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Hi All, Wondering if any can help me understand the following (I may be over complicating it) UHA51(g) exempts impact testing unless modified in (c) when the stress ratio is less than 0.35. In my case, sub-cooled liquid nitrogen vessel operating at -200°C constructed of 304/304l stainless...

pradipgoswami - I looked at the metrode data sheet previously, but unfortunately the it is certified to AWS5.22 EC16-8-2.

Hi All, Wondering if any can shed some light on a query with regard to nozzle (self reinforced) for ASME cold stretching. Man App 44 is clear on using the allowable stresses given in Table 44 for use in calculating head and wall thickness. However, when calculating the reinforcements I am...

Hi All, Wondering if any one can help with the following. I have been looking through ASME II C AWS5.22 to source a suitable wire for welding a austenitic stainless vessel. I have been looking at the EC16-8-2 FCW wire, which would be suitable amongst other wires such as 308l etc. But for the...

Hi, Wondering if any one can help on the following matter. We’ve been asked to construct a vessel with a MDMT of -196 deg c constructed from SA240. Welding consumables are AWS 5.9 and AWS 5.22 308l. After reading through UHA51 numerous times I have come to the conclusion that we are required...

Hi All, Looking for some advice regarding the PED ESR and it's 0.7 joint coefficient. We are designing a new pressure vessel for mass production using a harmonized standard which allows 0.85 and 1 for the joint coefficient. However, we wish to use 0.7 for the calculating and NDT examination...

Hi, Was wondering if anyone could offer any guidance on the exact differences on EC Design Examination and EC Type Approval. My understand that is; EC Design Examination in conjunction with Module H1 - A Notified Body exams the design application and if satisfied issues an EC Design...

ASTM A240 2014 is printed on the plate by the mill. But the MTR states ASME SA240 2013 in addition to this.

Hi All, Wondering if any one can help. We are currently manufacturing to the 2013 Edition of ASME VII Div 1. We have had plate delivered for job which is marked up as ASTM 2014. Under ASME Sec II Pt A this is not an acceptable edition and is deemed not meet the requirements of the...

Hello, I was wondering if any would be able to assist with the following. The organisation I work for has been asked to design a pressure vessel suitable for carrying various acid in accordance with ASME VIII Div 1. The pressure vessel it self does not pose an issue, but unfortunately...