Pressure Rating for standard seamless stainless steel pipe
Pressure Rating for standard stainless steel pipe, temperature from 100°F to 750°F. All ratings in psig based on ANSI/ASME B31.1.The operating (allowable) internal pressure of a vessel, tank, or piping used to hold or transport liquids or gases.The pressure ratings of pipes, valves, etc. must be matched throughout a hydraulic system in order for the system to function.
For example, if a hydraulic system was rated at 2,000 PSI, you should not install a valve rated at 125 PSI. The pressure of the water will quickly cause the valve to fail since its pressure rating is too low.
| Pressure Rating (psig) |
Pipe Size
(inches) |
Pipe Schedule |
Temperature (°F) |
| 100 |
200 |
300 |
400 |
500 |
600 |
650 |
700 |
750 |
| 1" |
40 |
3048 |
2629 |
2362 |
2171 |
2019 |
1924 |
1867 |
1824 |
1810 |
| 1" |
80 |
4213 |
3634 |
3265 |
3002 |
2791 |
2659 |
2580 |
2528 |
2501 |
| 1" |
160 |
6140 |
5296 |
4759 |
4375 |
4068 |
3876 |
3761 |
3684 |
3646 |
| 1.5" |
40 |
2257 |
1947 |
1750 |
1608 |
1496 |
1425 |
1383 |
1354 |
1340 |
| 1.5" |
80 |
3182 |
2744 |
2466 |
2267 |
2108 |
2009 |
1949 |
1909 |
1889 |
| 1.5" |
160 |
4619 |
3984 |
3580 |
3291 |
3060 |
2916 |
2829 |
2772 |
2743 |
| 2" |
40 |
1902 |
1640 |
1474 |
1355 |
1260 |
1201 |
1165 |
1141 |
1129 |
| 2" |
80 |
2747 |
2369 |
2129 |
1957 |
1820 |
1734 |
1682 |
1648 |
1631 |
| 2" |
160 |
4499 |
3880 |
3486 |
3205 |
2980 |
2840 |
2755 |
2699 |
2671 |
| 3" |
40 |
1806 |
1558 |
1400 |
1287 |
1196 |
1140 |
1106 |
1084 |
1072 |
| 3" |
80 |
2553 |
2202 |
1979 |
1819 |
1691 |
1612 |
1564 |
1532 |
1516 |
| 3" |
160 |
3840 |
3312 |
2976 |
2736 |
2544 |
2424 |
2352 |
2304 |
2280 |
| 4" |
40 |
1531 |
1321 |
1187 |
1091 |
1014 |
967 |
938 |
919 |
909 |
| 4" |
80 |
2213 |
1909 |
1715 |
1577 |
1466 |
1397 |
1355 |
1328 |
1314 |
| 4" |
160 |
3601 |
3106 |
2791 |
2566 |
2386 |
2273 |
2206 |
2161 |
2138 |
| 5" |
40 |
1342 |
1158 |
1040 |
956 |
889 |
847 |
822 |
805 |
797 |
| 5" |
80 |
1981 |
1709 |
1535 |
1411 |
1312 |
1250 |
1213 |
1189 |
1176 |
| 5" |
160 |
3414 |
2945 |
2646 |
2433 |
2262 |
2155 |
2091 |
2049 |
2027 |
| 6" |
40 |
1219 |
1052 |
945 |
869 |
808 |
770 |
747 |
732 |
724 |
| 6" |
80 |
1913 |
1650 |
1483 |
1363 |
1267 |
1208 |
1172 |
1148 |
1136 |
| 6" |
160 |
3289 |
2836 |
2549 |
2343 |
2179 |
2076 |
2014 |
1973 |
1953 |
| 8" |
40 |
1073 |
926 |
832 |
765 |
711 |
678 |
657 |
644 |
637 |
| 8" |
80 |
1692 |
1459 |
1311 |
1205 |
1121 |
1068 |
1036 |
1015 |
1005 |
| 8" |
160 |
3175 |
2738 |
2460 |
2262 |
2103 |
2004 |
1944 |
1905 |
1885 |
| 10" |
40 |
974 |
840 |
755 |
694 |
945 |
615 |
596 |
584 |
578 |
| 10" |
80 |
1609 |
1388 |
1247 |
1147 |
1066 |
1016 |
986 |
966 |
956 |
| 10" |
160 |
3147 |
2714 |
2439 |
2242 |
2085 |
1986 |
1927 |
1880 |
1868 |
The outside housing of most pipes have pressure ratings listed. Pipes made from different materials will have different pressure ratings. The rating of copper tubing is 700 PSI. Schedule 40 steel has a rating of 2,000 PSI. The higher rating of the steel pipe means that the pipe is stronger. Of course, factors other than pressure ratings have to be taken into account when choosing piping. For example, though steel pipe is strong, it is not widely used because it is labor intensive and highly corrosive. In contrast, copper pipe is toxic to living organisms and has been known to keep the water flowing through it fresh for over two thousand years.
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. |
Releated Reference
Under Pressure Pressure Rating
Pressure Rating ANSI Class vs Nominal Pressure PN
Pipe Working Pressure Calculation Calculator
Conversion Calculator Calculation-Pressure|Weight|Temperature|Volume|Length
Pipe Plate Bar Square Pipes Weight Calculation Tool
Metals Weight Calculator
Pressure Ratings for standard seamless stainless steel pipes
Bursting Internal Pressure Collapsing External Pressure values of ASTM A312
Internal Pressure Calculation
Flow Capacity, ANSI Schedule 40 Pipe
Steel Pipe (Low Carbon) Burst Pressures
Brinell and Rockwell Hardness Conversion Chart
Maximum Working Pressure-ASTM A53 B Carbon Steel Pipes
Pressure and Temperature Ratings of ASTM A106 Grade B Carbon Steel Pipes
Stainless Steel Tube Dimension
Stainless Steel Tube Guage
ANSI Standard Pipe Chart
Millimeters Inches Conversion Chart
Conversion Table of Temperatue, Length,Mass,Pressure
NPS-Nominal-Pipe-Size
NPS-Nominal-Pipe-Size and DN - Diametre Nominal
Pipe Schedule
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