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Alloy 400 Seamless Tube Maximum Working Pressure Table
Nickel, Copper / ASTM B-165 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 |
6,422 |
7,872 |
10,768 |
13,484 |
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| 1/8 |
|
|
|
6,422 |
9,325 |
11,823 |
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|
| 3/16 |
|
|
|
4,081 |
5,935 |
7,630 |
11,005 |
|
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|
| 1/4 |
|
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|
|
4,305 |
5,518 |
8,053 |
10,946 |
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|
| 3/8 |
|
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|
|
3,530 |
5,107 |
7,029 |
|
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| 1/2 |
|
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2,595 |
3,721 |
5,078 |
6,699 |
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| 5/8 |
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2,051 |
2,927 |
3,970 |
5,200 |
6,056 |
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| 3/4 |
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1,696 |
2,412 |
3,259 |
4,249 |
4,933 |
5,755 |
6,422 |
| 7/8 |
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1,446 |
2,051 |
2,764 |
3,592 |
4,161 |
4,842 |
5,391 |
| 1 |
|
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5,040 |
7,140 |
9,595 |
12,445 |
14,390 |
16,715 |
18,585 |
Factor of Safety = 4, considering tensile strength to be 70,000 PSI at room temperature.
Maximum Allowable Working Pressure (Bar) For Metric Sizes
| Tubing OD |
Wall Thickness (Inches) |
| 0.5 |
0.6 |
0.7 |
0.8 |
1.0 |
1.2 |
1.5 |
1.6 |
1.8 |
2.0 |
2.2 |
2.5 |
3.0 |
| 3 |
464 |
567 |
672 |
775 |
965 |
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| 4 |
335 |
411 |
491 |
567 |
723 |
873 |
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| 6 |
|
|
310 |
360 |
464 |
567 |
723 |
775 |
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| 8 |
|
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227 |
262 |
335 |
411 |
528 |
567 |
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| 10 |
|
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206 |
262 |
320 |
411 |
442 |
|
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| 12 |
|
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|
169 |
215 |
262 |
335 |
360 |
411 |
464 |
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| 14 |
|
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|
182 |
222 |
282 |
303 |
345 |
389 |
433 |
500 |
612 |
| 16 |
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158 |
192 |
244 |
262 |
298 |
335 |
372 |
430 |
528 |
| 18 |
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140 |
169 |
215 |
230 |
262 |
294 |
326 |
377 |
464 |
| 22 |
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|
113 |
137 |
173 |
186 |
211 |
236 |
262 |
301 |
369 |
| 25 |
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99 |
120 |
152 |
162 |
184 |
206 |
228 |
262 |
320 |
Factor of Safety = 4, considering tensile strength to be 482.6 MPa at room temperature.
Information for reference purposes only.
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