TABLE OF CONTENTS The following formulas are used in the computation of the values shown in the table:
| [ ] weight of pipe per foot (pounds) | = 10.6802 t( D - t) |
| weight of water per foot (pounds) | = 0.3405 d 2 |
| square feet outside surface per foot | = 0.2618 D |
| square feet inside surface per foot | = 0.2618 d |
| inside area (square inches) | = 0.785 d 2 |
| area of metal (square inches) | = 0.785( D) 2 - d 2) |
| moment of inertia (inches 4) | = 0.0491( D 4 - d 4) |
| = A mR g 2 | |
| section modulus (inches 3) | = |
| radius of gyration (inches) | = |
| [ ]The ferritic steels may be about 5% less, and the austenitic stainless steels about 2 % greater than the values shown in this table which are based on weights for carbon steel. |
| A m | = area of metal (square inches) |
| d | = inside diameter (inches) |
| D | = outside diameter (inches) |
| R g | = radius of gyration (inches) |
| t | = pipe wall thickness (inches) |
* schedule numbers
Standard weight pipe and schedule 40 are the same in all sizes through 10-inch; from 12-inch through 24-inch, standard weight pipe has a wall thickness of 3/8-inch.
Extra strong weight pipe and schedule 80 are the same in all sizes through 8-inch; from 8-inch through 24-inch, extra strong weight pipe has a wall thickness of 1/2-inch.
Double extra strong weight pipe has no...
