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Ganga, I will have to look into that. I suppose I can get one of our onsite reps at the fab shop to measure that bore. You are correct this is station piping.

Temp is -20/120 and design pressure is 3000 psig. My concern is with the weld neck. It is .432"wt and according to the MTR only 42ksi. I would assume the working pressure in B16.5 would apply to the entire flange. So my immediate thought is the flange will be suitable for the requirements. But...

Yes. They are welding neck. My confusion is SP-44 stating for flanges under 12" dimensional and tolerance requirements should follow B 16.5. But, oustide of dimensional and tolerance requirements I am assuming it should follow SP-44. What about Temp/Pressure chart? It wouldn't exist for a 1500...

Thank you. These were my thoughts but I wanted confirmation. But does SP-44 include 1500 series flanges?

We have some small spool pieces that were fabricated offsite. The drawings called for A694 F52 6" 1500 series RTJ flanges. The material that was delivered to the offsite contractor was A105 6" 1500 series RTJ flanges. This is on a compressor station governed by B31-8. I can't find A694 in the...

That was what I needed. Thank you.

I am trying to write a WPS for 5L 16".844 Grade B using E6010/E8010. I am trying to find information on preheat and maximum interpass temperatures. I don't see anything of reference in 1104. What am I missing here?

Thanks a ton guys. This confirmed my thoughts. I thought I was correct on the oxide layer thickening due to prolonged exposure to heat. Does anyone know how long this takes though? If its at 470 for an extra couple of minutes is that enough or does it take longer? I will still go with the...

At the coating facilities I don't have the equipment to perform a hardness test. That's why I'm looking for a somewhat ballpark answer if at all possible. Just to know what i can expect. I'm coating X52 psl2 pipe, but I do not have the MTRs for it.

I should start by saying I am not an engineer. I am an inspector charged with watching steel pipe manufacturing and plant applied FBE applications. But I have a question I can not get answered. No one, from seasoned industry friend's to reference books, have given me a solid answer. When...