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Re: Pipe definitions



Ray Keefer wrote:
>What does "sched 40" and "sched 80" mean

Pressure Ratings of Standard Schedule Pipe:
1/8 to 1" continuous weld or seamless=700 psi
1-1/4" -3" continuous weld or seamless=800 psi
3-1/2" to 4" continuous weld or seamless=1200 psi
2 to 12" electric weld = 1000-1300 psi
1-1/4" to 3" seamless = 1000 psi
3" to 12" seamless = 1000-1300 psi

36 pipe sch. 40 
wall thickness of .75
Inside O.D. of 34.5
lbs per foot of 245

Too big for psub!!!!!!!
You need 1/4" to 3/8" gauge ASTM 516 Grade 70 or better


(This dead horse owns a steel shop and welding shop)
I know my steel, feel free to ask any questions
Charles