Stainless Steel Tube Pressure Rating Charts

Table 1. Temperature De-rating Factors

Temp. °F (°C)	Stainless Steel ASTM A269 304	Stainless Steel ASTM A269 316	C. Steel ASTM A179	Copper ASTM B75	Alloy 400
100 (37)	1.00	1.00	1.00	1.00	1.00
200 (93)	1.00	1.00	0.95	0.80	0.88
300 (148)	1.00	1.00	0.90	0.78	0.82
400 (204)	0.93	0.96	0.86	0.58	0.79
500 (260)	0.87	0.92	0.82	0.28	0.79
600 (315)	0.82	0.85	0.77	—	0.79
700 (370)	0.80	0.83	0.76	—	0.79
800 (426)	0.76	0.79	0.59	—	0.76
900 (482)	0.73	0.78	—	—	0.76
1000 (537)	0.69	0.76	—	—	—
1200 (649)	0.30	0.37	—	—	—

Table 2. Stainless steel 304/316L

Tube	Wall Thickness
	0.010	0.012	0.014	0.016	0.020	0.028	0.035	0.049	0.065	0.083	0.095	0.109	0.120	0.134	0.156	0.188
	Working Pressure, psig
1/16	5600	6800	8100	9,500	12,000
1/8				4,800	8,000	9,750	10,500	14,700
3/16				3,200	3,997	5,600	7,374	9,800	12,965
1/4					3,000	4,200	5,250	7,350	9,750	12,450	14,250
5/16					2,400	3,360	4,200	5,880	7,800	9,945	11,437
3/8					2,000	2,999	3,500	4,899	6,500	8,300	9,500	10,899	12,000
1/2					1,500	2,100	2,625	3,675	4,875	6,225	7,125	8,175	9,000
5/8					1,200	1,680	2,100	2,940	3,900	4,980	5,722	6,540	7,200	8,040	9,360	11,220
3/4					999	1,400	1,749	2,450	3,249	4,149	4,749	5,450	6,000	6,700	7,800	9,350
7/8					857	1,200	1,500	2,100	2,786	3,557	4,070	4,670	5,143	5,742	6,686	8,013
1					750	1,050	1,312	1,837	2,437	3,112	3,562	4,087	4,500	5,025	5,850	7,012
1 1/8					665	933	1,166	1,633	2,167	2,767	3,167	3,633	3,999	4,466	5,199	6,232

1 - For higher pressures, see please contact Titan Fittings.

2 - Rating based on repeated pressure testing with a 4:1 design factor based upon hydraulic fluid leakage.