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Alloy C276 Seamless Tube Maximum Working Pressure Table
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 |
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| 1/8 |
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9,175 |
13,322 |
16,890 |
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| 3/16 |
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5,830 |
8,480 |
10,900 |
15,722 |
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| 1/4 |
|
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6,150 |
7,882 |
11,505 |
15,637 |
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| 3/8 |
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5,042 |
7,295 |
10,042 |
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| 1/2 |
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3,707 |
5,317 |
7,255 |
9,570 |
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| 5/8 |
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2,932 |
4,182 |
5,672 |
7,430 |
8,652 |
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| 3/4 |
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2,425 |
3,447 |
4,655 |
6,070 |
7,047 |
8,222 |
9,175 |
| 7/8 |
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2,065 |
2,932 |
3,950 |
5,132 |
5,945 |
6,917 |
7,702 |
| 1 |
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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
| Tubes 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 |
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| 4 |
1915 |
2350 |
2810 |
3245 |
4135 |
4990 |
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| 6 |
|
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1775 |
2060 |
2650 |
3245 |
4135 |
4430 |
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| 8 |
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1295 |
1500 |
1915 |
2350 |
3020 |
3245 |
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| 10 |
|
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1180 |
1500 |
1830 |
2350 |
2530 |
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| 12 |
|
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|
970 |
1230 |
1500 |
1915 |
2060 |
2350 |
2650 |
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| 14 |
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1045 |
1270 |
1615 |
1775 |
1975 |
2225 |
2480 |
2865 |
3500 |
| 16 |
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910 |
1100 |
1395 |
1500 |
1705 |
1915 |
2130 |
2465 |
3020 |
| 18 |
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800 |
970 |
1230 |
1320 |
1500 |
1680 |
1870 |
2155 |
2650 |
| 22 |
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650 |
790 |
995 |
1065 |
1210 |
1350 |
1540 |
1725 |
2110 |
| 25 |
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570 |
690 |
870 |
930 |
1050 |
1180 |
1305 |
1500 |
1830 |
Information for reference purposes only.
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