Bursting Pressure Tables – Alloy C276 Welded Tube (Nickel, Molybdenum, Chromium / ASTM B-626 or Equivalent)

Calculated Burst Pressure (PSI) For Fractional Sizes

Tubing OD Wall Thickness (Inches)
.010 .012 .016 .020 .028 .035 .049 .065 .083 .095 .109 .120
1/16 36,700 44,975 61,530 77,045
1/8 36,700 53,290 67,560
3/16 23,320 33,920 43,600 62,890
1/4 24,600 31,530 46,020 62,550
3/8 20,170 29,180 40,170
1/2 14,830 21,270 29,020 38,280
5/8 11,730 16,730 22,690 29,720 34,610
3/4 9,700 13,790 18,620 24,280 28,190 32,900 36,700
7/8 8,260 11,730 15,800 20,530 23,780 27,670 30,810
1 7,200 10,200 13,710 17,780 20,560 23,880 26,550

Calculated Burst Pressure (Bar) For Metric Sizes

Tubing OD Wall Thickness (Inches)
.5 .6 .7 .8 1.0 1.2 1.5 1.6 1.8 2.0 2.2 2.5 3.0
3 2650 3245 3840 4430 5515
4 1915 2350 2810 3245 4135 4990
6 1775 2055 2650 3245 4135 4430
8 1295 1500 1915 2350 3025 3245
10 1180 1500 1830 2350 2530
12 970 1230 1500 1915 2055 2350 2650
14 1040 1270 1620 1735 1975 2225 2475 2865 3500
16 905 1100 1395 1500 1705 1915 2130 2460 3025
18 800 970 1230 1320 1500 1685 1870 2155 2650
22 650 790 995 1065 1210 1355 1500 1720 2110
25 570 690 870 930 1050 1180 1305 1500 1830

References: ASME Boiler and Pressure Vessel Code, Section VIII, Div. 1, Table UNF-23-3, Par. UG-27 and Appendix 1, Par. 1-2
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