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Maximum Working Pressure Tables - Alloy 400 Annealed Seamless Tube
(Nickel, Copper / ASTM B-165 or Equivalent)

Maximum Allowable Working Pressure (PSI) For Fractional Sizes

Tubing ODWall Thickness (Inches)
.010.012.016.020.028.035.049.065.083.095.109.120
1/166,4227,87210,76813,484        
1/8   6,4229,32511,823      
3/16   4,0815,9357,63011,005     
1/4    4,3055,5188,05310,946    
3/8     3,5305,1077,029    
1/2     2,5953,7215,0786,699   
5/8     2,0512,9273,9705,2006,056  
3/4     1,6962,4123,2594,2494,9335,7556,422
7/8     1,4462,0512,7643,5924,1614,8425,391
1     5,0407,1409,59512,44514,39016,71518,585
Factor of Safety = 4, considering tensile strength to be 70,000 PSI at room temperature.

Maximum Allowable Working Pressure (Bar) For Metric Sizes

Tubing ODWall Thickness (Inches)
0.50.60.70.81.01.21.51.61.82.02.22.53.0
3464567672775965        
4335411491567723873       
6  310360464567723775     
8  227262335411528567     
10   206262320411442     
12   169215262335360411464   
14    182222282303345389433500612
16    158192244262298335372430528
18    140169215230262294326377464
22    113137173186211236262301369
25    99120152162184206228262320
Factor of Safety = 4, considering tensile strength to be 482.6 MPa at room temperature.

Information for reference purposes only. Corrosion Materials in not liable for any damages that may result from the use of this information.