Difference of 2% of Chromium Content on the Actual PMI VS Sec IIA

[Macario Jr. Palola]

Sirs,

May I ask your valuable inputs with regards to my queries.

Base on the attached report, the actual value of %Cr is 20% as per PMI and the value of %Cr in ASME Sec IIA. Now my question, is this acceptable or not ?

Thank you in advance.

Regards,

Mac

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[Ahmed Fouad]

You can make a weight analysis to insure the real content of Cr.

Knowing that this test is a destructive test.

thank you

‫في الخميس، 16 مايو 2024 في 9:35 ص تمت كتابة ما يلي بواسطة ‪Macario Jr. Palola‬‏ <‪macario...@gmec.ph‬‏>:‬

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Eng. Ahmed Fouad

Production Manager

[Parminder Singh]

10% deviation in parant metal and 12.5% deviation in Weld acceptable in PMI results

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[Mohamed Ali]

Kindly get client specification for the same as they have mentioned the acceptance criteria in the same.

Many clients are acceptable the tolarnce range is +- 10%.

In this case Chromium range between 19.8 to 28.6 is acceptable. 

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[Macario Jr. Palola]

Sirs,

Do we have supporting verses in ASME?

Thanks

[Dinesh Baskaran]

Plz refer attach 

Thank and regards

Dinesh Baskaran

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[pradip kumar Sil]

You can refer PFI  ( Pipe fabrication Institute ) or 10 % bi lateral tolerance of actual alloy content from code for the base metal.

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[Mohammed shaibaaz]

It's is acceptable 

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