Pressure Conversion Converter Calculator
Pressure measurement unit converter:bar (bar), KPa (KPa), HPa (hPa), millibar (mbar), Pascal, standard atmospheric pressure (atm), millimeters of mercury (mmHg), lbf square feet, inches, mm water column, kilograms of force, measured as units of square centimeters
ASTM A312 Stainless Steel Pipe Theoretical Bursting and Collapsing Pressures for Pipe
Nominal
Size
Inches |
Schedule
Number |
Outside
Diameter
Inches |
Wall
Thickness
Inches |
Inside
Diameter
Inches |
Internal
Pressure
PSI
Bursting |
External
Pressure
PSI
Collapsing |
| 1/8
|
10 |
0.405 |
0.049 |
0.307 |
18,150 |
7,468 |
| 40 |
0.405 |
0.068 |
0.269 |
25,195 |
10,761 |
| 80 |
0.405 |
0.095 |
0.215 |
35,185 |
15,441 |
| 1/4
|
10 |
0.540 |
0.065 |
0.410 |
18,055 |
7,425 |
| 40 |
0.540 |
0.088 |
0.364 |
24,444 |
10,415 |
| 80 |
0.540 |
0.119 |
0.302 |
33,055 |
14,445 |
| 3/8
|
10 |
0.678 |
0.065 |
0.545 |
14,380 |
5,705 |
| 40 |
0.678 |
0.091 |
0.493 |
20,132 |
8,397 |
| 80 |
0.678 |
0.126 |
0.423 |
27,876 |
12,021 |
| 1/2
|
5 |
0.840 |
0.065 |
0.710 |
11,607 |
4,407 |
| 10 |
0.840 |
0.083 |
0.674 |
14,821 |
5,911 |
| 40 |
0.840 |
0.109 |
0.622 |
19,464 |
8,084 |
| 80 |
0.840 |
0.147 |
0.546 |
26,250 |
11,260 |
| 3/4
|
5 |
1.050 |
0.065 |
0.920 |
9,285 |
3,295 |
| 10 |
1.050 |
0.083 |
0.884 |
11,857 |
4,524 |
| 40 |
1.050 |
0.113 |
0.824 |
16,142 |
6,529 |
| 80 |
1.050 |
0.154 |
0.742 |
22,000 |
9,271 |
| 1
|
5 |
1.315 |
0.065 |
1.185 |
7,414 |
2,445 |
| 10 |
1.315 |
0.109 |
1.097 |
12,433 |
3,795 |
| 40 |
1.315 |
0.133 |
1.049 |
15,171 |
6,075 |
| 80 |
1.315 |
0.179 |
0.957 |
20,418 |
8,530 |
| 1-1/4
|
5 |
1.660 |
0.065 |
1.530 |
5,873 |
1,725 |
| 10 |
1.660 |
0.109 |
1.442 |
9,849 |
3,585 |
| 40 |
1.660 |
0.140 |
1.380 |
12,650 |
3,895 |
| 80 |
1.660 |
0.191 |
1.278 |
17,259 |
7,052 |
| 1-1/2
|
5 |
1.900 |
0.065 |
1.770 |
5,131 |
1,376 |
| 10 |
1.900 |
0.109 |
1.682 |
8,605 |
3,002 |
| 40 |
1.900 |
0.145 |
1.610 |
11,447 |
4,332 |
| 80 |
1.900 |
0.200 |
1.500 |
15,789 |
6,364 |
| 2
|
5 |
2.375 |
0.065 |
2.245 |
4,105 |
896 |
| 10 |
2.375 |
0.109 |
2.157 |
6,884 |
2,196 |
| 40 |
2.375 |
0.154 |
2.067 |
9,726 |
3,526 |
| 80 |
2.375 |
0.218 |
1.939 |
13,768 |
5,418 |
| 2-1/2
|
5 |
2.875 |
0.083 |
2.709 |
4,330 |
1,001 |
| 10 |
2.875 |
0.120 |
2.635 |
6,260 |
1,905 |
| 40 |
2.875 |
0.203 |
2.469 |
10,591 |
3,931 |
| 3
|
5 |
3.500 |
0.083 |
3.334 |
3,557 |
639 |
| 10 |
3.500 |
0.120 |
3.260 |
5,142 |
1,375 |
| 40 |
3.500 |
0.216 |
3.068 |
9,257 |
3,307 |
| 3-1/2
|
5 |
4.000 |
0.083 |
3.834 |
3,112 |
431 |
| 10 |
4.000 |
0.120 |
3.760 |
4,500 |
1,081 |
| 4
|
5 |
4.500 |
0.083 |
4.334 |
2,766 |
315 |
| 10 |
4.500 |
0.120 |
4.260 |
4,000 |
845 |
| 40 |
4.500 |
0.237 |
5.345 |
7,900 |
2,672 |
| 5
|
5 |
5.563 |
0.109 |
5.295 |
2,949 |
350 |
| 10 |
5.563 |
0.134 |
6.407 |
3,613 |
665 |
| 6
|
5 |
6.625 |
0.109 |
6.357
|
2,467 |
129 |
| 10 |
6.625 |
0.134 |
3,033 |
394 |
| NOTE: To compute safe working pressures, above burst pressures should be divided by your desired safety factor. |
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