Document VKO3xeorL2qbj8xDr4ZDdnJMj

574 CHAPTER 26 1951 Guide of pipe by welding sometimes warrants using lighter wall thicknesses. The considerations governing pipe wall thickness and its relation to joint design are covered in the American Standard Code for Pressure Piping, ASA B31.1-1942, see Section 122. Standard schedules of pipe thick nesses are contained in the American Standard for Wrought-Iron and Wrought-Steel Pipe, ASA B36.10, which includes standard-weight and Table 3. Standard Dimensions and Weights, and Tolerances in Diameter and Wall Thickness foe Coppeb Wateb Tubbs* (AU tolerance* in tki* table era plus end minus except ae otherwise indicated) Average Out side Dumsteb Standabd Wateb Sits, In. Actual Outside In. ToL&iuircc. In. Wall Tncxnsa In. TtpbK TttbL TttbM Theoretical Weight. Lb res Ft Annealed Nominal Tolerance Type M H X 8 H 31 i m 2. 2M 3M 5 8 10 12 0.250 UJ/i> 0.626 0.750 1.375 1.625 2.125 2.625 3.125 3.625 5.125 8.125 10.125 12.125 st r 1 'z. 0.002 0.002 0.0025 0.0025 0.001 0.001 0.001 0.001 0.032 0.032 0.049 0.049 0.0025 0.003 0.0035 0.001 0.001 0.001 0.0015 0.00J6 0.049 0.065 0.065 04)65 0.0045 0.005 0.005 0.005 0.002 0.002 0.002 0.002 04)72 0.083 0.095 0.109 0.005 0.005 0.005 0.005 0.002 0.002 0.002 0.002 0.120 0.134 0.160 0.192 0.006 0.003 0.008 +0.002 -0.004 +0.002 "0.006 +0.002 -0.006. 0.271 0.338 0.405 I 0.003 0.004 0.004 0.004 0.004 0.0045 0.0045 0.0045 04)05 0.007 0.007 0.007 04)08 0.010 0.010 0.012 0.025 0.030 0.035 04)40 0.042 04)45 0.050 0.055 0.060 0.070 0.080 0.090 0.100 0.110 0.125 0.140 0.016 0.018 0,020 0.200 0.250 0.2S0 0.0025 0.0035 0.0035 0.0035 0.0035 0.004 04)04 04)045 0.0045 0.006 0.006 0.007 0.007 0.009 0.010 0.010 1 o 2 0.025 0.025 0.025 04)28 04)30 0.032 0.035 0.042 0.049 04)58 0.065 0.072 0.083 0.095 0.109 0.122 fed *o 8. H 0.0025 0.0025 0.0025 0.0025 0.085 0.068 0.134 0.126 04169 0.193 0.344 0585 04)68 0.107 0.145 0504 0.0025 0.003 04)035 0.0035 0.418 0.641 0.839 2.04 0.302 0.455 0.655 0.884 0563 0528 0.465 0.682 0.004 0.006 04)06 0.006 U6 1.14 24)6 2.93 2.48 44)0 353 24)3 2.68 04)07 04)09 0.009 0.010 5.12 651 9.67 13.9 4.29 558 7.61 105 358 4.66 6.66 8.92 0.014 0.016 04)18 0.170 0.212 0.254 0.014 25:9 0.015 405 0.016 575 195 30.1 40.4 165 25.6 36.7 . * From Standard Specifications for Copper Water Tube of the American Sodetg far Testing Material* A.o.TJa. Designation B88-41. .. Notb 1:--For eopper gas and oil burner tubes, the tolerances shown above for various wall thicknesses (type K) apply irrespective of diameter. ^ Nora 2.---For tube* other than round no standard tokranoeo are established. These apply to condenser and heat exchanger tubes. do not extra-strong thicknesses in Schedules 40 and 80, respectively, and eight other schedules of varying wall thickness to provide for different service conditions. Dimensions and other useful data for Schedules .30 and 40 pipe are given in Table 1. Table 2 from A.S.T.M. Specifications A53 and A120 combines the schedule thicknesses of ASA B36.10 and the old series designations. 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 arc two pieces coupled together. pipe, Fittings, Welding 575 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. In addition to IPS copper pipe, several varieties of copper tubing are in use with either flared or compression couplings or soldered joints. Dimen sions of copper water tubing intended for plumbing, underground water service, fuel-oil lines, gas lines, etc., have been standardized by the U. S. Government and the American Society for Testing Materials. There are Table 4. Thbbual Expansion op Pipe in Inches pbb 100 ft* {Far superheated steam and other fluid* refer to tompertOur* column) Saturated Steam Elongation in Inches pee 100 it tbom -- 20 F up Saturated Steam Elongation nr Inches peb 100 FT THOM -- 20 F UP Tem Vacuum Inches of Hg. perature Pressure Fahren Psig heit Degrees CastIron Pipe Steel Pipe Tem Wrooght- Iroa Pipe Copper Pipe Pressure Psig perature Fahren heit Degrees CastIron Pipe C3S?Steel Pipe WroughtIron Pipe 2Q39 2A89 27.99 26.48 24.04 20.27 14.63 6.45 -20 0 0 0 0 2.5 220 1.634 1.852 1.936 2.720 0 0.127 0.145 0.152 0.204 10.3 240 1.780 2.020 2.110 2.960 20 0.255 0.293 0.306 0.442 20.7 260 1,931 2.183 2.279 3.180 40 0.390 0.430 0.465 0.655 34.5 280 2.085 2.350 2.465 .3.422 60 0.518 0.593 0.620 0.888 52.3 300 2.233 2.519 2.630 3.665 80 0.649 0.725 0.780 1.100 74.9 320 2.395 2.690 2.800 3.900 100 0.787 0.898 0.939 1.338 103.3 340 2.543 2.862 2.988 4.145 120 0.926 1.055 1.110 1.570 138.3 360 2.700 3.029 3.175 4.380 140 1.051 1.209 1.265 1.794 180.9 380 2.859 3.211 3.350 4.62S 160 1.200 1.368 1.427 2.008 232.4 400 3.008 3.375 3.521 4.870 180 1.345 1.528 1.597 2.255 293.7 420 3.182 3.566 3.720 5.118 200 1.495 1.691 1.778 2.500 366.1 440 3.345 3.740 3.900 5.358 KFiom PipingrHaruIbook, by Walker and Crocker. This table gbree the expansion from--20 F to the temnerature In Question. To obtain the amount of expansion between any two temperatures take tne de ference between the figures In the table for those temperatures. For example, if a steel pipe xa installed at a temperature of 60 F and Is to operate at 800 F, the expansion would be 2.619 -- 0.693 1,929 m. three standard wall-thickness schedules of copper water tubing classified in accordance with their principal uses as follows: Type K--Designed for underground services and general plumbing service. Type L--Designed for general plumbing purposes. Type M--Designed for use with soldered fittings only. In general, Type K is used where corrosion conditions are severe, and Types L and M where such conditions may be considered normal as, for instance, in heating work. Types K and L are available in both hard and soft tempers; Type M is available only in hard temper. Where flexibility is essential as in hidden replacement work, or where as few joints as possible are desired as in fuel-oil lines, the soft temper is commonly used. In new or exposed work copper pipe of a hard temper is generally used. All three classes are extensively used with soldered fittings. Standard dimensions, weights, and (iiameter and wall-thickness toler, ances for these classes of copper tubing are given in Table 3. Copper pipe is also available with dimensions of steel pipe. Refrigeration lines used in connection with air conditioning equipment also employ copper tubing extensively. For refrigeration use where tubing absolutely free from scale and dirt is required, bright annealed copper