SA420 Gr. WPL6/SA234 Gr. WPB

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Sulfi Afdhal

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Jul 5, 2019, 10:06:45 AM7/5/19
to Materials & Welding
Dear

I have a question about my Inspection Certificate of pipe fitting.
We order of material for low temperature ASTM A420 Gr. WPL6.
But, in hard stamp and certificate is "WPL6/WPB" (Attached)
Where i know, for WPB is ASTM A234.
what is the product can used for Low Temperature Service -45degree Celcius???
and if true, any one know reference from standard ASTM???
MTC of Benkan WPL6 WPB.PDF

anand gupta

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Jul 6, 2019, 10:47:43 AM7/6/19
to material...@googlegroups.com, Sulfi Afdhal
WPB is for high temp and WPL6  is for low temp. 
You can not use. 

Regards 

A p gupta 
ThyssenKrupp 
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anand gupta

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Jul 6, 2019, 10:47:43 AM7/6/19
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I think it was punch by mistake. 
No body manufacturer one product with dual spec. 

Regards 
A p gupta 
ThyssenKrupp 
On Sat, 6 Jul 2019 at 9:20, U2L Poenya

Thank’s for your advice sir..

But, why the manufacture make the product with double spec in same of part

 

Thanks

 

 

SuLfi

 

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Dinesh Somwanshi

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Jul 7, 2019, 11:16:54 PM7/7/19
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Dear dual product may possible if follow & meeting criteria. 

Please review MTC. 

Regards

Dinesh

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DINESH VITTHAL SOMWANSHI

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Dindo

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Jul 9, 2019, 12:54:43 AM7/9/19
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The fittings are dual certified, you can use them for both classification.



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