Document O30ypwZk5Q4wwGB27aQyRJdkK

620 CHAPTER 27 1955 Guide, . Table 2. Dimensions and Properties op Copper Tube CBased on ASTM B-88) , Nom inal Type Size Diameter O. D. I. D. In. In. ' 'Surface Wall Abba Sq Thick-. Ft/LinFt In. O. D. I. D. Section Abba ' Sq In. Area'ov Metal Sq In O. D. I. D. Volume Cal/Lri Ft Weight* X<Be/IuN Wobbiho PfilA "M H k ,L k L 0.375 0.305 0.035 0.0982 0.0798 0.375 0,315 .0.030 0.0982 0.0825 0.500 0.402 '0.049 0.131 0:105 0.500 0.430 0.035 0.131 0.113 o.iio 0.110, 0.196 0.196 0.0730 0,0779 0.127 0.145 0.0374 0.0324 0.0695 0.0512 0.00379 0.00404 0.00660 0.00753 0.145 0.126 . 0.269 . 0.198 764 983 677 H K 0.625 0.527 0.049 0.164 0.138 0.306 0.218 L 0.625 0.545 0.040 0.164 0.143 , 0.306 0.233 H K ; 0.750 0.652 0.049 0.193 0.171 0.441 0-334 L 0.750 0.666 0,042 0.193 0.174 0.441 0,348 H K 0.875 0.745 0.065 0.229 0.195 0.601 0.436 L 0.875 0.785 0.045- 0.229 0.206 .0.601 0.480 0.0887 .0.0735 0.108 0.0934 0.165 0.117 0.0113 0.0121 0.0174 0.0181 0.0227 0.0250 0.344 0.285 0.418 0.362 0.641 0.455 779 625 643 547 747 497 1 K 1.125 0.995 0.065 0.295 0v260 0.994 0.778 0.216 0.0405 0.839 L 1.125 1.025 .0.050 .0.295 0.268 , 0.994 0.852 0.169 0.0442 0.655 574 432 K 1.375 1:246 , 0.065 0.360 0.326 ,1.48 L 1.375 1.265 0.055 0.360 0.331 1.48 M 1.375 L291 0.042 0.360 0.338 1.48 1.22. 1.28 1.31 0.268 0.228 0176 0.0634. 1.04 0.0655 ' 0.884 0.0681 . 0.682 466 387 293 1W K 1.625 1.481 Lv: 2.625 1.505 . M 1.625 r1.527 2 k~ 2.125 1.959 L 2.125 1.985 M 2.125 2.009 0.072 0.425 0.388 0.060 0.425 0.394 0.049 0.425 0.400 0.083. 0.556 0.513 0.070 0.556 0.520 0.058 0.556 0.526 2.07 2.07 2.07 3.56 3.56 3.56 1.72 1.78 1.83 3.01 3.10 3.17 0.351 0.295 0.243 0.532 0.452 0.377 0.0894 0.0925 0.0950 0.157 0.161 0.164 1.36 1.14 0.940 2.06 ' 1.75 1.46 421 359 . 289: . 376 316 255 2a K 2.625 2.435 -0.095 0.687 0.638 5.41 L 2.625 2:465 . 0.080 0.687 0.645 5.41 M 2.625 .2.495 0.065 0.687 0.653 5.41 4.66 4.774.89 0.755 0.640 0.523 0.242 0.247 0.254 2.93 2.48 2.03 352 295 234 3 K :3.225 2.907 0.109 0.818 0.761 . 7.67 L 3.125 2.945 0.090 0.818 0:771 7.67 M 3.125 2.981 0.072 0.818 0.780 7.67 iv> . LK 3.625 3.385 0.120 0.949 0.8S6 10.3 3.625 3.425 0.100 0.949 .0.897 10.3 M ; 3.625 3.459 0.083 0.949 0.906 10.3 LA K . 4.125 3.857 0.134 1.08 1.01 13.3 4.125 3.905 0.110 1.08 1.02 13.3 ., M,. 4.125 3.935 0:095 1.08 1.03 13.3 6.64 6.81 6.98 9.00 9.21 9.40 11.7 12.0 12.2 1.03 0.858 . 0.691 1.32 1.11 0.924 i.68 1.39 1.20 . 0.345 0.354 0.362 0.468 0.478 0.489 0.607 0.623 0.634 4.00 3.33 2.68 5.12 4.29 3.58 .6.51 ' 5.38 4.66 343 278 220 324 268 218 315 256 .217 5 * . K: L M 5.125 4.805 0.160 5.125 4.875 0.125 5.125 4.907 0.109 1:34 1.34 1.34 1.26 20.7 1.28 20.7 1.29 20.7 16.1 18.7 18.9 2.50 1.96 1.72 . 0.940 0.971 -0.981' ' 9.67 . 76..6616 307 234 203 6 : K: L M 6.125 5.741 6.125 5.845 6.125 5.881 0.192 0.140 0.122 1.60 1.60 1.60 1.50 1.53 1.54 29:4 29.4 29.4' 25.9 26.8 27.2 3.50 . 2.63 2.30 1.35 1.39 1.42 13.9 10.2 8.92- 308 221 '190 8 K 8.125 7.583 0.27! 2.13 1.99 51.8 45.2 L 8.125 7.725 0.200 2.13 2.02 51.8 46.9 . ;M . >8.125 7.785 0.170 2.13 2.04 51.8 - 47.6 6.69 4.98 4.25 2.34 2:43 2.47 25.9 19.3 16.5 330 220309 10 - 'K: 10.125 9.449 0.338 2.65 2.47 80.5 . L 10.125 9.625 0.250 2.65 2.52 80.5 0.212M 10.125 9.701 2.65 2.54 80.5 70.1 72.8 73.9 10.4 7.76 6.60 3.65 3.79 3.84 40.3 30.1 25.6 332 220412 i2 K 12.125 11.315 0.405 3.17 2.96 115. L - 12.125 11.565 0.280 i_3.17 3.03 115. 101.' 105: M 12.125 11.617 0.254 3.17 3.04 116- 106. 14.9 10.4 9.47 5.24 * 5.45 6.50 57.8 40.4 36.7 334 225 204 __________ . v* Weight per foot is based on tubing without couplings. ^ Working pressure is based on the American Standard Code for Pressure Piping, published by the ASMS, revised November, 1952 for plain end tubing (sweat joints). p _ 2stm___ D 0.8<m. where P = allowable pressure, pounds per square inch.' * = 5125 psi allowable fiber stress, pounds per square.iDcb- tm = minimum wall thickness, inches. D ~ maximum O. D., inches. Since,copper tubing: will be subject-to a certain.amount of annealing when fiber stress is baaed on annealed tubing at 250 F. jointo-are.^* 0 Types K and L furnished in both hard and soft temper*, Type M in hard only. Standard straight lengths are 12 and 20 ft. Standard coils (H to 1H inch) are 60 ft. Pipe, Fittings, Welding 621 copper and brass;pipe have always been used in heating, ventilating, and water supply installations, but the cost with standard dimensions r for threaded connections has been high. The introduction of fittings which permit erection by soldering or sweating, allows the use of pipe with' thinner walls than would be possible with threaded connections, thereby reducing the cost of installations. .. ' ' COMMERCIAL PIPE DIMENSIONS Commercial pipe dimensions are covered in the following specifications of the American Society far Testing Materials: (1) steel--ASTM A-120and A-53, (2) wrought-iron--ASTM A-72, and (3) copper tube--ASTM A-88. Tables 1 and 2 are based on these specifications. In addition to the specifications for these three materials, there are Table 3. Table of Availability fob Steel Pipe Material Specification Available Sizes (Inclusive) Inches Diam. Allowable Fiber Stress S* psi Butt-weld Lap-weld Electric-resistance Seamless A-120 A-53 A-120 A-53 A-53 Grade A A-53 Grade B A-53 Grade A A-53 Grade B A-120 H to 4 H to 4 2 to 12 2 to 24 2 to 24 2 to 24 2 to 24 2 to 24 2 to 12 6,225 6,750 8,400 9,000 . 10,200'' 12,750b 12,000 15,000 10,400 * For me in the equation p= (fm --c) D --0.8 (tm --c) Sr.ee A.m__e_ri,can S: tand,ard, C_od,e for Pressure Piping, pub- lished by ASMB, revised November, 1952. Where P -- working pressure, pounds per square inch. S -- fiberstress, pounds per square inch. tm" -- 0.87_5 x. wa.ll thickness', inches. D ~ O. D,,inches. e = joint factor = 0.05 for 1-in. and smaller size or 0.065 for larger than 1-in. size. . b For electric resistance welded pipe for applications where the temperature-is below 650 F, and where furnished under this classification is subjected to supplemental tes ts and/or heat treatments as agreed t * tTe supplier and the purchaser, and whereby such supplemental tests and/or heat treatments demon strate the strength characteristics of the weld to be equal to the minimum tensile strength specified for the Pipe, the S values equal to the corresponding seamless grades may be used. standards for copper or brass IPS, clay or concrete, and cast-iron pipe. Copies of the following specifications may be obtained from the American Society for Testing Materials: (1) steel, wrought-iron and cast-iron--Series A) (2) copper and brass--Series B, and (3) clay and concrete--Series C. Table 3 lists the sizes available in each of the specifications and classes of steel pipe. Note that butt-weld is not available above 4-in.'size and that lap-weld, electric-resistance-weld, and seamless are not available be low 2-in. size. Listed in Table 3 is the formula for allowable working,pressures as given h1 the American Standard Code for Pressure. Piping.1 In this formula is a lactor c, which is intended as an allowance for corrosion, mechanical in jury, manufacturing tolerances, etc. At times this factor seems too con servative; for example, with J^-in., Schedule 40, steel pipe, the allowable working pressure is 314 psi. Yet this pipe is tested at 700 psi. The reasonjug in establishing the factor c which influences the working pressure, is that after nominal use the pipe may not be as sturdy as it was at the time