PN and SCH walls

[SpudFarm]

i live in norway and we got PN ratings.
the thing i have a problem with is that when people are making things out of steel like a hybrid.

to bring it up a understandable way:
if i make a thread that is about what the minimum for a steel hybrid is, everyone says i am fine with a SCH 40 pipe but that is the same as asking a dog for the answer for me.

what i want to know if the wall thickness of steel pipes. from 0" SCH0 to 8" SCH160. that means that if you got a steel pipe that you know the diameter and SCH rating of you can post like this " 3" SCH 40 has a wall thickness of ....."
if every member that has a steel pipe lying around gives me that information i can write it down and use it later. i think i can get pretty many diameters and SCH ratings from everyone


THANKS

[Hubb]

This link has some good info.

[POLAND_SPUD]

hmmm PN is a pressure number.. I don't think it is the same thing as for example SCH40 becase PN is only a pressure rating while SCH refers to size (wall thickness) of pipes

do I get it right?

[MrCrowley]

Yeah POLAND is right, but the higher the PN the larger the thickness.
I'd say PN15 is a minimum for a hybrid, but i'd try and get PN18 or PN21 if you can.

At 10X you'd want atleast PN18. PN12 and PN15 would be fine for 6x and under.

[DYI]

At 10X you'd want atleast PN18. PN12 and PN15 would be fine for 6x and under.

PN18 = 18 bar pressure rating, ~54 bar burst pressure
PN21 = 21 bar pressure rating, ~ 63 bar burst pressure
Adiabatic 10x propane air = ~90 bar

You may run into a small problem involving copious amounts of concussion and shrapnel if you follow that advice...

And spudfarm, I'll send you a link on MSN that shows the wall thicknesses of pipes from 1/8" SCH 10 to 24" XXS, and up to 48" SCH 80, all on one convenient chart.

[MrCrowley]

At 10X you'd want atleast PN18. PN12 and PN15 would be fine for 6x and under.

PN18 = 18 bar pressure rating, ~54 bar burst pressure
PN21 = 21 bar pressure rating, ~ 63 bar burst pressure
Adiabatic 10x propane air = ~90 bar

You may run into a small problem involving copious amounts of concussion and shrapnel if you follow that advice...

Just occurred to me I don't know the metal rating in metric, I instinctively wrote those as PVC ratings.

I'm not even sure if I've seen metal pipe rated in the PN system...

[POLAND_SPUD]

valves and fittings have PN ratings... steel pipes usually don't have it written on them or you have to find it on manufacturer's site

[SpudFarm]

don't think of the PN. just give me some walls at SCH ratings and i can messure on my pipes as a comparison.