Temperature Correction Factor

Metal Hose Temperature Correction Factors



As the service temperature increases, the maximum pressure a hose can withstand decreases. If the design pressure is working at a temperature above ambient then the following temperature correction factors should be applied to work out the true pressure rating the hose should be designed to withstand.

Temperature °C
20 °C 50 °C 100 °C 150 °C 200 °C 250 °C 300 °C 350 °C 400 °C 450 °C 500 °C 550 °C
304L 1 0.87 0.72 0.65 0.59 0.55 0.51 0.48 0.46 0.45 0.44 0.43
304 1 0.88 0.73 0.66 0.6 0.56 0.52 0.5 0.48 0.47 0.46 0.42
Material 321 1 0.92 0.83 0.78 0.74 0.71 0.67 0.64 0.62 0.61 0.6 0.59
316L 1 0.88 0.74 0.67 0.62 0.58 0.54 0.52 0.5 0.48 0.47 0.47
316 1 0.9 0.78 0.71 0.66 0.62 0.58 0.56 0.53 0.52 0.51 0.51
316Ti 1 0.9 0.81 0.76 0.73 0.69 0.65 0.63 0.61 0.59 0.59 0.58