No it is different. In Hot rolling you perform the Rolling at High temperature and let it cool in the same atmosphere.
Whereas in TMCP, you roll at temperature just above AC1 in the Austenitic range and perform Accelerated cooling to maintain the grain structure and also TMCP steels contains additions of Niobium etc.. to pin down grain boundary.
J.Gerald
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Harish Kannepalli
Sent: Tuesday, March 01, 2011 8:20 PM
To: materials-welding@googlegroups.com
Subject: Re: Re: [MW:10077] Re:ROLLING
It is hot rolling or called thermo mechanical Processing TMCP.
2011/3/1 lalit malpure <lalit_malpure1982@rediffmail.com>
but what is the rolling method means hot/cold,
what is the difference???
On Tue, 01 Mar 2011 08:46:21 +0530 wrote
>Nowadays plates come with cross rolling, they are rolled at 90degrees in consequent rolling operations.
2011/2/28 sandy
Hi
The main reason is that the mechanical properties are better in the
rolling direction compare to transverse direction.
But it is not mandatory that you weld in this way.
If you weld the material in the way wht u r asking may be possible
that you will get lesser strength or other required things
as compare to long. side welding.
Regards
Sandeep
On Feb 28, 5:29 am, "Kathalingam Babu"
wrote:
> Hi
>
> It is only optional, not mandatory in many codes.
>
> Due to the fact that, there is variation in mechanical properties in Trans
> direction.
>
> Thanks & Regards,
>
> K. Babu
>
>
>
> ----- Original Message -----
> From: "Pratik Kshirsagar"
> To: "Materials & Welding"
> Sent: Sunday, February 27, 2011 12:08 AM
> Subject: [MW:10030] basic funda
>
> > Dear all,
> > I am having a simple question which seems to be stupid but
> > just it's the basic thing. I want to know why to weld a plate in the
> > direction of rolling? What happens if the welding is carried out in
> > transverse direction that of rolling?
>
> > --
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> > meant for educational purposes only, Users must take their own decisions
> > w.r.t. applicable code/standard/contract documents.- Hide quoted text -
>
> - Show quoted text -
--
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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
--
regards,
Harish.
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>
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>
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