Re: [MW:23740] Materials Comparison Form

Mr Boxi,

Ok, request NISCO to provide COC (after referring the MR/PR/PO about material spec and grade requirement), sample COC was attached (from other manufacturer) for your information.

Please ensure the below points to be indicated on the COC:

1. Material Specification as per ASME Section II Part A: 2013 shall be ASME SA 537 / SA 537 Class 1

4. Manufacturing Process and material condition

4.1 Steelmaking Practice — The steel shall be killed

and conform to the fine austenitic grain size requirement

of Specification A 20/A 20M.

 5. Heat Treatment

5.1 All plates shall be thermally treated as follows:

5.1.1 Class 1 plates shall be normalized.

5.1.2 Class 2 and Class 3 plates shall be quenched

and tempered. The tempering temperature for Class 2 plates

shall not be less than 1100°F [595°C] and not less than

1150°F [620°C] for Class 3 plates.

6. Chemical Requirements (ask also to indicate Ceq. compliance)

6.1 The steel shall conform to the chemical requirements

shown in Table 1 unless otherwise modified in accordance

with Supplementary Requirement S17, Vacuum

Carbon-Deoxidized Steel, in Specification A 20/A 20M.

Regards
P Govindan
L&T HCI-PQM,
Abu Dhabi.

On Sat, Oct 17, 2015 at 11:34 PM, Pinaki Boxi <boxi.pinaki@gmail.com> wrote:

Dear Mr. Govindan,
Right now MTC is not possible to change, please advice without change the MTC.

On 10/17/15, Perumal Govindan <perumalgovindan@gmail.com> wrote:
> Mr Boxi,
>
> Advise NISCO to replace all the MTCs as per ASME material specifaction.
>
> As a Contractor / Buyer you would have commented on the draft MTC before
> printing as a final copy. You would have atleast specified on PR and PO.
>
> Now only the option to replace the MTC, Client will not accept the
> deviations. Hence, disciss with NISCO for the new MTC as per ASME Section
> II.
>
> Regards
> P Govindan
> L&T HCI-PQM,
> Abu Dhabi.
> On 17 Oct 2015 12:47, "Pinaki Boxi" <boxi.pinaki@gmail.com> wrote:
>
>> Dear Sir/Expert,
>> As per Design requirements Sphere materials shall be ASME SA537 Cl.1
>> 2013Ed. but we received ASTM A537 Cl.1 2013Ed. materials at site.because
>> of
>> that client needs materials comparison Form and it shall be sing by AI
>> (Authorized İnspector )
>> As per AI, requirements Melting Method, Melting practice, Manufacturing's
>> process, De oxidation shall be in the Materials comparison Form.
>> But MTC mention only Fully Killed and Fine Grain Practice steel, Vacuum
>> Degassed.
>> So requested to please be advice how we get all the AI requirements from
>> MTC .
>> Materials Comparison Form & MTC attached for ready reference.
>>
>> --
>> Thanks & Regards
>> Pinaki Boxi.
>> *Manager QA/QC*
>> *ARP Project Site, Turkey*
>> *Mob :- +905351054384.
>>
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--
Thanks & Regards
Pinaki Boxi.
*Manager QA/QC*
*ARP Project Site, Turkey*
*Mob :- +905351054384.

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