Document 2R23rZNkm9gYbnDbyoE8XQD6N

606 CHAPTER 27 1954 Guide Table 1. Pensions and Properties of SteelJPife Weight* (nf ATM Workihq tPires sure4 psia 0.244 0.314 0.00541 0.424 0.00372! 0.535 0.167 0.00992 0.567 0.217 I 0-00730] 0.738 0.250 I 0 0158 0.850 0.320 0.0122 1.09 0.504 I 0.00259 1.71 333 0 0277 .434 0 0225 .718 0 00768 .494 0 0449 .639 C .0374 .08 0 .0146 >.669 0 .0777 ).881 0.0666 1.53 .0328 0.800 1.07 1.89 ). 1058 1.0918 0.0494 1.68 2.17 3.66 2.27 3.00 5.21 2.72 3.65 6-41 1.07 1.48 2.66 1.70 2.25 4.03 0.174 ).153 0.0922 0.249 0.220 0.128 5-79 7.66 13.7 2.23 3.02 5.47 2.68 3.68 6.72 0.384 0.343 0.216 0.514 0.462 0.304 9.11 12.5 22.9 3.17 4.41 8.10 0.661 0-597 0.405 4.30 , 1.04 6.11 0.945 11.3 0.673 14.6 20.8 38.6 5.58 8.40 15.6 1.50 18.0 1.35 j 28.6 0.978 53.1 7.26 8.40 12.8 21.3 9.18 10.1 11.9 16.1 2.66 2.60 2.37 .1.93 4.24 4.19 4.10 3.88 31.2 34.2 40.5 54.7 12.9 14.6 19.2 5.96 5.88 5.63 16.0 21.2 7.17 6.70 18.4 24.3 20.7 27.4 9.48 9.18 12.1 11.8 70.6 93.5 351 (b) 431 (b) , 753 (b) | 1460 (b) 285 (b) 324 (b) 405 (b) 600 (b) 458 W 653 (c) 355 (o) 506 (6) Pipe, Fittings, Welding 607 (Concluded)Table 1. Dimensions and Properties of Steel Pipe W a l l T h ic k I ness n . Nom inal1 Size ASTM* Sche dule Diameter O. D. I. D. In. In. Surface Area Sq Ft/Lin Ft Section Area Sq In. O. D. I. D. O. D. I. D. Area of Metal Sq In Vol ume Gal/ Lin Ft Weight* (plain end) Lbs/Lin Ft Working Pres sure*' ' PSIA 20 20 (s) 20.000 19.250 0.375 5.23 4.51 314. . 291. 23.2 15.2 78.6 : 319 (c) 30 (s) 20.000 19.000 0.500 5.23 4.97 314. 284. 30.6 14.7 104.2 454 (c) e:o8 '24 20 24.000 23.250 0.375 6.29 452. 4261 26.8:' ; 22.1 94:6 (s) 24.000 23.000 0.500 6.29 , 6.03 452. 415. 36.9.. . 21.5 125.5 265 (c) 378 (c) * 3H Double extra strong is no longer considered in ASTM specification but some pipe of this size is still manufactured. > 1 The sizes for wrought iron are approximately the same except wall thickness is'slightly heavier. See ASTM A-72. * American Society for Testing Materials Schedule. The numbers 30,40, etc., refer to the ASTM Schedule; the letter (s) refers to the former designation Standard Weighi; the letter (x) refers to the former designation Extra Strong; the letters XX refer to the former designation Double Extra Strong.. * Weight per foot is based on plain end pipe. Threaded and coupled (T and C) pipe is slightly heavier. 4 Working pressure for welded joints--see formula in Table 3. (a) Working pressure based on an allowable fiber stress of 6225 psi (for 250 F). (b). Working pressure' based on an allowable fiber stress of 8400 psi (for 250 F). (c) Working pressure based on an allowable fiber stress of 12000 psi (for 250 F). . Note: Standard-weight pipe is generally furnished with threaded ends in random lengths of 16 to 22 ft., although when ordered with plain ends, 5 percent may be in lengths of 12 to 16 ft. Five percent of the total number of lengths ordered may be jointers which are two pieces coupled together. Extra-strong pipe is generally furnished with plain ends in random lengths of 12 to 22 ft., although 5 percent may be in lengths of 6 to 12 ft. metal pipe made of a good grade of cast-iron with or without additions of nickel, chromium, or other alloy. This pipe is available in sizes from V/i in. to 6 in., and in standard lengths of 5 or 6 ft, with external and internal diameters closely approximating those of extra strong wrought pipe. Castferrous pipe may be obtained coupled, beveled for welding, or with ends plain or grooved for the several types of couplings. It is easily cut and threaded as well as welded. The fact that it is readily welded enables the manufacturers to supply the pipe in any lengths practicable for handling. Alloy Metal Pipe. Both iron and steel pipe are available in the alloy classIn the case of iron pipe when copper and molybdenum are added, the ma terial is known as alloy wrought-iron. By common custom steel is considered to be an alloy when the maximum range of alloying elements exceed certain limits such as 1.65 percent man ganese, 0.60 silicon, or 0.60 copper. Also, a steel is an alloy if any of the following elements are specified in minimal quantities or within limits: Al, B, Cr (up to 3.99), Co, Cb, Mo, Ni, Ti, W, V, Zr, or any other element added to obtain a certain alloying effect. Small quantities of certain elements are present in alloy steels and are considered as incidental and may be present to the following maximum amounts: copper--0.35 percent, nickel--0.25 Percent, chromium--0.20 percent, and molybdenum---0.06 percent. Commercially, steel is considered stainless when chromium exceeds 3.99 percent regardless of the inclusion of other alloying elements. With lubln9, however, an alloy becomes stainless when it contains a minimum of 10.5 percent chromium. The alloy and stainless steels are used for high temperature piping and for highly corrosive fluids and gases. Copper Pipe and Fillings. Owing to inherent resistance to corrosion,