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Seamless 316 Stainless Steel Tubing, 0.50 Inch OD, 0.05 Inch Thick, 0.40 Inch ID

Description & Features

Manufactured to ASTM A269 B90 standards, this bright annealed Seamless 316 Stainless Steel Tubing, 0.50 Inch OD, 0.05 Inch Thick, 0.40 Inch ID is suited for hydraulic and fluid system lines where corrosion resistance and pressure integrity are priorities. The 316 stainless steel construction provides strong resistance to a wide range of corrosive media, making it a reliable choice for demanding industrial environments.

With a 0.50-inch outside diameter, 0.049-inch wall thickness, and a 0.402-inch inside diameter, this tubing carries a maximum working pressure of 2,450 PSI. It is supplied by Marmon/Keystone and stocked under catalog number C1AE76.

SKU: 1/2.049-SS

Supplier Part Number (MPN): 1/2.049-SS-BR-892

Alternate Part Numbers: 1/2.049-316SS-BR, C1AE76, MI-08763831, MINO-01965X80006

Specifications

Burst Pressure 14700	Brand Marmon/Keystone	Brand Marmon - Keystone	Pack Size 12.00	UOM FT	I.D. 0.402 in	Inside Area 0.13	Maximum Working Pressure 2450	O.D. 0.5 in	Rated Flow 6	Rated Flow 6	Safety Factor 6:1	Supplier Part Number 1/2.049-SS-BR-892	Wall Thickness 0.05	Alternate Part Numbers Alternate Part Number 1/2.049-316SS-BR, Alternate Part Number 1/2.049-SS-BR-892, Alternate Part Number C1AE76, Alternate Part Number MI-08763831, Alternate Part Number MINO-01965X80006	Product Weight 0.40 lbs

Similar Products

Model Number	O.D.	Wall Thickness	I.D.	Inside Area	Rated Flow	Maximum Working Pressure	Burst Pressure	Safety Factor
1/4.035-SS Seamless 316 Stainless Tubing	0.25 in	0.035	0.18 in	0.0254	0.9	3500	21000	6:1
1/2.049-SS Seamless 316 Stainless Tubing	0.5 in	0.049	0.402 in	0.1269	6	2450	14700	6:1
1/4.049-SS Seamless 316 Stainless Tubing	0.25 in	0.049	0.152 in	0.0181	0.7	4900	29400	6:1
3/4.065-SS Seamless 316 Stainless Tubing	0.75 in	0.065	0.62 in	0.3018	12	2167	13000	6:1
3/8.049-SS Seamless 316 Stainless Tubing	0.375 in	0.049	0.277 in	0.0602	2.8	3267	19600	6:1
5/8.065-SS Seamless 316 Stainless Tubing	0.5625 in	0.065	0.4325 in	0.1923	9	2600	15600	6:1
1-1/4.120-SS Seamless 316 Stainless Tubing	1.25 in	0.12	1.01 in	0.8008	36.7	2400	14400	6:1
1.109-SS Seamless 316 Stainless Tubing	1 in	0.109	0.788 in	0.4801	22	2725	16350	6:1
1/2.065-SS Seamless 316 Stainless Tubing	0.5 in	0.065	0.37 in	0.1075	4.9	3250	19500	6:1
3/16.035-SS Seamless 316 Stainless Tubing	0.1875 in	0.035	0.1175 in	0.0108	0.4	4667	28000	6:1
3/4.095-SS Seamless 316 Stainless Tubing	0.75 in	0.095	0.56 in	0.2462	11.1	3167	19000	6:1
3/8.035-SS Seamless 316 Stainless Tubing	0.375 in	0.035	0.305 in	0.0731	3.4	2333	14000	6:1

Product Questions & Answers (4)

Question by: Jimmy C on Jan 31, 2026, 7:29 AM

got a line that needs half inch stainless tube, what are the actual sizes on this one?

Answer by: Customer Support on Feb 1, 2026, 9:13 AM

Size-wise, you are looking at 0.50 inch outside diameter tubing with a 0.049 inch wall, which puts the inside diameter at about 0.402 inch.

Question by: Troy F on Jul 23, 2025, 6:58 PM

got a line that needs half inch tubing, is this one actually 0.50 OD and what’s the inside size on it?

Answer by: Customer Support on Jul 25, 2025, 10:22 AM

Dimension-wise, it is 0.500 inch outside diameter with a 0.049 inch wall, which puts the inside diameter at about 0.402 inch.

Question by: Warren P on Dec 6, 2025, 10:22 AM

working pressure on this tubing is listed at 2450 psi, but what safety factor is that based on? trying to figure out if we got enough headroom for a system that sees some shock loading

Answer by: Customer Support on Dec 8, 2025, 6:59 AM

That 2450 psi working pressure is calculated using a 6:1 safety factor, which puts the burst pressure up at 14,700 psi. That 6:1 ratio is the one recommended when your system sees considerable hydraulic shock and mechanical strain. If your shock loading is more on the severe side, the manufacturer's guidance points toward an 8:1 safety factor, which would mean stepping down your working pressure further. On the flip side, if shock and strain are genuinely minimal in your setup, a 4:1 factor allowing higher working pressures can be carefully considered. For most industrial hydraulic work with real-world vibration and pressure spikes, the 6:1 number is the right one to plan around.

Question by: Merle P on Apr 6, 2025, 3:12 PM

What kind of pressure can this tubing handle without blowing?

Answer by: Customer Support on Apr 8, 2025, 6:34 AM

Based on the Barlow formula, this tubing has a burst pressure of 14,700 PSI.