Recommended Wall Thickness of Tubing for Various
Pressures and Types of Service
HYDRAULIC PRESSURE TUBING | |||||||||
Tube O.D. | Fitting Size | SEAMLESS AND WELDED | |||||||
for working pressures of | |||||||||
500 psi | 1000 psi | 1500 psi | 2000 psi | 2500 psi | 3000 psi | 4000 psi | 5000 psi | ||
“A” SERVICE – SAFETY FACTOR: 4 | |||||||||
1/8 | 2 | 0.032 | 0.032 | 0.032 | 0.032 | 0.032 | 0.032 | 0.032 | 0.032 |
3/16 | 3 | 0.032 | 0.032 | 0.032 | 0.032 | 0.032 | 0.032 | 0.032 | 0.032 |
1/4 | 4 | 0.035 | 0.035 | 0.035 | 0.035 | 0.035 | 0.035 | 0.035 | 0.049 |
5/16 | 5 | 0.035 | 0.035 | 0.035 | 0.035 | 0.035 | 0.035 | 0.049 | 0.049 |
3/8 | 6 | 0.035 | 0.035 | 0.035 | 0.035 | 0.035 | 0.035 | 0.049 | 0.058 |
1/2 | 8 | 0.035 | 0.035 | 0.035 | 0.035 | 0.049 | 0.049 | 0.065 | 0.083 |
5/8 | 10 | 0.049 | 0.049 | 0.049 | 0.049 | 0.049 | 0.065 | 0.083 | 0.110 |
3/4 | 12 | 0.049 | 0.049 | 0.049 | 0.049 | 0.065 | 0.065 | 0.095 | 0.130 |
7/8 | 14 | 0.049 | 0.049 | 0.049 | 0.065 | 0.065 | 0.095 | – | – |
1 | 16 | 0.049 | 0.049 | 0.049 | 0.065 | 0.110 | 0.110 | 0.130 | 0.165 |
1-1/4 | 20 | 0.083 | 0.083 | 0.083 | 0.083 | 0.120 | 0.120 | – | – |
1-1/2 | 24 | 0.095 | 0.095 | 0.095 | 0.095 | 0.130 | 0.130 | – | – |
“B” SERVICE – SAFETY FACTOR: 6 | |||||||||
1/8 | 2 | 0.032 | 0.032 | 0.032 | 0.032 | 0.032 | 0.032 | 0.032 | 0.032 |
3/16 | 3 | 0.032 | 0.032 | 0.032 | 0.032 | 0.032 | 0.032 | 0.032 | – |
1/4 | 4 | 0.035 | 0.035 | 0.035 | 0.035 | 0.035 | 0.035 | 0.049 | 0.065 |
5/16 | 5 | 0.035 | 0.035 | 0.035 | 0.035 | 0.035 | 0.049 | 0.058 | – |
Recommended Wall Thickness of Tubing for Various
Pressures and Types of Service
HYDRAULIC PRESSURE TUBING | |||||||||
Tube O.D. | Fitting Size | SEAMLESS AND WELDED | |||||||
for working pressures of | |||||||||
500 psi | 1000 psi | 1500 psi | 2000 psi | 2500 psi | 3000 psi | 4000 psi | 5000 psi | ||
“B” SERVICE – SAFETY FACTOR: 6 | |||||||||
3/8 | 6 | 0.035 | 0.035 | 0.035 | 0.035 | 0.049 | 0.058 | 0.072 | 0.095 |
1/2 | 8 | 0.035 | 0.035 | 0.035 | 0.049 | 0.072 | 0.072 | 0.095 | 0.130 |
5/8 | 10 | 0.049 | 0.049 | 0.049 | 0.065 | 0.083 | 0.083 | 0.130 | 0.165 |
3/4 | 12 | 0.049 | 0.049 | 0.065 | 0.095 | 0.095 | 0.110 | 0.148 | 0.180 |
7/8 | 14 | 0.049 | 0.049 | 0.065 | 0.095 | – | – | – | |
1 | 16 | 0.049 | 0.049 | 0.065 | 0.110 | 0.120 | 0.148 | – | 0.250 |
1-1/4 | 20 | 0.083 | 0.083 | 0.083 | 0.120 | – | – | 0.203 | – |
1-1/2 | 24 | 0.095 | 0.095 | 0.130 | 0.130 | – | – | – | – |
“C” SERVICE – SAFETY FACTOR: 8 | |||||||||
1/8 | 2 | 0.032 | 0.032 | 0.032 | 0.032 | 0.032 | 0.032 | 0.032 | – |
3/16 | 3 | 0.032 | 0.032 | 0.032 | 0.032 | 0.032 | – | – | – |
1/4 | 4 | 0.035 | 0.035 | 0.035 | 0.035 | 0.049 | 0.049 | 0.065 | 0.083 |
5/16 | 5 | 0.035 | 0.035 | 0.035 | 0.049 | 0.049 | – | – | – |
3/8 | 6 | 0.035 | 0.035 | 0.035 | 0.049 | 0.058 | 0.072 | 0.095 | 0.130 |
1/2 | 8 | 0.035 | 0.035 | 0.049 | 0.072 | 0.083 | 0.095 | 0.130 | – |
5/8 | 10 | 0.049 | 0.049 | 0.065 | 0.083 | 0.110 | 0.120 | 0.165 | – |
3/4 | 12 | 0.049 | 0.049 | 0.065 | 0.095 | 0.120 | 0.148 | – | – |
7/8 | 14 | 0.049 | 0.065 | 0.095 | – | – | – | – | – |
1 | 16 | 0.049 | 0.065 | 0.110 | 0.130 | 0.165 | 0.203 | – | – |
1-1/4 | 20 | 0.083 | 0.083 | 0.120 | – | – | – | – | – |
1-1/2 | 24 | 0.095 | 0.095 | 0.130 | – | – | – | – | – |