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ASME B36.10M-2022 pdf download

ASME B36.10M-2022 pdf download.Welded and Seamless Wrought Steel Pipe .
1 SCOPE This Standardcovers thestandardizationofdimensions ofwelded and seamless wroughtsteel pipe forhigh orlow temperatures and pressures. The word“pipe” is used, as distinguishedfrom “tube”, to apply to tubular products of dimensions commonly used for pipeline and piping systems. 2 ð22Þ SIZE The size of all pipe in Table 2-1 is identified by the dimensionless designator nominal pipe size (NPS) [diamètre nominal (DN)]. 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. The manufacture ofpipe 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 thatpipe with a standard O.D. and having a wall thickness 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 ofpipe NPS 14 (DN 350) and larger is based on the O.D. being the same as the nominal pipe size. 3 ð22Þ REFERENCES The following publications are referenced in this Stan- dard. Unless otherwise specified, the latest edition applies: API 5L, Specification for Line Pipe Publisher: American Petroleum Institute (API), 200 Massachusetts Avenue NW, Suite 1100, Washington, DC 20001-5571 (www.api.org) ASME B1.20.1, Pipe Threads, General Purpose (Inch) Publisher: The American Society ofMechanical Engineers (ASME), Two Park Avenue, New York, NY 10016-5990 (www.asme.org)
4 MATERIALS The dimensional standards for pipe described in this Standard are forproducts covered in ASTM specifications. 5 WALL THICKNESS The nominal wall thicknesses are given in Table 2-1. 6 ð22Þ WEIGHTS/MASSES The nominal weights (masses) of steel pipe are calcu- lated values and are given in Table 2-1. The nominal plain end weight, in pounds per foot, is calculated using the following equation: = W D t t 10.69( ) pe where D = outsidediametertothenearest0.001 in. forNPS 8 and smaller, to the nearest 0.01 in. for NPS 10 to NPS 30,inclusive, andto thenearest0.1 in. for NPS 32 andlarger(the symbolDis to beusedfor O.D. only in mathematical equations or formulas) t = specified wall thickness, rounded to the nearest 0.001 in. W pe = nominal plain end weight, rounded to the nearest 0.01 lb/ft
7 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. 8 PIPE THREADS Unlessotherwisespecified,thethreadsofthreadedpipe shall conform to ASME B1.20.1. Schedules 5 and 10 wall thicknesses do not permit threading in accordance with ASME B1.20.1. 9 WALL-THICKNESS DESIGNATIONS The wall-thickness designations standard (STD), extra- strong (XS), and double extra-strong (XXS) have been commercially 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 up to NPS 10 (DN 250), inclusive. All larger sizes of STD have 3 ∕ 8 in. (9.53 mm) wall thicknesses. XS and Sched- ule 80 are identical up to NPS 8 (DN 200), inclusive. All larger sizes ofXS have 1 ∕ 2 in. (12.70 mm) wall thicknesses. Pipe of sizes and wall thicknesses other than those of STD, XS, and XXS, and Schedule number were adopted from API 5L. It was not considered practical to establish Schedule numbers or new designations for them. 10 ð22Þ WALL-THICKNESS SELECTION When the selection ofwall thickness depends primarily upon capacityto resistinternal pressure undergiven con- ditions, the designershall compute the value ofwall thick- ness suitable forconditions forwhich the pipe is required, as prescribed in detail in the ASME Boiler and Pressure Vessel Code, ASME B31 Code for Pressure Piping, or other similar codes, whichever governs the construction. A thickness may be selected from Table 2-1 that is suitable for the conditions for which the pipe is required.

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