Maximum Working Pressure Tables – Alloy C276 Seamless Tube (Nickel, Molybdenum, Chromium / ASTM B-622 or Equivalent)

Maximum Allowable Working Pressure (PSI) For Fractional Sizes

Tubing OD Wall Thickness (Inches)
.010 .012 .016 .020 .028 .035 .049 .065 .083 .095 .109 .120
1/16 9,175 11,245 15,382 19,262
1/8 9,175 13,322 16,890
3/16 5,830 8,480 10,900 15,722
1/4 6,150 7,882 11,505 15,637
3/8 5,042 7,295 10,042
1/2 3,707 5,317 7,255 9,570
5/8 2,932 4,182 5,672 7,430 8,652
3/4 2,425 3,447 4,655 6,070 7,047 8,222 9,175
7/8 2,065 2,932 3,950 5,132 5,945 6,917 7,702
1 1,800 2,550 3,427 4,445 5,140 5,970 6,637

Factor of Saftey = 4, considering tensile strength to be 100,000 psi at room temperature.

 

Maximum Allowable Working Pressure (Bar) For Metric Sizes

Tubing OD Wall Thickness (Millimeters)
.5 .6 .7 .8 1.0 1.2 1.5 1.6 1.8 2.0 2.2 2.5 3.0
3 663 811 960 1107 1379
4 1915 2350 2810 3245 4135 4990
6 1775 2060 2650 3245 4135 4430
8 1295 1500 1915 2350 3020 3245
10 1180 1500 1830 2350 2530
12 970 1230 1500 1915 2060 2350 2650
14 1045 1270 1615 1775 1975 2225 2480 2865 3500
16 910 1100 1395 1500 1705 1915 2130 2465 3020
18 800 970 1230 1320 1500 1680 1870 2155 2650
22 650 790 995 1065 1210 1350 1540 1725 2110
25 570 690 870 930 1050 1180 1305 1500 1830

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