Pipe specifications
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What are the pipe specifications for spiral-welded submerged-arc welded steel pipes L245 PSL1? Is there a tube in the 377×8 size?
There are seamless steel pipes of 377*8
The dimensional standards for seamless steel pipes and welded steel pipes are two different sets of specifications; just do a search on Baidu
I know that two different standards are being applied, but there are no specifications for the pipe dimensions. Where can I find the specifications for the pipe sizes?
It’s a 377 pipe; it’s a completely normal metric pipe. There are DN350 377 seamless pipes as well as welded pipes, both available.
Since you know the dimensional standards, check the relevant standard documents to see if this specification is available.
If you know the specific standard numbers for those two standards, you’ll likely understand the provisions contained in them.
Dimensions standards for welded steel pipes: GB/T 21835-2008 – Dimensions of welded steel pipes and weight per unit length. Dimensions standards for seamless steel pipes: GB/T 17395-2008 – Dimensions, shape, weight, and allowable tolerances of seamless steel pipes. For certain pipe diameters and types that follow foreign standards, please refer to the corresponding foreign standards
I’ve already sent you the two standard numbers; you can check them to find out the dimensions
The most commonly used standards for the outer diameter and wall thickness of pipes in the petrochemical industry are: SH/T3405-2017 and HG/T20553-2011. The American standards for outer diameter and wall thickness are: ASME B36.10M for carbon steel and alloy steel pipes, and ASME B36.19M for stainless steel pipes. You can find the relevant information by checking these standards.