[MW:3084] Re: API 5L GR.B & ASTM A106 GR.B

I read it wrong.

Yes, All ASTM materials are classed under S-Numbers.

Thanks Sukamal.

arun

On Sat, Aug 29, 2009 at 3:53 AM, Sukamal Naskar <sukamalbecmet@gmail.com> wrote:

Dear Mr. Tong,

 

Just a small correction, According to QW-420.2 ( S-numbers) , in this case both the materials are S No. 1 Gr. No1 .

If the material is SA106 GR.B then it can be considered as P No1 Gr.1 ( QW-422) , but here the material is ASTM A106 GR.B , hence it is S No.1 Gr.1 ( QW-420.2)  as API 5L GR.B material.

As both are same S No. Gr.No ( S1 Gr.1) materials , there will be no problem for the WPS / PQR from the base material point of view.

 

Regards,

 

Sukamal Naskar

Welding Engineer

On Fri, Aug 28, 2009 at 3:26 PM, tong tong <tong2je@gmail.com> wrote:

Dear Sohaib,

Based on ASME IX, API 5L Gr. B assigned as a S-1 while A 106 Gr. B assigned as a P-1. If procedure qualification testing was done using material assigned an S-Number or S-Number Group Number, the range qualified is limited to materials that are assigned
S-Numbers or S-Numbers Group Numbers (i.e., qualification using a P-Number material qualifies corresponding S-Number materials; qualification using an S-Number material qualifies corresponding S-Number materials but not corresponding P-Number materials; qualification of welders using a P-Number material qualifies them to weld on corresponding S-Number materials and vice versa). For more details you can refer to QW-420.

Regards

Tong2je

On Fri, Aug 28, 2009 at 2:07 PM, Sujeet Sangle <sujeetsangle@gmail.com> wrote:

Dear Sohaib,

 

It will depend on the code you are using is yourexisting procedure has the same code as to the new one you intend to use.

 

Does it cover the thickness and Diameter range

 

As per AWS D 1:1 they come is same group

 

As per ASME Sex IX , they have same Group No. 1 .

 

They have the same strenght 60 Ksi - Tensile strenght .

 

You have to see if any additional Test is required i.e Impact or Corrosion test by the client Spec. as to the previous

 

If all are matching need to check the Electrode Batch or need to contuct the batch test .

 

Let me know if any more information is required or it covers your query .

 

Thanks

 

Sujeet

On Fri, Aug 28, 2009 at 12:21 AM, sohaib.t <sohaib_cegco@yahoo.com> wrote:

Gentlemen,

is there any difference between the welding procedures of API 5L GR.B
and ASTM A106 GR.B?

Regards,

Sohaib

--

Sukamal Naskar
Malaysia

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