TUBING O.D. (IN.) TUBE WALL THICKNESS (INCHES)
.035″ .049″ .058″ .065″ .083″ .095″ .109″ .120″
1/8″ WORKING PRESURE *(PSIG)
3/16″ 4,412 5,966
1/4″ 2,992 4,408 5,405
5/16″ 2,327 3,401 4,132
3/8″ 1,909 2,764 3,353
1/2″ 1,406 2,014 2,422 2,755
5/8″ 1,111 1,586 1,900 2,147
3/4″ 1,301 1,558 1,767 2,299
7/8″ 1,111 1,320 1,491
1″ 959 1,149 1,301 1,681 1,947
Minimum ultimate tensile strength 38,000 p.s.i. For metal temperatures not to exceed -20 to 100°F. Allowable working pressure loads calculated form S values as specified by Table 302.3.1 and Paragraph 304.1.2 of Code for Pressure Piping ANSI B31.3.

 

TUBING O.D. (IN.) TUBE WALL THICKNESS (INCHES)
.035″ .049″ .058″ .065″ .083″ .095″ .109″ .120″
1/8″ WORKING PRESURE *(PSIG)
3/16″ 4,412 5,966
1/4″ 2,992 4,408 5,405
5/16″ 2,327 3,401 4,132
3/8″ 1,909 2,764 3,353
1/2″ 1,406 2,014 2,422 2,755
5/8″ 1,111 1,586 1,900 2,147
3/4″ 1,301 1,558 1,767 2,299
7/8″ 1,111 1,320 1,491
1″ 959 1,149 1,301 1,681 1,947
Minimum ultimate tensile strength 38,000 p.s.i. For metal temperatures not to exceed -20 to 100°F. Allowable working pressure loads calculated form S values as specified by Table 302.3.1 and Paragraph 304.1.2 of Code for Pressure Piping ANSI B31.3.

 

TUBING O.D. (IN.) TUBE WALL THICKNESS (INCHES)
.028″ .035″ .049″ .065″ .083″ .095″ .109″ .120″ .134″ .148″ .165″ .180″ .220″
1/8″ 8,341 10,579 WORKING PRESURE *(PSIG)
3/16″ 5,305 6,823 9,828
1/4″ 3,818 4,929 7,261 9,781
5/16″ 3,834 5,602 7,699
3/8″ 3,145 4,554 6,291
1/2″ 2,316 3,317 4,538 5,978
5/8″ 1,831 2,613 3,536 4,632 5,414
3/4″ 2,144 2,910 3,787 4,397 5,133
7/8″ 1,831 2,457 3,208 3,709 4,319
1″ 1,580 2,144 2,770 3,208 3,724 4,417
1-1/4″ 1,698 2,195 2,533 2,934 3,255 3,670 4,094 4,619 5,094
1-1/2″ 1,812 2,088 2,415 2,675 3,011 3,353 3,775 4,155 5,201
2″ 1,545 1,784 1,973 2,216 2,462 2,765 3,306 3,775
Soft annealed carbon steel hydraulic tubing ASTM A179 or equivalent. Minimum ultimate tensile strength 47,000 p.s.i. For metal temperatures not to exceed -20 to 100°F. Allowable working pressure loads calculated form S values as specified by Table 302.3.1 and Paragraph 304.1.2 of Code for Pressure Piping ANSI B31.3.Note: Carbon and Electro Galvanized Carbon