Pipe and Casing Specifications

Common Sizes and API Standards

Not Scheduled


Nom. Size O.D. Wall # / Ft. Wall # / Ft. Wall # / Ft. Wall # / Ft.
3" 3.500" 0.125" 4.51 0.156" 5.57 0.188" 6.65 0.250" 8.68
3-1/2" 4.000" 0.125" 5.17 0.156" 6.40 0.188" 7.65 0.250" 10.01
4" 4.500" 0.125" 5.84 0.156" 7.24 0.188" 8.66 0.219" 10.01
5" 5.563" 0.156" 9.01 0.188" 10.79 0.219" 12.50 0.244" 13.86
6" 6.625" 0.109" 7.59 0.125" 8.68 0.134" 9.29 0.156" 10.78
8" 8.625" 0.105" 9.55 0.134" 12.15 0.172" 15.53 0.188" 16.94
10" 10.750" 0.105" 11.94 0.134" 15.19 0.188" 21.21 0.203" 22.87
12" 12.750" 0.105" 14.18 0.134" 18.06 0.188" 25.22 0.203" 27.20
14" 14.000" 0.105" 15.58 0.134" 19.84 0.188" 27.73 0.203" 29.91
16" 16.000" 0.134" 22.71 0.188" 31.75 0.203" 34.25 0.219" 36.91
18" 18.000" 0.188" 35.76 0.203" 38.58 0.250" 47.39 0.281" 53.18
20" 20.000" 0.250" 52.73 0.281" 59.18 0.312" 65.60 0.344" 72.21
22" 22.000" 0.281" 65.18 0.312" 72.27 0.344" 79.56 0.406" 93.63
24" 24.000" 0.281" 71.18 0.312" 78.93 0.344" 86.91 0.406" 102.31
26" 26.000" 02.50" 68.75 0.281" 77.18 0.344" 94.26 0.406" 110.98
28" 28.000" 02.50" 74.09 0.281" 83.26 0.344" 101.53 0.406" 119.72
30" 30.000" 02.50" 79.43 0.281" 89.19 0.344" 108.95 0.406" 128.32
32" 32.000" 02.50" 84.77 0.281" 95.19 0.344" 116.30 0.406" 136.99
34" 34.000" 02.50" 90.11 0.281" 101.19 0.344" 123.65 0.406" 145.67
36" 36.000" 02.50" 95.45 0.281" 107.20 0.344" 131.00 0.406" 154.34
42" 42.000" 02.50" 111.47 0.375" 166.71 0.500" 221.61    
48" 48.000" 02.50" 127.49 0.375" 190.74 0.500" 253.65    

Common Sizes and API Standards

Not Scheduled - Heavy Wall


Nom. Size O.D. Wall # / Ft. Wall # / Ft. Wall # / Ft. Wall # / Ft.
3" 3.500" 0.281" 9.66            
3-1/2" 4.000" 0.281" 11.16            
4" 4.500" 0.250" 11.35 0.281" 12.66 0.312" 13.96    
5" 5.563" 0.275" 15.53 0.281" 15.85 0.312" 17.50 0.344" 19.17
6" 6.625" 0.188" 12.92 0.219" 14.98 0.250" 17.02 0.312" 21.04
8" 8.625" 0.203" 18.26 0.219" 19.66 0.264" 23.57 0.312" 27.70
10" 10.750" 0.219" 24.63 0.279" 31.20 0.344" 38.23 0.438" 48.24
12" 12.750" 0.219" 29.31 0.281" 37.42 0.312" 41.45 0.344" 15.58
14" 14.000" 0.219" 32.23 0.281" 41.17 0.344" 50.17 0.469" 67.78
16" 16.000" 0.281" 47.17 0.344" 57.52 0.406" 67.62 0.438 72.80
18" 18.000" 0.344" 64.87 0.406" 76.29 0.469" 87.81    
20" 20.000" 0.406" 84.96 0.438" 91.51 0.469" 97.83    
22" 22.000" 0.438" 100.86 0.469" 107.85 0.625" 142.68    
24" 24.000" 0.438" 110.22 0.469" 117.86        
26" 26.000" 0.438" 119.57 0.469" 127.88 0.562" 152.68    
28" 28.000" 0.438" 128.79 0.469" 137.83        
30" 30.000" 0.438" 138.29 0.469" 147.92        
32" 32.000" 0.438" 147.64 0.469" 157.94        
34" 34.000" 0.438" 157.00 0.469" 167.95        
36" 36.000" 0.438" 166.35 0.469" 177.97 0.562" 212.70    
42" 42.000"                
48" 48.000"                

Common Sizes and API Standards

Not Scheduled - Heavyer Wall


Nom. Size O.D. Wall # / Ft. Wall # / Ft.
3" 3.500"        
3-1/2" 4.000"        
4" 4.500"        
5" 5.563"        
6" 6.625" 0.344" 23.08 0.375" 25.03
8" 8.625" 0.344" 30.42 0.375" 33.04
10" 10.750"        
12" 12.750" 0.438" 57.59    
14" 14.000"        
16" 16.000" 0.469" 77.79    
18" 18.000"        
20" 20.000"        
22" 22.000"        
24" 24.000"        
26" 26.000"        
28" 28.000"        
30" 30.000"        
32" 32.000"        
34" 34.000"        
36" 36.000"        
42" 42.000"        
48" 48.000"