ASME B36.10M:2015 pdf download

ASME B36.10M:2015 pdf download.Welded and Seamless Wrought Steel Pipe
1 SCOPE
This Standard covers the standardization of dimen- sions of welded and seamless wrought steel pipe for high or low temperatures and pressures. The word pipe is used, as distinguished from tube, to apply to tubular products of dimensions commonly used for pipeline and piping systems. Pipe NPS 12 (DN 300) and smaller have outside diameters numerically larger than their corresponding sizes. In contrast, the outside diameters of tubes are numerically identical to the size number for all sizes. where D p outside diameter to the nearest 0.001 in. (the symbol D is to be used for O.D. only in mathe- matical equations or formulas) t p specified wall thickness, rounded to the near- est 0.001 in. W pe p nominal plain end mass, rounded to the near- est 0.01 lb/ft The nominal plain end mass, in kilograms per meter, is calculated using the following formula: W pe p 0.0246615(D − t)t 2 SIZE The size of all pipe is identified by the nominal pipe size. The manufacture of pipe NPS 1 ⁄ 8 (DN 6) to NPS 12 (DN 300), inclusive, is based on a standardized outside diameter (O.D.). This O.D. was originally selected so that pipe with a standard O.D. and having a wall thick- ness that was typical of the period would have an inside diameter (I.D.) approximately equal to the nominal size. Although there is no such relation between the existing standard thickness — O.D. and nominal size — these nominal sizes and standard O.D.s continue in use as ‘‘standard.’’ The manufacture of pipe NPS 14 (DN 350) and larger proceeds on the basis of an O.D. corresponding to the nominal size.
6 PERMISSIBLE VARIATIONS
Variations in dimensions differ depending upon the method of manufacture employed in making the pipe to the various specifications available. Permissible varia- tions for dimensions are indicated in each specification.
7 PIPE THREADS
Unless otherwise specified, the threads of threaded pipe shall conform to ANSI / ASME B1.20.1, Pipe Threads, General Purpose (Inch). Schedules 5 and 10 wall thicknesses do not permit threading in accordance with ANSI/ASME B1.20.1.
8 WALL THICKNESS DESIGNATIONS
The wall thickness designations Standard, Extra- Strong, and Double Extra-Strong have been com- mercially used designations for many years. As explained in the Foreword, the Schedule Numbers were subsequently added as a convenient designation for use in ordering pipe. Standard and Schedule 40 are identical for up to NPS 10 (DN 250), inclusive. All larger sizes of Standard have 3 ⁄ 8 in. (9.53 mm) wall thicknesses. Extra-Strong and Schedule 80 are identical for up to NPS 8 (DN 200), inclusive. All larger sizes of Extra-Strong have 1 ⁄ 2 in. (12.70 mm) wall thicknesses. Pipe of sizes and wall thicknesses other than those of Standard, Extra-Strong, and Double Extra-Strong, and Schedule Number were adopted from API Specification 5L. It was not considered practical to establish Schedule Numbers or new designations for them.