we can not claim the material fall under YYY specification. Only manufacturer has the authority to make a judgment that the material fall under - let's say A105. 

Rgds

2011/11/28 Abdul Hafeez <hafeezrabi@hotmail.com>

Dear,

Use latest equipment optical emission spectrograph, so u can all elements even lighter than sulpher. Match results with ASME II .

-----Original Message-----
From: Abdul Hafeez
Sent:  28/11/2011 10:38:28 am
Subject:  RE: [MW:13077] Type of steel as per chemical proterties

use optical emission spectrgraph for PMI and compare results with ASME sec II Part A or B.

Regards,
Abdul Hafeez

-----Original Message-----
From: c.nopadon@vipco-thai.com
Sent:  27/11/2011 4:38:25 am
Subject:  RE: [MW:13064] Type of steel as per chemical proterties

Normal PMI equipment like XRF spectrometer cannot identify C.  From my
knowledge , it must be portable spectrometer or similar which will be more
expensive than normal PMI.  If PMI is required for stainless of which carbon
content is the issue such as  347H , it is possible that the client will
require PMI result with carbon content.

Regards,

C.Nopadon





From: materials-welding@googlegroups.com
[mailto:materials-welding@googlegroups.com] On Behalf Of pankaj abhang
Sent: Saturday, November 26, 2011 1:04 PM
To: materials-welding@googlegroups.com
Subject: Re: [MW:13061] Type of steel as per chemical proterties



Dear How you identified carbon in PMI?..........


Regards,
pankaj

On Fri, Nov 4, 2011 at 11:50 PM, meisam shokri arfaei
<meisamshokri@gmail.com> wrote:

Dear friend,

This material is something like CK30. But this kind of material is heat
treatable and you have to sure about this. It is recommended to have a
metallographic test on it for undrestanding such a heat treatment.



Regards

On Fri, Nov 4, 2011 at 1:22 PM, U WYNN-NAING <u.wynn-naing@total.com> wrote:

Dear Experts,



We did PMI test on one unknown machine bolt from crane boom rest and result
is as follow:

Can someone tell me how can we trace the steel grade base on this result.

Is there any software available?



Thanks and Rgds,



WN











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M. Shokri Arfaei

International Welding Engineer (IWE)

ASNT NDT Level III

ERI Metallurgy Lab. Manager

Tel: +98-21-66283696

Fax: +98-21-66283693



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