FW: [MW:17257] Re: ASME SA 333 Gr. 6 Chemical composition

Dear Azam,

 

I missed your email in the first place. Strictly as per Clause 5.2 of SA 333-2010 specification addition of these alloying elements are not permitted. However some of the alloying elements may come from the scrap used for steel melting.

 

What's the quantity involved? and what're the design requirements ?

 

A re-check of  chemistry by OES spectroscopy would be advisable. If the results of OES conforms to the  results of manufacture's "MTR",  then material is  to be discarded.

 

If the OES results do not pick up any of the alloying elements as  indicated below, then it would be  projects' discretion (i.e Client. EPC contractor and fabricator joint acceptance).

 

However talk to the mill in parallel and see if replacement is available , without jeopardizing manufacturing schedule.

 

Pradip Goswami,P.Eng.IWE

Welding & Metallurgical Specialist

Ontario, Canada.

Email-pgoswami@sympatico.ca,

pgoswami@quickclic.net

5.2 When  Grades 1, 6, or 10 are ordered under this specification (SA 333), supplying an alloy grade that specifically requires the addition of any element other than those listed for the ordered grade in Table 1 is not permitted. However, the addition of elements required for the deoxidation of the steel is permitted

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From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of george.dilintas@gr.bureauveritas.com
Sent: Saturday, March 30, 2013 9:05 AM
To: materials-welding
Subject: Re: [MW:17256] Re: ASME SA 333 Gr. 6 Chemical composition

Sorry
But which of the additional elements is used for deoxidazation?
Usually for deoxidazation Al or Ca is used
Best regards
Dr Georgios Dilintas
Authorized Nuclear Inspector
Authorized Inspector Supervisor
HBS Regional Technical Manager

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  From: sajeed zaheer [sajeed7674@gmail.com]
  Sent: 03/30/2013 11:08 AM ZE4
  To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com>
  Subject: Re: [MW:17254] Re: ASME SA 333 Gr. 6 Chemical composition

Dear Azam,

as per sec 8 div 1 partA  pg.550 para 5 chemical composition,

THE ADDITION OF ELEMENT REQUIRED FOR THE DEOXIDATION OF THE STEEL IS PERMITTED. AND YOU CAN ACCEPT THE ABOVE MENTION MTC AS PER THIS PARAGRAPH. 

On Wed, Mar 27, 2013 at 1:53 PM, Azam Mohd <azam1976@gmail.com> wrote:

Dear All Experts,

Please provide your feedback for below query with some technical justification or code reference.

 

Thanks & Regards,

Mohd. Azam

On Tue, Mar 19, 2013 at 5:09 PM, Azam Mohd <azam1976@gmail.com> wrote:

Dear Experts,

ASME Section II Part A Edition 2010

ASME SA 333/SA 333M

 

The Pipe material is ASME SA 333 Gr.6, as per clause 5.2 and Table-1 the allowable chemical element is C, Mn, P, S, Si only

As per material MTC chemical element is C (0.17%), Mn (093%), P (0.010), S (0.0010), Si (0.24), Cu(0.050%), Cr (0.12%), Ni (0.060%), Mo(0.020%), V(less than 0.004%).

 

Our query is weather above chemical element (MTC) can be accepted for ASME SA333 Gr.6.

 

Looking forward to see the comment from Mr.Pradip Goswami on above matter.

 

Thanks & Regards,

Mohd. Azam

Doha-Qatar

On Wed, Mar 13, 2013 at 3:35 PM, Azam Mohd <azam1976@gmail.com> wrote:

Dear Experts,

The below material chemical composition for ASME SA 333 Gr. 6 as per MTC

 

 

But as per ASME SA 333 Gr.6, Allowable chemical element C, Mn, P, S, Si only. Please refer ASME Section II Part A Edition 2010 clause 5.2.

 

Need your comment weather this chemical composition can be accepted. Please provide the technical clarification or code reference.

 

Thanks & Regards,

Mohd. Azam

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