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	—	—	—

Notes: Values are transcribed from the image. Replace any “—” with the appropriate factor if you have a more precise source.

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

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
	Bursting Pressure, psig
1/16	22,400	27,200	32,400	38,000	48,000
1/8				19,200	24,000	39,000	42,000	58,800
3/16				12,800	15,998	22,403	29,498	39,203	51,863
1/4					12,000	16,800	21,000	29,400	39,000	49,800	57,000
5/16					9,600	13,440	16,800	23,520	31,200	39,780	45,750
3/8					8,003	11,998	14,003	19,598	26,003	33,203	38,003	43,598	48,000
1/2					6,000	8,400	10,500	14,700	19,500	24,900	28,500	32,700	36,000
5/8					4,800	6,720	8,400	11,760	15,600	19,920	22,888	26,160	28,800	32,160	37,440	44,880
3/4					3,998	5,603	6,998	9,803	12,997	16,598	18,998	21,803	24,000	26,800	31,200	37,403
7/8					3,428	4,800	6,000	8,400	11,145	14,228	16,283	18,683	20,573	22,971	26,745	32,055
1					3,000	4,200	5,250	7,350	9,750	12,450	14,250	16,350	18,000	20,100	23,400	28,050
1 1/8					2,663	3,735	4,665	6,533	8,670	11,070	12,668	14,535	15,998	17,866	20,798	24,930

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.