Seamless pipes

Seamless pipes differ from electric resistance welded pipes by not having the connecting seam. Due to that seamless pipes have high durability and safety performance and they are usually used in sectors, where the human safety depends on durability of the material. Seamless pipes are manufactured from whole steel bars, in which during manufacturing process penetrating opening are formed. Manufactured according to standard: EN10220, DIN2448, GOST 8732, steel grade S235JRH, P235TR2, S355J2H, P355NH. Each pipe is tested under test pressure.

According to standard EN10220, DIN2448, GOST8732, steel grade S235JRH, S355J2H, P355NH.

Nominal size, inches Wall thickness, mm / Theoretical weight, kg/m
d t
    2,0    2,3    2,5    2,6    2,9    3,0    3,2    3,5    3,6   4 4.5 5 5.6 6.3 7.1 8
16 0.69                              
20 0.89                              
21.3   1.08 1.16 1.2 1.32 1.35 1.43 1.54 1.57 1.71            
22   1.12   1.24 1.37   1.48   1.63 1.78            
25   1.29 1.39 1.44 1.58 1.63 1.72 1.86 1.9 2.07 2.27 2.47        
26.9   1.4 1.5 1.56 1.72 1.77 1.87 2.02 2.07 2.26 2.49 2.7 2.94      
28         1.8 1.85       2.37            
30     1.7 1.76 1.94 2 2.11 2.29 2.34 2.56 2.83 3.08 3.37 3.68    
31.8     1.81 1.87 2.07 2.13 2.26 2.44 2.5 2.74 3.03 3.3 3.62 3.96 4.32  
33.7     1.92 1.99 2.2 2.27 2.41 2.61 2.67 2.93 3.24 3.54 3.88 4.26  4,66  
38     2.19 2.27 2.51 2.59 2.75 2.98 3.05 3.35 3.72 4.07 4.47 4.92  5,41  
42.4     2.46 2.55 2.82 2.91 3.09 3.36 3.44 3.79 4.21 4.61 5.08 5.61  6,18  6,79
44.5     2.59 2.69 2.97 3.07 3.26 3.54 3.63 3.99 4.44 4.87 5.37 5.93  6,55  7,20
48.3     2.82 2.93 3.25 3.35 3.56 3.87 3.97 4.37 4.86 5.34 5.9 6.53  7,21  7,95
51     2.99 3.1 3.44 3.55 3.77 4.1 4.21 4.64 5.16 5.67 6.27 6.94  7,69  8,48
54         3.65   4.01   4.47 4.93 5.49 6.04 6.68 7.41  8,21  9,07
57         3.87 3.99 4.25 4.62 4.74 5.23 5.83 6.41 7.1 7.88  8,74  9,67
60.3         4.1 4.24 4.51 4.9 5.03 5.55 6.19 6.82 7.55 8.39  9,31  10,32
63.5         4.33 4.48 4.76 5.18 5.32 5.87 6.55 7.21 8 8.89  9,87  10,95
70         4.8 4.96 5.27 5.74 5.89 6.51 7.27 8.01 8.89 9.9  11,01  12,23
76.1         5.23   5.75   6.44 7.11 7.95 8.77 9.74 10.84  12,08  13,43
82.5             6.26 6.82 7 7.74 8.66 9.56 10.62 11.84  13,20  14,70
88.9             6.76   7.57 8.37 9.37 10.34 11.5 12.83  14,32  15,96
101.6                 8.7 9.63 10.78 11.91 13.26 14.81  16,55  18,47
108               9.02 9.27 10.26 11.49 12.7 14.14 15.8  17,67  19,73
114.3                 9.83 10.88 12.18 13.48 15.01 16.78  18,77  20,97
121                   11.54 12.93 14.3 15.94 17.82  19,94  22,29
127                   12.13 13.59 15.04 16.76 18.75  20,99  23,48
133                   12.72 14.26 15.78 17.59 19.68  22,04  24,66
139.7                   13.39 15 16.61 18.52 20.72  23,22  25,98
152.4                     16.41 18.17 20.27 22.7  25,44  28,49
159                     17.14 18.99 21.18 23.72  26,60  29,79
168.3                     18.18 20.13 22.47 25.17  28,22  31,62
177.8                         23.78 26.64  29,89  33,50
193.7                         25.98 29.11  32,67  36,63
203                                38,47
219.1                           33.06  37,12  41,65
244.5                           37.01  41,57  46,66
273                           41.43  46,56  52,28
298.5                              51,02  57,31
323.9                              55,47  62,32

 

Outer diameter, mm Wall thickness, mm / Theoretical weight, kg/m
d t
  8.8 10 12.5 14.2 16 20 25 30 36 40 45 50 55  
44.5 7.75                          
48.3 8.57                          
51 9.16                          
54 9.81                          
57 10.46 11.59                        
60.3 11.18 12.4 14.73 16.14                    
63.5 11.87 13.19 15.72 17.26                    
70 13.28 14.8 17.72 19.54                    
76.1 14.6 16.3 19.6 21.68 23.71 27.67                
82.5 15.99 17.88 21.58 23.92 26.24 30.83                
88.9 17.38 19.46 23.55 26.16 28.76 33.98 39.39              
101.6 20.14 22.59 27.47 30.61 33.77 40.25 47.22              
108 21.53 24.17 29.44 32.85 36.3 43.4 51.17              
114.3 22.89 25.72 31.38 35.05 38.79 46.51 55.05              
121   27.37     41.43 49.81 59.18              
127 25.65 28.85 35.29 39.5 43.8 52.77 62.88 71.76            
133 26.95 30.33 37.14 41.6 46.16 55.73 66.58 76.2            
139.7 28.41 31.98 39.21 43.95 48.81 59.04 70.71 81.16            
152.4 31.16 35.12 43.12 48.39 53.82 65.3 78.54 90.55            
159 32.59 36.74 45.16 50.7 56.42 68.55 82.61 95.43            
168.3 34.61 39.04 48.03 53.96 60.09 73.14 88.34 102.31 117.45          
177.8 36.67 41.38 50.95 57.29 63.84 77.83 94.2 109.34 125.88          
193.7 40.12 45.3 55.85 62.86 70.11 85.67 104 121.11 140 151.61        
203   47.59     73.78 90.26 109.74     160.78        
219.1 45.64 51.56 63.68 71.75 80.14 98.2 119.66 139.9 162.55          
244.5 51.15 57.83 71.51 80.64 90.16 110.72 135.32 158.69 185.1 201.72 221.39      
273 57.33 64.86 80.3 90.62 101.4 124.78 152.89 179.77 210.4 229.83 253.01 274.96    
298.5 62.87 71.14 88.16 99.55 111.46 137.36 168.61 198.64 233.04 254.98 281.31      
323.9 68.38 77.41 95.99 108.45 121.49 149.88 184.27 217.43 255.59 280.04 309.5 337.72 364.71  
355.6 75.26 85.22 105.76 119.55 133.99 165.52 203.81 240.88 283.73 311.31 344.67 376.8 407.7  
406.4 86.28 97.75 121.42 137.34 154.04 190.57 235.13 278.46 328.83 361.42 401.05      
457   110.23 137.02 155.06 174 215.53 266.33  315,89 373.75 411.33 457.2      
508     152.74 172.91 194.12 240.68 297.77  353,62 419.02 461.64