ASTM A312 PIPE PRESSURE RATINGS
NPS Oustide Diameter | Sched | Actual O.D. (in) | Nom. Wall (in) | MYS (PSI) | MTS (PSI) | Theoretical Burst Pressure * (PSI) | Working Pressure (PSI) 25% of Burst | Theoretical Yield Point ** (PSI) | Collapse Pressure *** (PSI) |
1/8" | 10 | 0.405 | 0.049 | 30,000 | 75,000 | 18,148 | 4,537 | 7,259 | 6,381 |
1/8" | 40 | 0.405 | 0.068 | 30,000 | 75,000 | 25,185 | 6,296 | 10,074 | 8,383 |
1/8" | 80 | 0.405 | 0.095 | 30,000 | 75,000 | 35,185 | 8,796 | 14,074 | 10,773 |
1/4" | 10 | 0.540 | 0.065 | 30,000 | 75,000 | 18,056 | 4,514 | 7,222 | 6,353 |
1/4" | 40 | 0.540 | 0.088 | 30,000 | 75,000 | 24,444 | 6,111 | 9,778 | 8,184 |
1/4" | 80 | 0.540 | 0.119 | 30,000 | 75,000 | 33,056 | 8,264 | 13,222 | 10,308 |
3/8" | 10 | 0.678 | 0.065 | 30,000 | 75,000 | 14,381 | 3,595 | 5,752 | 5,201 |
3/8" | 40 | 0.678 | 0.091 | 30,000 | 75,000 | 20,133 | 5,033 | 8,053 | 6,972 |
3/8" | 80 | 0.678 | 0.126 | 30,000 | 75,000 | 27,876 | 6,969 | 11,150 | 9,078 |
1/2" | 5 | 0.840 | 0.065 | 30,000 | 75,000 | 11,607 | 2,902 | 4,643 | 4,284 |
1/2" | 10 | 0.840 | 0.083 | 30,000 | 75,000 | 14,821 | 3,705 | 5,929 | 5,343 |
1/2" | 40 | 0.840 | 0.109 | 30,000 | 75,000 | 19,464 | 4,866 | 7,786 | 6,775 |
1/2" | 80 | 0.840 | 0.147 | 30,000 | 75,000 | 26,250 | 6,563 | 10,500 | 8,663 |
3/4" | 5 | 1.050 | 0.065 | 30,000 | 75,000 | 9,286 | 2,321 | 3,714 | 3,484 |
3/4" | 10 | 1.050 | 0.083 | 30,000 | 75,000 | 11,857 | 2,964 | 4,743 | 4,368 |
3/4" | 40 | 1.050 | 0.113 | 30,000 | 75,000 | 16,143 | 4,036 | 6,457 | 5,762 |
3/4" | 80 | 1.050 | 0.154 | 30,000 | 75,000 | 22,000 | 5,500 | 8,800 | 7,509 |
1" | 5 | 1.315 | 0.065 | 30,000 | 75,000 | 7,414 | 1,854 | 2,966 | 2,819 |
1" | 10 | 1.315 | 0.109 | 30,000 | 75,000 | 12,433 | 3,108 | 4,973 | 4,561 |
1" | 40 | 1.315 | 0.133 | 30,000 | 75,000 | 15,171 | 3,793 | 6,068 | 5,455 |
1" | 80 | 1.315 | 0.179 | 30,000 | 75,000 | 20,418 | 5,105 | 8,167 | 7,056 |
1 1/4" | 5 | 1.660 | 0.065 | 30,000 | 75,000 | 5,873 | 1,468 | 2,349 | 2,257 |
1 1/4" | 10 | 1.660 | 0.109 | 30,000 | 75,000 | 9,849 | 2,462 | 3,940 | 3,681 |
1 1/4" | 40 | 1.660 | 0.14 | 30,000 | 75,000 | 12,651 | 3,163 | 5,060 | 4,633 |
1 1/4" | 80 | 1.660 | 0.191 | 30,000 | 75,000 | 17,259 | 4,315 | 6,904 | 6,109 |
1 1/2" | 5 | 1.900 | 0.065 | 30,000 | 75,000 | 5,132 | 1,283 | 2,053 | 1,982 |
1 1/2" | 10 | 1.900 | 0.109 | 30,000 | 75,000 | 8,605 | 2,151 | 3,442 | 3,245 |
1 1/2" | 40 | 1.900 | 0.145 | 30,000 | 75,000 | 11,447 | 2,862 | 4,579 | 4,230 |
1 1/2" | 80 | 1.900 | 0.2 | 30,000 | 75,000 | 15,789 | 3,947 | 6,316 | 5,651 |
2" | 5 | 2.375 | 0.065 | 30,000 | 75,000 | 4,105 | 1,026 | 1,642 | 1,597 |
2" | 10 | 2.375 | 0.109 | 30,000 | 75,000 | 6,884 | 1,721 | 2,754 | 2,627 |
2" | 40 | 2.375 | 0.154 | 30,000 | 75,000 | 9,726 | 2,432 | 3,891 | 3,638 |
2" | 80 | 2.375 | 0.218 | 30,000 | 75,000 | 13,768 | 3,442 | 5,507 | 5,002 |
TUBE PRESSURE RATINGS FOR ASTM - A269-A249 - 304L-316L
OD inches | Ave. Wall inches | Min Yield Strength (PSI) | Min Tensile Strength (PSI) | Theoretical Burst Pressure * (PSI) | Working Pressure (PSI) 25% of Burst | Theoretical Yield Point ** (PSI) | Collapse Pressure *** (PSI) |
0.25 | 0.020 | 30,000 | 75,000 | 14,286 | 3,571 | 5,714 | 4,416 |
0.25 | 0.028 | 30,000 | 75,000 | 21,649 | 5,412 | 8,660 | 5,967 |
0.25 | 0.035 | 30,000 | 75,000 | 29,167 | 7,292 | 11,667 | 7,224 |
0.25 | 0.049 | 30,000 | 75,000 | 48,355 | 12,089 | 19,342 | 9,455 |
0.25 | 0.065 | 30,000 | 75,000 | 81,250 | 20,313 | 32,500 | 11,544 |
0.375 | 0.020 | 30,000 | 75,000 | 8,955 | 2,239 | 3,582 | 3,029 |
0.375 | 0.028 | 30,000 | 75,000 | 13,166 | 3,292 | 5,266 | 4,145 |
0.375 | 0.035 | 30,000 | 75,000 | 17,213 | 4,303 | 6,885 | 5,077 |
0.375 | 0.049 | 30,000 | 75,000 | 26,534 | 6,634 | 10,614 | 6,816 |
0.375 | 0.065 | 30,000 | 75,000 | 39,796 | 9,949 | 15,918 | 8,597 |
0.5 | 0.020 | 30,000 | 75,000 | 6,522 | 1,630 | 2,609 | 2,304 |
0.5 | 0.028 | 30,000 | 75,000 | 9,459 | 2,365 | 3,784 | 3,172 |
0.5 | 0.035 | 30,000 | 75,000 | 12,209 | 3,052 | 4,884 | 3,906 |
0.5 | 0.049 | 30,000 | 75,000 | 18,284 | 4,571 | 7,313 | 5,304 |
0.5 | 0.065 | 30,000 | 75,000 | 26,351 | 6,588 | 10,541 | 6,786 |
0.5 | 0.083 | 30,000 | 75,000 | 37,275 | 9,319 | 14,910 | 8,307 |
0.625 | 0.020 | 30,000 | 75,000 | 5,128 | 1,282 | 2,051 | 1,859 |
0.625 | 0.028 | 30,000 | 75,000 | 7,381 | 1,845 | 2,953 | 2,568 |
0.625 | 0.035 | 30,000 | 75,000 | 9,459 | 2,365 | 3,784 | 3,172 |
0.625 | 0.049 | 30,000 | 75,000 | 13,947 | 3,487 | 5,579 | 4,335 |
0.625 | 0.065 | 30,000 | 75,000 | 19,697 | 4,924 | 7,879 | 5,591 |
0.625 | 0.083 | 30,000 | 75,000 | 27,124 | 6,781 | 10,850 | 6,910 |
0.625 | 0.095 | 30,000 | 75,000 | 32,759 | 8,190 | 13,103 | 7,734 |
0.625 | 0.109 | 30,000 | 75,000 | 40,172 | 10,043 | 16,069 | 8,639 |
0.75 | 0.028 | 30,000 | 75,000 | 6,052 | 1,513 | 2,421 | 2,156 |
0.75 | 0.035 | 30,000 | 75,000 | 7,721 | 1,930 | 3,088 | 2,669 |
0.75 | 0.049 | 30,000 | 75,000 | 11,273 | 2,818 | 4,509 | 3,664 |
0.75 | 0.065 | 30,000 | 75,000 | 15,726 | 3,931 | 6,290 | 4,749 |
0.75 | 0.083 | 30,000 | 75,000 | 21,318 | 5,330 | 8,527 | 5,905 |
0.75 | 0.095 | 30,000 | 75,000 | 25,446 | 6,362 | 10,179 | 6,637 |
0.75 | 0.109 | 30,000 | 75,000 | 30,733 | 7,683 | 12,293 | 7,453 |
0.75 | 0.120 | 30,000 | 75,000 | 35,294 | 8,824 | 14,118 | 8,064 |
0.875 | 0.020 | 30,000 | 75,000 | 3,593 | 898 | 1,437 | 1,340 |
0.875 | 0.028 | 30,000 | 75,000 | 5,128 | 1,282 | 2,051 | 1,859 |
0.875 | 0.035 | 30,000 | 75,000 | 6,522 | 1,630 | 2,609 | 2,304 |
0.875 | 0.049 | 30,000 | 75,000 | 9,459 | 2,365 | 3,784 | 3,172 |
0.875 | 0.065 | 30,000 | 75,000 | 13,087 | 3,272 | 5,235 | 4,126 |
0.875 | 0.083 | 30,000 | 75,000 | 17,560 | 4,390 | 7,024 | 5,152 |
0.875 | 0.095 | 30,000 | 75,000 | 20,803 | 5,201 | 8,321 | 5,807 |
0.875 | 0.109 | 30,000 | 75,000 | 24,886 | 6,221 | 9,954 | 6,543 |
0.875 | 0.120 | 30,000 | 75,000 | 28,346 | 7,087 | 11,339 | 7,100 |
1 | 0.028 | 30,000 | 75,000 | 4,449 | 1,112 | 1,780 | 1,633 |
1 | 0.035 | 30,000 | 75,000 | 5,645 | 1,411 | 2,258 | 2,027 |
1 | 0.049 | 30,000 | 75,000 | 8,149 | 2,037 | 3,259 | 2,796 |
1 | 0.065 | 30,000 | 75,000 | 11,207 | 2,802 | 4,483 | 3,647 |
1 | 0.083 | 30,000 | 75,000 | 14,928 | 3,732 | 5,971 | 4,567 |
1 | 0.095 | 30,000 | 75,000 | 17,593 | 4,398 | 7,037 | 5,159 |
1 | 0.109 | 30,000 | 75,000 | 20,908 | 5,227 | 8,363 | 5,827 |
1 | 0.120 | 30,000 | 75,000 | 23,684 | 5,921 | 9,474 | 6,336 |
1 | 0.134 | 30,000 | 75,000 | 27,459 | 6,865 | 10,984 | 6,963 |
1.25 | 0.035 | 30,000 | 75,000 | 4,449 | 1,112 | 1,780 | 1,633 |
1.25 | 0.049 | 30,000 | 75,000 | 6,380 | 1,595 | 2,552 | 2,260 |
1.25 | 0.065 | 30,000 | 75,000 | 8,705 | 2,176 | 3,482 | 2,958 |
1.25 | 0.083 | 30,000 | 75,000 | 11,485 | 2,871 | 4,594 | 3,719 |
1.25 | 0.095 | 30,000 | 75,000 | 13,443 | 3,361 | 5,377 | 4,213 |
1.25 | 0.109 | 30,000 | 75,000 | 15,843 | 3,961 | 6,337 | 4,776 |
1.25 | 0.120 | 30,000 | 75,000 | 17,822 | 4,455 | 7,129 | 5,207 |
1.25 | 0.134 | 30,000 | 75,000 | 20,468 | 5,117 | 8,187 | 5,742 |
1.5 | 0.035 | 30,000 | 75,000 | 3,671 | 918 | 1,469 | 1,367 |
1.5 | 0.049 | 30,000 | 75,000 | 5,243 | 1,311 | 2,097 | 1,896 |
1.5 | 0.065 | 30,000 | 75,000 | 7,117 | 1,779 | 2,847 | 2,487 |
1.5 | 0.083 | 30,000 | 75,000 | 9,333 | 2,333 | 3,733 | 3,136 |
1.5 | 0.095 | 30,000 | 75,000 | 10,878 | 2,719 | 4,351 | 3,559 |
1.5 | 0.109 | 30,000 | 75,000 | 12,754 | 3,188 | 5,101 | 4,043 |
1.5 | 0.120 | 30,000 | 75,000 | 14,286 | 3,571 | 5,714 | 4,416 |
1.5 | 0.134 | 30,000 | 75,000 | 16,315 | 4,079 | 6,526 | 4,881 |
1.5 | 0.148 | 30,000 | 75,000 | 18,439 | 4,610 | 7,375 | 5,336 |
1.75 | 0.035 | 30,000 | 75,000 | 3,125 | 781 | 1,250 | 1,176 |
1.75 | 0.049 | 30,000 | 75,000 | 3,864 | 966 | 1,546 | 1,434 |
1.75 | 0.065 | 30,000 | 75,000 | 6,019 | 1,505 | 2,407 | 2,146 |
1.75 | 0.083 | 30,000 | 75,000 | 7,860 | 1,965 | 3,144 | 2,711 |
1.75 | 0.095 | 30,000 | 75,000 | 9,135 | 2,284 | 3,654 | 3,080 |
1.75 | 0.109 | 30,000 | 75,000 | 10,672 | 2,668 | 4,269 | 3,504 |
1.75 | 0.120 | 30,000 | 75,000 | 11,921 | 2,980 | 4,768 | 3,832 |
1.75 | 0.134 | 30,000 | 75,000 | 13,563 | 3,391 | 5,425 | 4,242 |
1.75 | 0.148 | 30,000 | 75,000 | 15,268 | 3,817 | 6,107 | 4,645 |
1.75 | 0.165 | 30,000 | 75,000 | 17,430 | 4,357 | 6,972 | 5,124 |
2 | 0.035 | 30,000 | 75,000 | 2,720 | 680 | 1,088 | 1,032 |
2 | 0.049 | 30,000 | 75,000 | 3,864 | 966 | 1,546 | 1,434 |
2 | 0.065 | 30,000 | 75,000 | 5,214 | 1,303 | 2,086 | 1,887 |
2 | 0.083 | 30,000 | 75,000 | 6,788 | 1,697 | 2,715 | 2,387 |
2 | 0.095 | 30,000 | 75,000 | 7,873 | 1,968 | 3,149 | 2,715 |
2 | 0.109 | 30,000 | 75,000 | 9,175 | 2,294 | 3,670 | 3,092 |
2 | 0.120 | 30,000 | 75,000 | 10,227 | 2,557 | 4,091 | 3,384 |
2 | 0.134 | 30,000 | 75,000 | 11,605 | 2,901 | 4,642 | 3,751 |
2 | 0.148 | 30,000 | 75,000 | 13,028 | 3,257 | 5,211 | 4,111 |
2 | 0.165 | 30,000 | 75,000 | 14,820 | 3,705 | 5,928 | 4,542 |
Rated Internal Working Pressure for Copper Tube: ACR (Air Conditioning and Refrigeration Filed Service)
Tube Size (OD) | S=6000 psi 100 F | S=5100 psi 150 F | S=4900 psi 200F | S=4800 psi 250F | S=4700 psi 300 F | S=4000 psi 350F | S=3000 psi 400F |
0.1250 | 3074 | 2613 | 2510 | 2459 | 2408 | 2049 | 1537 |
0.1875 | 1935 | 1645 | 1581 | 1548 | 1516 | 1290 | 968 |
0.2500 | 1406 | 1195 | 1148 | 1125 | 1102 | 938 | 703 |
0.3125 | 1197 | 1017 | 977 | 957 | 937 | 798 | 598 |
0.3750 | 984 | 836 | 803 | 787 | 770 | 656 | 492 |
0.5000 | 727 | 618 | 594 | 581 | 569 | 485 | 363 |
0.6250 | 618 | 525 | 504 | 494 | 484 | 412 | 309 |
0.7500 | 511 | 435 | 417 | 409 | 400 | 341 | 256 |
0.8750 | 582 | 495 | 475 | 466 | 456 | 388 | 291 |
1.1250 | 494 | 420 | 404 | 395 | 387 | 330 | 247 |
1.3750 | 439 | 373 | 358 | 351 | 344 | 293 | 219 |
1.6250 | 408 | 347 | 334 | 327 | 320 | 272 | 204 |
Pressure Rating for Seamless Stainless Coils ASTM A269 316/316L
OD (Inches) | Ave. Wall (Inches) | Min Yield Strenght (PSI) | Min Tensile Strenght (PSI) | Theroetical Burst Pressure (PSI) |
0.125 | 0.035 | 30,000 | 75,000 | 95,455 |
0.25 | 0.035 | 30,000 | 75,000 | 29,167 |
0.25 | 0.035 | 30,000 | 75,000 | 29,167 |
0.25 | 0.049 | 30,000 | 75,000 | 48,355 |
0.25 | 0.065 | 30,000 | 75,000 | 81,250 |
0.375 | 0.035 | 30,000 | 75,000 | 17,213 |
0.375 | 0.035 | 30,000 | 75,000 | 17,213 |
0.375 | 0.049 | 30,000 | 75,000 | 26,534 |
0.375 | 0.065 | 30,000 | 75,000 | 39,796 |
0.5 | 0.035 | 30,000 | 75,000 | 12,209 |
0.5 | 0.049 | 30,000 | 75,000 | 18,284 |
0.5 | 0.049 | 30,000 | 75,000 | 18,284 |
0.5 | 0.065 | 30,000 | 75,000 | 26,351 |
0.75 | 0.049 | 30,000 | 75,000 | 11,273 |
0.75 | 0.065 | 30,000 | 75,000 | 15,726 |
6mm | 1mm | 30,000 | 75,000 | 37,500 |
8mm | 1mm | 30,000 | 75,000 | 25,000 |
10mm | 1mm | 30,000 | 75,000 | 18,750 |
12mm | 1mm | 30,000 | 75,000 | 15,000 |