Document 8G4w6jb4v78nvnG84Z235vBe

562 CHAPTER 27 1949 Guide 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 1J 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. Steel pipe bearing a small alloy, of copper or other alloying element and iron pipe bearing a small amount of copper and molyb- Table 1: Dimensions op Schedules 30 and 40 and Standaed Weight Pipe* Plain Ends External Internal External Surface DUftflETSB: In. Wbiohi ' pbs Ft; Lb ;CracuiiFEBENCE, ' In. TaiKSTBSSE Abba, Sq In. SZXB I' d A if. E 3 |. it: f i I5' Ja . H, 1 If 1 .! ,. S Length op Pips, Ft pba Sq Ft 1 1A. a Lsnotb op Pips, Ft Con taining ICuFt Weight of Wateb, Lb peb Ft ' u'4 0.405 0340 .0.269 0 364 0.068 0.09) ' % : 0.675 0.493 0.091 0.840 0.622 0.109 0.244 0345 27 0.424 . 0.425 18 0.567 0368 18 0350 0352 14 1.272 1.696 2.121 2.639 0.845 1.144 1.549 i.954 0.129 0.229 0.358 0354 0.057 0.104 0.191 0304 0.072 0.125 0-167 0350 9.431 14.199 2533.775 7.073 10.493 1383.789 5.658 7.748 754360 4347 6.141 473.906 0.025 0.045 0.083 0.132 H 1 <IH 1.050 0.824 0.113 1.315 1.049 0,133 1.660 ` 1.380 0.140 1.900 1.610 ai45 1.130 1.678 2372 2.717 1.134 14 . 1.684 11H 2381 11H 2.731 i.m 3.299 2389^ ' 0.866 4.131 3.296 1358 5215 4.335 2.164 5.969 ' 5.058 2335 0333 0333 0364 0.494 1.495 - 0.669 2.036 ` 0.799 3.637 2.904 2301 2.010 4.635 3.641 2.768 2372 270.034 0331 166.618 0375 96375 0.65 .70.733 .038 2 2.375 2.067 0.154 2M 2.875 2.469 otai 3 :330G 3.068 0 216 3M 4.000 3.548 0226 3^652 3.678 liH 7.461 6.494 , 4.430 5.793 5j819 8 9.032 7.757 6.492 7.575 7.616 8 - 10.996 -9.638 9.621 9.109 9302 8 12-566 11.146 12366 3355 4.788 7393 9386 1.075 1.704 2328 2.680 1.608 1328 1.091 0.954 1347 1347 1345 1.076 ' 42.913 30.077 19.479 14365 1.45 2.07 3.20 439 4 .4.500 4.026 0237 10.790 10389 8 5 5.563 5.047 0 258 14.617 14.810 8 6 6.625 6.065 0.280 18.974 19.185 8 14.137 12.648 15.904 12.730 17.477 15.856 24.306 20.006 20.813 19.054 34.472 28.891 3.174 0.848 0.948 4300 0.686 0.756 5.581 0376 0.629 11312 530 ' 7.198 8.67 4.984 1231. 8C 8.625 . 8.071 0,277 24.696 25.000 8 . 27 096 25.356 58.426 51.161 . 7.265 0.443 0.473 2815 22.18 8 8.625 7.981 0322 28354 28.9)9 8 ' 27.096 25.073 58.426 `50327 8399 0.443 0.478 ' 2378 21.70 10C 10.750 10.136 0307 34.240 35.000 8 33.772 31.S43 90.763 80.691 10.072 0.355 0376 10 10.750 10.020 CL36S 40.483 41.132 8 ` 33.772 31.479 90.763 78355 11.908 0355 0381 12C 12.750 12.090 0330 43.773 45.000 8^ 40.055 37.982 127.676 114300 . 12876 0399 0315 12- 12:750 -12.000 0575 .49.562 50.706 8^ 40.055 37.699 127.676 113.097 14379 0399 0318 1.785 34.95 1326 3430' 1354 49.70 1373 49.00 * Standard-weight wrought-iron pipe has approximately the same wall thicknesses and weights as con tained herein for steel pipe. For exact dimensions, see American Standard for Wrought-iron and Wrought- Sled Pipe. A.8.A.- B36.10. .A Thicknesses shown in bold face type are identical with thicknesses for Schedule40 pipe of A.S.A.B36.10. ?(Same as Schedule 30, A.S.A. B36.10. denuin have been claimed to possess more resistance to corrosion than plain steel pipe and they are advertised and sold under various trade names. 'Copper Pipe and Fittings. 'Owing to inherent resistance to corrosion, copper and brass pipe have always been' used in heating, ventilating, and Water supply installations, but the cost with standard dimensions for threaded 'connections has been high. The recent introduction of fittings which permit erection by soldering or Sweating allows the use of pipe with thinner walls than are possible with threaded connections, thereby reducing the ;cost of installations. *' - The initial cost of brass and copper pipe installations generally runs higher than the corresponding job-with steel-pipe and screwed connections in spite of the use of thin wall pipe, but the corrosive nature of the fluid Pipe, Fittings, Welding 563' conveyed or the inaccessibility of some of the piping may warrant use of a more expensive material than- plain steel.- The advantages of corrosionresisting pipe and fittings should be Weighed against the correspondingly higher initial cost. COMMERCIAL PIPEf DIMENSIONS The two weights of steel and wrought-iron pipe commonly used are known as standard weight and extra strong, which correspond to Schedules 40 and1 80, respectively, of the American' Standard for Wrought-iron and WroughtSteel Pipe, A.S.A. B36.10. The same external-diameter is used for both Table 2. Standard Weights and Dimensions or Welded and Seamless Steel Pipe* Standab>Weight Pipe Sl&B Outside No. or Diane- Threads teb. In. pee In. Schedule 30 Wan Thick ness,' In. Weight T4C Schedule 40 WaO Weight HrThick- Dess, In. TAC .. Extra-Strong Pith DocblbExtba-" . StBONQ PiPBb Schedule 60 w&n ThickDess, In. Weight per Ft, Lb: Plain Ends Schedule 80 WaU Thick- . In.- Weight Hr Plain 'F-nHo Wan Thick ness In. Weight &' Plain V* 0.405 27 1 Ki 0340. .18 M. 0.675 18 H 0340 14 H 1.050 1 1315 1W 1.660 m 1.900 m2 2375 2375 3 3300 3H 4.000 4 4300 14 11H HH ll M litt 8 8 8 8 5 5363 6 6.625 8 8.625 10# 10.750 12d 12.750 8 8 8 8 8 ... -- -- 0.277 0307 0330 iiimi --- -- 2530 35.00 45.00 0.068 0.088 0.091 0.109 035 0.43 037 . 035 --^ -- 41395 0.119 0.126 0.147 0.113 0.133 0.140 0.145 0.154 0.203 0.216 0326 0337 1.13 .1.68- . 238 2.73 3.68 532 7.62 . 930 ..1039 -- 0.154 . 0.179 0.191 . . 0.200 , ___ 0.218 , 0.276 ___ 0300 0318 ------ % . 0337 0.258 0380 0322 0365 0375 1431 19.19 2831 41.13 50.71 .... 0300 03006 ___ ; 54.74 65.41 0375 0.432 0300 -- 031 034 0.74 ' 0394 1.71 1.47 2.17 3.00 3.63 5X12 7.66 .1035 1231 14.98 0308 0358 ' 0382 0.400 0.436 0352 0.600 0.636 .0374 2144 3.66 631 6.41 933 13.70 1838 2235 2734 .20.78 -,:0.750 2837 0364 4339 0375 3835 63.16 72.42 -_ -- From Standard Specifications for Welded and Seamless Steel Pipe of the American Society for Testing Materials, A.S.TM. Designation A120. * Sixes larger than those shown in the table are measured by their outside diameter, such as 14 in. outside diameter, etc. These larger sixes will be furnished With plain ends, unless otherwise specified. The weights ' will correspond to the manufacturers' published standards although it is possible to calculate the theoretical weights for any given sire and wall thickness on the basis of 1 cu in. of steel weighing 0.2833 lb. > . b The American Standard for Wrought-iron and Wrpught^Steel Pipe A.8.A. B36.10-1939 has assigned no schedule number to Double Extra-Strong pipe. 0 A 10 in. Standard Weight pipe is also available with.0.279 in. wall thickness, but this wall is not covered .by a Schedule Number. d Owing to a departure from the Standard-Weight and Extra-Strong wall thicknesses for the 12 in. nominal slxe. Schedules 40 and 60, Table 2 of the A.8.A. B36.10-1939, Standard for Wrought-iron and Wrought-Steel Pipe, the regular Standard and Extra-Strong wall thicknesses (0.375 in. and 0.600 in.) have been substituted. weights of each nominal size for manufacturing reasons as well as to afford interchangeability in threading, and other elements associated with fabri-' cation and erection.- Hence the difference in wall thickness is accom panied by a corresponding change in inside diameter. In sizes up to 14 in., pipe is designated by its nominal size which corresponds roughly to the inside diameter of Schedule 40 pipe.i In-sizes 14 in. and- upward,1 pipe is designated by its outside diameter (O.D.), and the wall thickness is speci-' fied. - -- - " - -. - i While the demands for pipe for tlie heating and ventilating industry-are reasonably well served by Schedule 40 (standard weight) pipe, the erection