TUBING DATA FOR COPPER
TABLE 2: MAXIMUM ALLOWABLE WORKING PRESSURE FOR COPPER TUBING
- Soft annealed seamless copper tubing, ASTM B75 or (Temper O with Max. hardness 60)
- Seamless water tubing type K or type L to ASTM B88 (Temper O with Max. hardness 50)
| Tube Wall Thickness(INCH) | |||||||||||
| Tube O.D. INCH | 0.010 | 0.012 | 0.028 | 0.030 | 0.035 | 0.049 | 0.065 | 0.083 | 0.095 | 0.109 | 0.120 |
| Working Pressure (psig) | |||||||||||
| 1/16″ | 1650 | 2100 | 6700 | 9800 | |||||||
| 1/8″ | 2800 | 3000 | 3600 | ||||||||
| 3/16″ | 1800 | 1900 | 2300 | 3400 | |||||||
| 1/4″ | 1300 | 1400 | 1600 | 2500 | 3600 | ||||||
| 5/16″ | 1300 | 1900 | 2700 | ||||||||
| 3/8″ | 1000 | 1600 | 2200 | ||||||||
| 1/2″ | 800 | 1100 | 1600 | 2100 | |||||||
| 5/8″ | 900 | 1200 | 1600 | 1900 | |||||||
| 3/4″ | 700 | 1000 | 1300 | 1500 | 1800 | ||||||
| 7/8″ | 600 | 800 | 1100 | 1300 | 1500 | ||||||
| 1″ | 500 | 700 | 900 | 1100 | 1300 | 1500 | |||||
| Tube Wall Thickness (mm | ||||||||||
| Tube O.D. MM | 0.8 | 1.0 | 1.2 | 1.5 | 1.8 | 2.0 | 2.2 | 2.5 | 2.8 | 3.0 |
| Working Pressure (psig) | ||||||||||
| 3 | 3300 | 4640 | ||||||||
| 4 | 2465 | 3190 | 4200 | |||||||
| 6 | 1595 | 2030 | 2465 | 3190 | 4200 | |||||
| 8 | 1100 | 1450 | 1740 | 2320 | 2900 | |||||
| 10 | 900 | 1160 | 1450 | 1885 | 2300 | 2600 | ||||
| 12 | 750 | 870 | 1160 | 1450 | 1885 | 2030 | ||||
| 14 | 725 | 870 | 1305 | 1595 | 1740 | 1885 | 2300 | |||
| 15 | 870 | 1160 | 1450 | 1595 | 1740 | 2100 | ||||
| 16 | 1015 | 1305 | 1450 | 1595 | 1740 | |||||
| 18 | 870 | 1160 | 1305 | 1450 | 1595 | 1885 | 2100 | |||
| 20 | 870 | 1015 | 1160 | 1305 | 1450 | 1595 | 1885 | |||
| 22 | 725 | 870 | 1015 | 1160 | 1305 | 1450 | 1740 | |||
| 25 | 580 | 725 | 870 | 1015 | 1160 | 1305 | 1450 | |||
| 28 | 580 | 725 | 870 | 1015 | 1160 | 1305 | ||||
- According to the requirements of ASME 3(Process piping Code)
- Safety Factor: 75 : 1, Ultimate tensile strength of 30,000psi
- For gas service, select a tube wall thickness outside of the shaded
- Allowable working pressures are calculated from an S value of 6,000psi for ASTM B75 & B88 Tubing (at -20 to 100°F(-28 to 37°C))
