SA 20 Cl 19 Material test report + VIII Div 1

[bmoorthy]

A) Vessel fabricated under ASME Sec VIII Div 1. Material of construction SA 516 Gr 70. U 1 stamping required.
Location of end Use US of A. Supplier of Steel Plate: From US of A

Plates ordered to meet the basic requirement of SA 515 Gr 70 and also required to meet the associated baisc requirements of SA 20.
No additional or supplementary requirements requested.

A1)Is it necessary for the material test report to indicate the numirical values of Tensile test and Yield test results and the Elongation values?

(No query on other portions of material test report)

A2)It is felt by one group of experts, that it is enough if the manufacturer of the plate certifies that the Tensile, yield and elongations values meets ASME SA 516 and that is not necessary by the ASME Sec VIII Div 1 or by ASME Sec II A that the numerical valus needs to be reported.

If the vessel were ASME Sec VIII Div 2, then as per Clause 3.2.6.2 (Old AM 101) calls for numerical results and hence if it were for ASME Sec VIII Div 2 then only it is required, where as for ASME Sec VIII Div 1 it is not required !!!

It seems the word "Results" in the para 19 of SA 20 indicates whether it is pass or fail and not the values, is the above correct position?

Thanks in advance.

 

[SnTMan]

That's pretty odd. I've never seen an MTR that didn't include values for those properties. I think both the fabricator and owner should be supplied with them as a matter of course.

Regards,

Mike

 

[metengr]

Questions

A1)Is it necessary for the material test report to indicate the numirical values of Tensile test and Yield test results and the Elongation values?

Reply; Yes

A2)It is felt by one group of experts, that it is enough if the manufacturer of the plate certifies that the Tensile, yield and elongations values meets ASME SA 516 and that is not necessary by the ASME Sec VIII Div 1 or by ASME Sec II A that the numerical valus needs to be reported

Reply; Incorrect

 

[gr2vessels]

bmoorty,
It is a disputable topic and challenging also;- the Code requires the materials to comply with the ASME II Table D, not with the material certificate. As such, my understanding is that a confirmation from the plate material manufacturer that the material supplied to the vessel fabricator conforms with the code minimum requirements and that should be enough. The actual tensile and yield figures are higher than the minimum code requirements, but are also irrelevant to the vessel design.
cheers,
gr2vessels

 

[metengr]

READ ASME SA-20. ASME Section VIII Div 1 goes to great pains regarding MTR's versus Section I.

 

[GenB]

It is the case, the MTR shall have all details;
material mfrs are managed by Chem Engineers who think they can invent the rules and challenge the ASME.
The case of Cal-Steel: they do not enter the NDE part of the test in the pipe MTR but they say: it is covered at the end statement:
"The material has been tested to the required specification" All I got in a complain to them was a letter that assures the NDE was and it is prerformed on all ERW pipe,
that was 10 yrs pass and has not changed.

Not acceptable: according to the ASME the NDE has to be specified in the MTR. to affirm it has been performed.

same on plate all the SA20 specs have to be written and certified and not just certified.

You only learn these requirements during a review when the team leader really pushes your knowledge.
genblr