INFORMATION SHEET
NOMINAL BORE PIPE DIMENSIONS
STAINLESS STEEL NOMINAL BORE PIPE DIMENSIONS (METRIC)
We stock the full range of nominal bore pipe both seamless and welded from 1/8" NB to 12" NB in both 304L and 316L.
Separate information sheets covering nominal bore fittings, BSP fittings and flanges are also available. Please contact our sales desk for details
 
                                             
   
   
  PIPE SIZE OD mm 5S 10S 10 40 STD 40S 80 E.H. 80S 160 DBLE E.H.  
   
  1/8" 10.29   1.25   1.73 1.73 2.41 2.41      
    .28   .37 .37 .48 .48      
  1/4" 13.72   1.65   2.24 2.24 3.02 3.02      
    .48   .64 .64 .81 .81      
  3/8" 17.15   1.65   2.31 2.31 3.20 3.20      
    .64   .86 .86 1.12 1.12      
  1/2" 21.34 1.65 2.11   2.77 2.77 3.73 3.73 4.78 7.47  
  .81 1.01   1.29 1.29 1.64 1.64 1.98 2.65  
  3/4" 26.67 1.65 2.11   2.87 2.87 3.91 3.91 5.56 7.82  
  1.03 1.30   1.71 1.71 2.23 2.23 2.94 3.69  
  1" 33.40 1.65 2.77   3.38 3.38 4.55 4.55 6.35 9.09  
  1.31 2.12   2.54 2.54 3.28 3.28 4.30 5.75  
  1 1/4" 42.16 1.65 2.77   3.56 3.56 4.85 4.85 6.35 9.70  
  1.67 2.73   3.43 3.43 4.53 4.53 5.69 7.88  
  1 1/2" 48.26 1.65 2.77   3.69 3.69 5.08 5.08 7.14 10.16  
  1.93 3.15   4.11 4.11 5.49 5.49 7.34 9.69  
  2" 60.33 1.65 2.77   3.91 3.91 5.54 5.54 8.74 11.07  
  2.42 3.98   5.52 5.52 7.59 7.59 11.28 13.65  
  2 1/2" 73.03 2.11 3.05   5.16 5.16 7.01 7.01 9.53 14.02  
  3.74 5.34   8.76 8.76 11.58 11.58 15.14 20.70  
  3" 88.90 2.11 3.05   5.49 5.49 7.62 7.62 11.13 15.24  
  4.58 6.54   11.45 11.45 15.50 15.50 21.65 28.09  
  4" 114.30 2.11 3.05   6.02 6.02 8.56 8.56 13.49 17.12  
  5.92 8.48   16.31 16.31 22.65 22.65 34.02 41.63  
  5" 141.30 2.77 3.4   6.55 6.55 9.52 9.52 15.88 19.05  
  9.50 11.74   22.10 22.10 31.41 31.41 49.83 58.28  
  6" 168.28 2.77 3.4   7.11 7.11 10.97 10.97 18.26 21.95  
  11.47 14.04   28.68 28.68 43.19 43.19 68.56 80.36  
  8" 219.08 2.77 3.76   8.18 8.18 12.70 12.70 23.01 22.23  
  14.99 20.25   43.16 43.16 65.59 65.59 112.90 109.48  
  10" 273.05 3.4 4.19   9.27 9.27 15.09 12.70 28.58 25.40  
  22.97 28.20   61.20 61.20 97.40 81.55 174.82 157.41  
  12" 323.85 3.96 4.57   10.31 9.53 17.48 12.70 33.32 25.40  
  31.72 36.53   80.91 74.92 133.98 97.46 242.28 189.70  
  14" 355.60 3.96 4.78 6.35 11.09 9.53 19.05 12.70 35.71    
  34.87 41.92 55.56 95.90 81.33 160.44 107.39 285.88    
  16" 406.40 4.19 4.78 6.35 12.70 9.53 21.44 12.70 40.49    
  42.18 47.99 63.57 125.12 93.27 206.52 123.30 370.73    
  18" 457.20 4.19 4.78 6.35 14.28 9.53 23.83 12.70 45.24    
  47.15 54.06 71.64 158.22 105.16 258.38 139.15 466.35    
  20" 508.00 4.77 5.53 6.35 15.09 9.53 26.19 12.70 50.01    
  60.13 69.62 79.71 186.10 117.15 315.74 155.12 573.18    
  22" 558.80 4.77 5.53 6.35   9.53 28.58 12.70 53.98    
  66.20 76.66 87.79   129.13 379.14 171.09 681.82    
  24" 609.60 5.53 6.35 6.35 17.48 9.53 30.96 12.70 59.54    
  83.70 95.86 95.86 258.94 141.12 448.34 187.06 819.55    
 
DIMENSIONS IN BOLD, WEIGHTS IN ITALICS
 
                                               

TYPE 304 STAINLESS STEEL    TYPE 316 STAINLESS STEEL    ASA FLANGES    BS10 TABLE FLANGES    
BS 4504 PIPE FLANGES    HYGEINIC CLAMP    NOMINAL BORE FITTINGS    
QUICK RELEASE COUPLINGS     HYGEINIC FITTINGS RJT    METRIC TUBE AND FITTINGS    NOMINAL BORE PIPE

http://www.allstainlessltd.co.uk