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hasrul said in February 12th, 2008 at 12:40 am

can i know what is the different between stainless steel schedule 10,schedule 40 and schedule 80 pipe and its application on where it were applied for

thank you

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Tom Gabriel said in February 12th, 2008 at 1:33 pm

The difference between schedule 10,40 and 80 stainless steel pipe is the wall thickness. Schedule 10 has the thinnest wall and schedule 80 has the thickest wall. The wall thickness varies within each schedule depending on the diameter of the steel pipe. Smaller diameters have a thinner wall. Larger diameters have a thicker wall.
Common types of stainless steel that are used in welded pipe are 304 and 316. 304 stainless steel is the most common in use. It is easily welded by most common methods as well as being corrosion resistant to many chemicals and industrial atmospheres. 316 stainless steel stands up better to corrosion and pitting. It also has a higher strength at elevated temperatures. It is most commonly used in chemical equipment and marine applications.
If you would like actual wall thicknesses, I would need to know the diameter of the pipe.
Thanks for your question. Tom

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Amit said in July 23rd, 2008 at 4:27 am

Threading given is 3 ince NPT with schedule 40 on 316 Stainless Steel. Pls inform the pipe thickness in milimeters.

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jayant said in October 3rd, 2008 at 6:49 am

Above article was helpful. Now, please highlight what is the difference between sheet and plate?
Thanks for answer.

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Pravin said in October 20th, 2009 at 10:21 am

does this means that the O.D of pipe is fix and the sch. changes the I.D. i.e. thickness of pipe

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bala said in February 24th, 2011 at 5:41 am

IN NPS (NOMINAL PIPE SIZE) ID AT MOST EQUAL TO SPECIFY SIZE BUT OD WILL BE CHANGED DEPENDS ON SCH OR CLASS

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Fermin S. Catalan said in May 15th, 2011 at 6:58 pm

what is the difference between sheet and plate?

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Tom Gabriel said in May 16th, 2011 at 12:31 pm

Fermin,
Plate is steel sheets that are 3/16″ or thicker. Sheet is a thinner in width. Thanks for the question!
Tom

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pankaj said in June 15th, 2011 at 12:05 pm

what is difference bet SS 304 , 309 , 316.

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slnswamy said in March 15th, 2012 at 10:38 pm

for air 8 kg/cm sq how do i decide i have to use a tube or a pipe?

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pandharinath said in April 10th, 2012 at 5:13 am

what is the difference between pipe and tube?

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tyler97005 said in November 8th, 2012 at 12:34 am

I’m looking for a pipe or tube that have 1 1/8″ inside diameter, but have no luck. Any idea when can I locate one. Thank you

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Tom Gabriel said in November 12th, 2012 at 1:43 pm

Hay Tyler,
Look at D.O.M. tubing. It is sized on the O.D., but with the correct wall thickness you can get real close to 1 1/8″ I.D. 1 3/8 1/375 O.D., 1/8″ wall.
Thanks for checking out our blog!
Good Luck,
Tom

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Nori VSN Murthy said in February 26th, 2013 at 6:51 am

Dear Sir / Madam,

The fundamental difference between pipe and tube is:

Pipe is for mass transfer applications, whereas, tube is for heat transfer applications.
Due to this fundamental difference, we generally call pipes and tubes as: water pipes, steam pipes, slurry pipes, boiler tubes, heat exchanger tubes, radiator tubes, etc.

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Tom Gabriel said in March 11th, 2013 at 1:49 pm

We were talking about sizing, but that is a great point you make!

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