8615824687445 pipes@gneetube.com
enLanguage
Home > Knowledge > Details
Aug 26, 2025 Leave a message

Specification of API line pipe

API line pipe‌ is a pipeline material used to transport oil, natural gas, and water from extraction sites to processing facilities. It is primarily categorized into ‌seamless pipes‌ and ‌welded pipes‌. The applicable standards include ‌API SPEC 5L‌ and ‌GB/T 9711‌, with material grades ranging from ‌L245‌ to ‌X100‌ (e.g., X42, X52, etc.) to meet varying strength requirements.

 

API 5L line pipe

 

Specification of API line pipe

Line Pipe Size,Unit weight API SPEC 5L,GB/T9711,GOST 20295
OD WT Unit weight Steel Grade
in. mm in. mm Ib/ft kg/m A25 A B X42 46 52 X56 X60 65 K70
L175 L210 L245 L290 L320 L360 L390 L415 L450 L485
1.315 33.4 0.133 3.4 1.68 2.52 ● ● ●              
0.179 4.5 2.17 3.21 ● ● ●              
1.66 42.4 0.140 3.6 2.27 3.42 ● ● ●              
0.191 4.9 3.00 4.50 ● ● ●              
1.90 48.3 0.145 3.7 2.72 4.07 ● ● ●              
0.200 5.1 3.63 5.43 ● ● ●              
2-3/8 60.3 0.083 2.1 2.03 3.02 ● ● ● ● ● ● ●      
0.109 2.8 2.64 3.97 ● ● ● ● ● ● ● ● ● ●
0.125 3.2 3.01 4.51 ● ● ● ● ● ● ● ● ● ●
0.141 3.6 3.37 5.04 ● ● ● ● ● ● ● ● ● ●
0.154 3.9 3.66 5.43 ● ● ● ● ● ● ● ● ● ●
0.172 4.4 4.05 6.07 ● ● ● ● ● ● ● ● ● ●
0.188 4.8 4.40 6.57 ● ● ● ● ● ● ● ● ● ●
0.218 5.5 5.03 7.44 ● ● ● ● ● ● ● ● ● ●
0.250 6.4 5.72 8.51 ● ● ● ● ● ● ● ● ●  
2-7/8 73 0.083 2.1 2.48 3.67 ● ● ● ● ● ● ● ● ● ●
0.109 2.8 3.22 4.85 ● ● ● ● ● ● ● ● ● ●
0.125 3.2 3.67 5.51 ● ● ● ● ● ● ● ● ● ●
0.141 3.6 4.12 6.16 ● ● ● ● ● ● ● ● ● ●
0.156 4.0 4.53 6.81 ● ● ● ● ● ● ● ● ● ●
0.172 4.4 4.97 7.45 ● ● ● ● ● ● ● ● ● ●
0.188 4.8 5.40 8.08 ● ● ● ● ● ● ● ● ● ●
0.203 5.2 5.90 8.70 ● ● ● ● ● ● ● ● ● ●
0.216 5.5 6.14 9.16 ● ● ● ● ● ● ● ● ● ●
0.250 6.4 7.03 10.51 ● ● ● ● ● ● ● ● ●  
0.281 7.1 7.75 11.54 ● ● ● ● ● ● ● ●    
3-1/2 88.9 0.083 2.1 3.03 4.50 ● ● ● ● ● ● ● ● ● ●
0.109 2.8 3.95 5.95 ● ● ● ● ● ● ● ● ● ●
0.125 3.2 4.51 6.76 ● ● ● ● ● ● ● ● ● ●
0.141 3.6 5.06 7.57 ● ● ● ● ● ● ● ● ● ●
0.156 4.0 5.58 8.38 ● ● ● ● ● ● ● ● ● ●
0.172 4.4 6.12 9.17 ● ● ● ● ● ● ● ● ● ●
0.188 4.8 6.66 9.96 ● ● ● ● ● ● ● ● ● ●
0.216 5.5 7.58 11.31 ● ● ● ● ● ● ● ● ● ●
0.250 6.4 8.69 13.02 ● ● ● ● ● ● ● ● ● ●
0.281 7.1 9.67 14.32 ● ● ● ● ● ● ●      
0.318 8.1 10.85 16.14 ● ● ● ● ● ●        

 

Line Pipe Size,Unit weight API SPEC 5L,GB/T9711,GOST 20295
OD WT Unit weight Steel Grade
in. mm in. mm Ib/ft kg/m A25 A B X42 X46 X52 X56 X60 X65 X70
L175 L210 L245 L290 L320 L360 L390 L415 L450 L485
4-1/2 114.3 0.083 2.1 3.92 5.81   ● ● ● ● ● ● ● ● ●
0.125 3.2 5.85 8.77 ● ● ● ● ● ● ● ● ● ●
0.141 3.6 6.57 9.83   ● ● ● ● ● ● ● ● ●
0.156 4.0 7.24 10.88 ● ● ● ● ● ● ● ● ● ●
0.172 4.4 7.96 11.93   ● ● ● ● ● ● ● ● ●
0.188 4.8 8.67 12.96 ● ● ● ● ● ● ● ● ● ●
0.203 5.2 9.32 13.99   ● ● ● ● ● ● ● ● ●
0.219 5.6 10.02 15.01 ● ● ● ● ● ● ● ● ● ●
0.237 6.0 10.8 16.03 ● ● ● ● ● ● ● ● ● ●
0.25 6.4 11.36 17.03   ● ● ● ● ● ● ● ● ●
0.281 7.1 12.67 18.77   ● ● ● ● ● ● ● ● ●
0.312 7.9 13.97 20.73   ● ● ● ● ● ●      
0.337 8.6 15.00 22.42 ● ● ● ● ● ●        
5-9/16 141.3 0.125 3.2 7.27 10.89 ● ● ● ● ● ● ● ● ● ●
0.156 4.0 9.01 13.54 ● ● ● ● ● ● ● ● ● ●
0.188 4.8 10.79 16.16 ● ● ● ● ● ● ● ● ● ●
0.219 5.6 12.50 18.74 ● ● ● ● ● ● ● ● ● ●
0.258 6.6 14.62 21.92 ● ● ● ● ● ● ● ● ●  
0.281 7.1 15.85 23.50 ● ● ● ● ● ● ● ● ●  
0.312 7.9 17.50 25.99 ● ● ● ● ● ● ●      
0.344 8.7 19.19 28.45 ● ● ● ● ● ●        
6-5/8 168.3 0.156 4.0 10.79 16.21 ● ● ● ● ● ● ● ● ● ●
0.172 4.4 11.93 17.78 ● ● ● ● ● ● ● ● ● ●
0.188 4.8 12.99 19.35 ● ● ● ● ● ● ● ● ● ●
0.203 5.2 13.92 20.91 ● ● ● ● ● ● ● ● ● ●
0.219 5.6 14.98 22.47 ● ● ● ● ● ● ● ● ● ●
0.25 6.4 17.02 25.55 ● ● ● ● ● ● ● ● ● ●
0.28 7.1 18.97 28.22 ● ● ● ● ● ● ● ●    
0.312 7.9 21.04 31.25 ● ● ● ● ● ● ●      
0.344 8.7 23.08 34.24 ● ● ● ● ● ●        
0.375 9.5 25.03 37.20 ● ● ● ● ●          
8-5/8 219.1 0.188 4.8 16.96 25.37 ● ● ● ● ● ● ● ● ● ●
0.203 5.2 18.26 27.43 ● ● ● ● ● ● ● ● ● ●
0.219 5.6 19.66 29.48 ● ● ● ● ● ● ● ● ● ●
0.25 6.4 22.36 33.57 ● ● ● ● ● ● ● ● ● ●
0.277 7.0 24.70 36.61 ● ● ● ● ● ● ● ● ● ●
0.312 7.9 27.70 41.14 ● ● ● ● ● ● ● ● ●  
0.322 8.2 28.55 42.65 ● ● ● ● ● ● ● ● ●  
0.344 8.7 30.42 45.14 ● ● ● ● ● ● ● ●    
0.375 9.5 33.04 49.10 ● ● ● ● ● ●        
0.438 11.1 38.30 56.94 ● ● ● ● ●          
0.5 12.7 43.43 64.64 ● ● ● ●            
0.531 13.5 46.00 68.45 ● ● ● ●            
10-3/4 273.1 0.203 5.2 22.89 34.36 ● ● ● ● ● ● ● ● ● ●
0.219 5.6 24.63 36.94 ● ● ● ● ● ● ● ● ● ●
0.25 6.4 28.04 42.09 ● ● ● ● ● ● ● ● ● ●
0.279 7.1 31.20 46.57 ● ● ● ● ● ● ● ● ● ●
0.307 7.8 34.24 51.03 ● ● ● ● ● ● ● ● ●  
0.344 8.7 38.23 56.72 ● ● ● ● ● ● ● ●    
0.365 9.3 40.48 60.50 ● ● ● ● ● ●        
0.438 11.1 48.24 71.72 ● ● ● ● ●          
0.5 12.7 54.79 81.55 ● ● ● ● ●          
0.531 13.5 58.08 86.42 ● ● ● ●            
0.543 13.8 59.30 88.24 ● ● ● ●            

 

Line Pipe Size,Unit weight API SPEC 5L,GB/T9711,GOST 20295
OD WT Unit weight Steel Grade
in. mm in. mm Ib/ft kg/m A25 A B X42 X46 X52 X56 X60 X65 X70
L175 L210 L245 L290 L320 L360 L390 L415 L450 L485
12-3/4 323.9 0.219 5.6 29.34 43.96 ● ● ● ● ● ● ● ● ● ●
0.25 6.4 33.38 50.11 ● ● ● ● ● ● ● ● ● ●
0.278 7.1 37.42 55.47 ● ● ● ● ● ● ● ● ● ●
0.312 7.9 41.45 61.56 ● ● ● ● ● ● ● ● ●  
0.33 8.4 43.77 65.35 ● ● ● ● ● ● ● ● ●  
0.344 8.7 45.58 67.62 ● ● ● ● ● ● ● ● ●  
0.375 9.5 49.56 73.65 ● ● ● ● ● ● ●      
0.406 10.3 53.52 79.65 ● ● ● ● ● ●        
0.438 11.1 57.59 85.62 ● ● ● ● ● ●        
0.5 12.7 65.48 97.49 ● ● ● ● ●          
0.531 13.5 36.91 54.92 ● ● ● ●            
0.543 13.8 38.53 57.33 ● ● ● ●            
0.551 14.0 39.63 58.97 ● ● ● ●            
14 355.6 0.25 6.35 36.75 55.11 ● ● ● ● ● ● ● ● ● ●
0.281 7.1 41.21 61.02 ● ● ● ● ● ● ● ● ● ●
0.312 7.9 45.65 67.74 ● ● ● ● ● ● ● ● ● ●
0.344 8.7 50.22 74.42 ● ● ● ● ● ● ● ● ●  
0.375 9.5 54.62 81.18 ● ● ● ● ● ● ● ● ●  
0.406 10.3 59.00 87.71 ● ● ● ● ● ●        
0.438 11.1 63.50 94.30 ● ● ● ● ●          
0.469 11.9 67.84 100.82 ● ● ● ● ●          
0.5 12.7 72.16 107.24 ● ● ● ● ●          
0.531 13.5 40.68 60.53 ● ● ● ●            
0.543 13.8 42.47 63.20 ● ● ● ●            
0.551 14.0 43.68 65.00 ● ● ● ●            
16 406.4 0.219 5.6 36.95 55.35 ● ● ● ● ● ● ● ● ● ●
0.25 6.4 42.09 63.13 ● ● ● ● ● ● ● ● ● ●
0.281 7.1 47.22 69.92 ● ● ● ● ● ● ● ● ● ●
0.312 7.9 52.53 77.64 ● ● ● ● ● ● ● ● ● ●
0.344 8.7 57.57 85.33 ● ● ● ● ● ● ● ● ● ●
0.375 9.5 62.64 92.99 ● ● ● ● ● ● ● ● ●  
0.406 10.3 67.68 100.61 ● ● ● ● ● ● ● ●    
0.438 11.1 72.86 108.21 ● ● ● ● ● ● ●      
0.469 11.9 77.87 115.77 ● ● ● ● ● ●        
0.5 12.7 82.8 123.31 ● ● ● ● ●          
0.531 13.5 46.72 69.52 ● ● ● ●            
0.543 13.8 48.78 72.59 ● ● ● ●            
0.551 14.0 50.18 74.67 ● ● ● ●            

Send Inquiry

Categories

Latest Products

Contact Us

  • Mobile: +86-15824687445
  • Email: pipes@gneetube.com
  • Whatsapp/Wechat: +86 15824687445
  • Add: 25th Floor, Huafu Commercial Center, Anyang, Henan Province, China

whatsapp

Phone

E-mail

Inquiry