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Re: [MW:4069] RE:

By Materials & Welding

Hi Pradip,

Thanks for the information.Really informative.

However even Mittal also claim CE-0.43 is very stringent.

I have even enquired with couple of other plate manufacturer but response was negative.
I have highlighted this to our PMC.I will share their response once I get reply from them

Regards
Sachin.Sankhe
On Sun, 17 Jan 2010 18:47:19 +0530 wrote
>



Dear Sachin,



I have attached a brochure from Mittal
Steel, which would be of interest to you. Typically steels undergoing PWHT can
tolerate higher C.E (refer page-3 of this catalogue), based on the industry experience.
C.E could be controlled to get balanced chemistry same time without
sacrificing through thickness properties of steel.



You may find further requirements on C.E
in the latest spec of SA-516 in ASME Sec-II , Part-C.



As mentioned below simulation temperature
@ 6900C looks quite high for C-steel. Usually alloying elements
other than C, Mn are required to provide the basic mechanical properties in the
steel at this temperature. Typically soak temperature of C-Mn steel seldom would
exceed 6400C.



Thanks.







Pradip Goswami,P.Eng

88,Garth Trails Crescent

Hamilton,Ontario, L9B2X1,Canada

Email-pgoswami@sympatico.ca

Email-pgoswami@quickclic.net

Tel-905-679-9677











From: sachin sankhe
[mailto:sachin.sankhe@rediffmail.com]
Sent: None
To:
materials-welding@googlegroups.com
Subject:





Dear Friends
I have got query details are as follows

1.MOC-SA516 Gr.70
2.Application-Reactor Regenertaor Package for FCC unit
3.Thickness Range-50 mm to 100 mm
4.Carbon Equivalent limitation-0.43
5.Simulation Requirment-690 Deg. C with holding time 9 hrs(1 cycle of PWHT+ 1
cycle of Repair at shop + 1 cycle of Repair at site + 1 cycle for future
repair)

With such stringent requirement no plate supplier is able to meet CE-0.43.Plate
manufacturer can supply plate with CE-0.48 under such condition

kINDLY SUGGEST IF ANYONE HAS COME ACROSS SUCH SITUATION AND SUGGEST WHO IS
SUPPLIER OF SUCH PLATE

Regards
Sachin.Sankhe
















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