Pipe Thickness Calculation

If you Google "standard pipe sizes" you will probably get a few hits that give this information.

Pipe Specifications

1. All pipe is to be made of a long hole, surrounded by metal, plastic

concrete, clay or ceramic material around the hole.

2. All pipe is to be hollow throughout the entire length – do not use holes of different length than the pipe.

3. The inside diameter of all pipes must not exceed their outer diameter

otherwise the hole will be on the outside.

4. The pipe is to be supplied with nothing in the hole, so that water,

wastewater, steam or other stuff can be put inside at a later date.

5. All pipe is to be supplied without rust; this can be more readily

applied at the job site.

6. Some vendors are now able to supply pre-rusted pipes. If available in your area and if rust is desired, this product is highly recommended, as it will save a great deal of time at the job site.

7. All pipe over 500 ft (150 m) in length should have the words "LONG PIPE" clearly painted on each side and end, so that the contactor will know it's a long pipe.

8. Pipe over 2 miles (3.2 Km) in length should have the words "VERY LONG PIPE" clearly painted in the middle, so that the contractor will not have to walk the entire length of the pipe to determine whether it is a long or a short pipe.

9. All pipe over 6 ft (1.83 m) in diameter should have the words "LARGE PIPE" clearly painted on it, so that the contractor won't mistake it for a small pipe.

10. Flanges must be used on all pipes. Flanges must have holes for bolts, quite separate from the big hole in the middle.

11. When ordering 90^o or 30^o elbows, be sure to specify left hand or right-hand, otherwise you will end up going the wrong way.

12. Be sure to specify to your vendor whether you want level, uphill or downhill pipe. If you use downhill pipe for going uphill, the water will flow the wrong way.

13. All couplings should have either right-hand or left-hand threads, but do not mix the threads, otherwise as the coupling is being screwed on to one pipe, it is being unscrewed from the other.

14. All pipes shorter than 1/8 inch (3 mm) in length are expensive to use, requiring many joints. They are generally known as washers.

15. Joints in pipes for water must be water tight. The pipes for vacuum or compressed air, however, need only be air tight.

16. Lengths of pipes may be welded or soldered together. This method is not recommended for concrete or earthenware pipes.

17. Other commodities are often confused with pipes. These include conduits, tubes, tunnels, drains, and tobacco pipes. Use only genuine pipes.

The main difference between tube and pipe is that tube shall be perfectly tubular, and pipe shall be perfectly pipular. (ASTM 36.58a, DIN 4463X, JIS 89-Q) Know your local standards!