To calculate a working pressure derated for elevated temperature, multiply the hose working pressure shown in the catalog by the appropriate derating factor below.
Note: The working pressure of an assembly at elevated temperatures may be affected by fitting type, material, and method of attachment.
Working Pressure Derating Factor
| Temp, Deg F |
T304 T301* |
T304L | T316 | T316L | T321 | T430 | Copper | C276 | Monel 400 & C22 |
Inconel 600 |
Inconel 625 |
Carbon Steel** |
Alum 3003 H14 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 100 200 300 400 500 |
1.0 1.0 1.0 0.94 0.88 |
1.0 1.0 1.0 0.93 0.86 |
1.0 1.0 1.0 0.97 0.90 |
1.0 1.0 1.0 0.93 0.86 |
1.0 1.0 1.0 1.0 0.96 |
1.0 1.0 0.98 0.96 0.95 |
1.0 0.80 0.78 0.50 0.13 |
1.00 1.00 1.00 1.00 0.99 |
1.0 0.88 0.82 0.79 0.79 |
1.0 1.0 1.0 1.0 1.0 |
1.0 1.0 1.0 1.0 0.97 |
1.00 1.00 1.00 1.00 0.95 |
1.0 1.0 0.64 0.34 |
| 600 650 700 750 |
0.82 0.81 0.80 0.78 |
0.81 0.79 0.77 0.75 |
0.85 0.84 0.82 0.81 |
0.81 0.79 0.77 0.75 |
0.91 0.89 0.87 0.86 |
0.93 0.91 0.88 0.86 |
0.93 0.90 0.88 0.86 |
0.79 0.79 0.79 0.79 |
1.0 1.0 1.0 1.0 |
0.95 0.94 0.93 0.93 |
0.87 0.85 0.83 0.65 |
||
| 800 850 900 950 |
0.76 0.75 0.73 0.72 |
0.74 0.72 0.71 0.69 |
0.80 0.79 0.78 0.77 |
0.74 0.72 0.71 0.69 |
0.84 0.84 0.83 0.81 |
0.82 0.52 0.49 0.43 |
0.84 0.83 0.82 0.81 |
0.79 0.79 0.76 0.71 |
1.0 0.99 0.95 0.95 |
0.93 0.93 0.93 0.93 |
0.54 0.44 0.33 0.23 |
||
| 1000 1050 1100 1150 |
0.69 0.61 0.49 0.39 |
0.67 0.65 0.61 0.53 |
0.77 0.73 0.62 0.49 |
0.67 0.65 0.61 0.52 |
0.81 0.70 0.55 0.41 |
0.32 | 0.80 0.68 0.55 0.47 |
0.48 | 0.42 0.27 0.20 |
0.93 0.93 0.69 0.57 |
|||
| 1200 1250 1300 |
0.30 0.24 |
0.38 0.28 0.21 |
0.37 0.28 0.21 |
0.38 0.28 0.21 |
0.32 0.25 |
0.36 0.29 |
0.36 | ||||||
| ASTM Form |
A269 Pipe |
A269 Pipe |
A269 Pipe |
A269 Pipe |
A312 Pipe |
A268 Pipe |
B68 Tube |
B622 Pipe |
B165 Pipe |
B167 Pipe |
B443 Pipe |
A53 Pipe |
B210 Pipe |