EN 13480 with ASME SA 312 TP 316/316L
EN 13480 with ASME SA 312 TP 316/316L
(OP)
We have a project where the preferred piping design code is EN 13480 which requires the use of "harmonized" steel.
However, our client has accepted the use of ASME SA 312 TP 316/316L from Particular Material Appraisals (PMA).
So my question is: can we still design and inspect to EN 13480 and use the 316/316L approved via PMA ?
However, our client has accepted the use of ASME SA 312 TP 316/316L from Particular Material Appraisals (PMA).
So my question is: can we still design and inspect to EN 13480 and use the 316/316L approved via PMA ?





RE: EN 13480 with ASME SA 312 TP 316/316L
You could use B31.3's stress allowables, but their basis is different from EN 13480. The PMA is a good approach, but only provides acceptance under PED. So how are you making sure you follow and conform to EN 13480?
What you could do is trying to source triple/quadruple certified pipe to A312 316/316L AND EN 10216-5 1.4401/1.4404. You can use stress allowables from EN 10216-5 and therefore (easily) meet the EN 13480 requirements.Most pipe in Europe is available under this quadruple spec.
Sourcing strictly EN 10216-5 1.4404/1.4401 would not be a problem too. Why would you use A312 316/316L anyways?
RE: EN 13480 with ASME SA 312 TP 316/316L
Yes, I noticed EN 13480-2:2012, Section 4.3.3 allows using other materials if approved with PMA.
Our pipe stress package CAEPIPE will run under EN 13480 analysis with either 316/316L or 1.4401/1.4404 allowable stresses - so I was considering filing both these runs for completeness.
I was told the dual EN / ASME rated steel is difficult to purchase but I have no direct evidence to support this.
RE: EN 13480 with ASME SA 312 TP 316/316L
Furthermore, Ive found EN 13480 to be very difficult when it comes to sourcing fittings/components for moderate/above-average pressure piping (say anything beyond PN 16). The standard sizes like 2 mm are okay, but above that, having to find e.g. a type B fitting with 3.6 mm wall thickness in plain 316 (1.4404/1.4401) - man, what a nightmare.
Another thing to it is that you need to comply with your contract/spec. Not knowing what it is, Im assmuning EN 13480 compliance is required. Check the requirements for determination on stress allowables. Im pretty sure theyre different between the two codes. However, if satisfying PED is just the requirement, and you may apply any code, or even mix up codes (not a good idea though), i think you're okay.
Good luck.
RE: EN 13480 with ASME SA 312 TP 316/316L
If you are using a PMA make sure that the manufacturer (in terms of the PED, not nescessarily the company that actually "builds" the system) accepts this PMA. You might be able to use ASME II part D table Y-1 values, but that has to be cleared with the client, the manufacturer and the NoBo. You can also require to order the material manufacturer to declare that the material does meet the values as mentioned in this ASME II part D table Y-1.
Be sure that in the PMA you check the requirements of the PED and EN 13480-2.
You can buy from companies like Butting.com , buhlmann-group.com and ernefittings.com for instance.
RE: EN 13480 with ASME SA 312 TP 316/316L
RE: EN 13480 with ASME SA 312 TP 316/316L
RE: EN 13480 with ASME SA 312 TP 316/316L
RE: EN 13480 with ASME SA 312 TP 316/316L