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