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Welding high pressure hydraulic tubing

Welding high pressure hydraulic tubing

Welding high pressure hydraulic tubing

I'm having trouble finding out what code (ASME, AWS, SAE) applies to welding high pressure (6,000 psi) hydraulic tube assemblies.  SAE J518 and ISO 6162 cover the flanges, but I haven't seen anything regarding weld requirements.  

Can someone point me in the right direction?

RE: Welding high pressure hydraulic tubing

Out of curiosity do you have any info or standards that pertain to 3,000 psi? I am starting to working on a spec for a hydraulic distribution system for my new structures lab. The architect says "no problem, we have done this before." But I want to cover my behind. Thanks, ISZ

RE: Welding high pressure hydraulic tubing

You might find the standards at the National Fluid Power Association web site or at least a way to order them.


Bud Trinkel, Fluid Power Consultant

RE: Welding high pressure hydraulic tubing

Try ASME B31.3 as a guide.

RE: Welding high pressure hydraulic tubing

Here is a supplier of pipe cleaned specifically for hydraulic oil service that references ASME B31.1 for pressures. They have some conditions for welding but not to any specific code or standard. A call might be beneficial.


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