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ASTM A192 Dimensional Table

Cold drawn heat exchangers tubes with minimum wall thickness (sizes in inches)
Outside Minimum wall thickness
diameter BWG (inch) 20 (.035) 18 (.049) 16 (.065) 14 (.083) 13 (.095) 12 (.109) 11 (.120) 10 (.134) 9 (.148) 8 (.165) 7 (.180) 6 (.203) 5 (.220)
[mm] [inch] [mm] 0.89 1.24 1.65 2.11 2.41 2.77 3.05 3.4 3.76 4.19 4.57 5.16 5.59
   1/2 lb/ft 0.19 0.256 0.327 0.399 0.441 0.487 0.519 0.555 0.586        
12.7 0.5 kg/m 0.283 0.381 0.487 0.594 0.657 0.725 0.773 0.826 0.873        
   5/8 lb/ft 0.242 0.328 0.423 0.521 0.581 0.647 0.696 0.752 0.804        
15.88 0.625 kg/m 0.36 0.488 0.63 0.776 0.865 0.964 1036 1120 1198        
   3/4 lb/ft   0.4 0.518 0.643 0.72 0.807 0.872 0.948 1021        
19.05 0.75 kg/m   0.595 0.771 0.957 1072 1202 1299 1412 1521        
   7/8 lb/ft   0.472 0.614 0.767 0.864 0.973 1056 1158          
22.23 0.875 kg/m   0.702 0.913 1141 1285 1448 1571 1722          
  1 lb/ft   0.543 0.709 0.887 0.998 1128 1225 1342 1456 1587 1696    
25.4 1 kg/m   0.808 1056 1321 1487 1680 1824 1998 2169 2363 2526    
  1.25 lb/ft   0.686 0.9 1131 1277 1448 1577 1734 1891 2071 2225 2451 2607
31.75 1.25 kg/m   1022 1340 1684 1902 2157 2349 2583 2816 3085 3313 3650 3882
  1.5 lb/ft   0.83 1090 1375 1556 1769 1930 2128 2326 2556 2753 3047 3253
38.1 1.5 kg/m   1236 1624 2048 2317 2634 2875 3169 3464 3807 4100 4538 4845
  2 lb/ft     1472 1863 2114 2409 2636 2914 3196 3525 3810 4241 4547
50.8 2 kg/m     2192 2775 3148 3588 3925 4340 4759 5250 5674 6316 6771
  2.5 lb/ft     1854 2351 2671 3050 3341 3701 4066 4494 4867 5435 5839
63.5 2.5 kg/m     2761 3502 3978 4542 4976 5512 6055 6693 7249 8094 8696
  3 lb/ft       2840 3228 3691 4047 4487 4935 5464 5924 6628 7132
76.2 3 kg/m       4229 4808 5497 6027 6683 7350 8137 8823 9871 10622

Cold drawn heat exchangers tubes with average wall thickness (sizes in inches)
Outside Average wall thickness
diameter BWG (inch)   20 (.035) 18 (.049) 16 (.065) 14 (.083) 13 (.095) 12 (.109) 11 (.120) 10 (.134) 9 (.148) 8 (.165) 7 (.180) 6 (.203) 5 (.220)
[mm] [inch] [mm] 0,89 1,24 1,65 2,11 2,41 2,77 3,05 3,40 3,76 4,19 4,57 5,16 5,59
   1/2 lb/ft 0.173 0.236 0.302 0.369 0.41 0.445 0.487 0.523 0.557        
12,70 0.5 kg/m 0,259 0,351 0,450 0,551 0,612 0,678 0,726 0,780 0,829        
   5/8 lb/ft 0.22 0.301 0.388 0.48 0.537 0.6 0.647 0.703 0.754        
15,88 0.625 kg/m 0,328 0,447 0,579 0,716 0,801 0,897 0,965 1,046 1,124        
   3/4 lb/ft 0.267 0.366 0.475 0.591 0.664 0.745 0.807 0.881 0.952        
19,05 0.75 kg/m 0,398 0,547 0,708 0,881 0,989 1,110 1,203 1,312 1,418        
   7/8 lb/ft   0.432 0.562 0.702 0.791 0.891 0.967 1.06          
22,23 0.875 kg/m   0,643 0,836 1,045 1,177 1,326 1,439 1,577          
  1 lb/ft   0.497 0.649 0.812 0.918 1.037 1.128 1.239 1.346 1.471 1.575    
25,40 1 kg/m   0,740 0,966 1,212 1,366 1,550 1,681 1,845 2,006 2,192 2,347    
  1 1/4 lb/ft   0.628 0.822 1.034 1.172 1.328 1.448 1.597 1.741 1.912 2.056 2.272 2.417
31,75 1.25 kg/m   0,933 1,225 1,542 1,744 1,980 2,159 2,377 2,595 2,848 3,063 3,383 3,606
  1 1/2 lb/ft   0.759 0.996 1.256 1.426 1.619 1.769 1.955 2.137 2.353 2.537 2.814 3.009
38,10 1.5 kg/m   1,127 1,483 1,870 2,121 2,413 2,636 2,909 3,184 3,504 3,779 4,191 4,481
  2 lb/ft     1.343 1.699 1.933 2.201 2.409 2.67 2.929 3.246 3.499 3.896 4.185
50,80 2 kg/m     2,000 2,533 2,876 3,281 3,591 3,974 4,362 4,816 5,210 5,807 6,232
  2 1/2 lb/ft     1.69 2.143 2.44 2.783 3.05 3.385 3.717 4.126 4.46 4.98 5.36
63,50 2.5 kg/m     2,517 3,194 3,631 4,148 4,547 5,039 5,539 6,128 6,641 7,424 7,983
  3 lb/ft       2.586 2.947 3.365 3.691 4.102 4.508 5.006 5.421 6.064 6.536
76,20 3 kg/m       3,855 4,385 5,016 5,502 6,104 6,717 7,440 8,072 9,040 9,734

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