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Seamless 316 Stainless Steel Tubing, 1.00 Inch OD, 0.11 Inch Thick, 0.79 Inch ID

Description & Features

This high-quality tubing from Marmon/Keystone boasts an outside diameter of 1.00 inches and a wall thickness of 0.11 inches, with an inside diameter of 0.79 inches. It is constructed from ASTM A269 B90 seamless 316 stainless steel, ensuring superior strength and durability with a tensile strength rating of 75,000 psi.

Designed for high-pressure applications, the tubing offers a burst pressure of 16,350 psi and a maximum working pressure of 2,725 psi. The inside area is 0.4801 square inches, facilitating a rated flow of 22.4 gallons per minute, making it ideal for precise fluid handling in demanding environments.

Bright annealed for a clean finish, this tubing is engineered to meet stringent industry standards, providing reliable performance and longevity. The safety factor is 6:1, ensuring secure and efficient application across various industrial uses.

MPN: C1AE65

Supplier Part Number: 1.109-SS-BR

Specifications

Burst Pressure 16350	Brand Marmon/Keystone	Brand Marmon - Keystone	Pack Size 12.00	UOM FT	I.D. 0.788 in	Inside Area 0.48	Maximum Working Pressure 2725	O.D. 1 in	Rated Flow 22	Rated Flow 22	Safety Factor 6:1	Supplier Part Number 1.109-SS-BR	Wall Thickness 0.11	Alternate Part Numbers Alternate Part Number 1.109-SS-BR, Alternate Part Number C1AE65	Product Weight 0.97 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 (3)

Question by: Curt F on Jun 25, 2025, 11:03 AM

tubing says 2725 psi working pressure but I also seen mention of a 6:1 safety factor -- does that number already account for the safety factor or is 2725 the raw calculated pressure?

Answer by: Customer Support on Jun 26, 2025, 12:27 PM

The 2,725 psi working pressure already reflects the 6:1 safety factor applied to the burst pressure of 16,350 psi. That burst figure comes from the Barlow formula using wall thickness, tensile strength, and outside diameter. So 2,725 psi is your safe continuous working pressure for conditions where hydraulic shock and mechanical strain are considered considerable. If your system runs relatively smooth with minimal shock, a 4:1 safety factor allows higher working pressures. On the flip side, severe shock conditions call for an 8:1 factor, which would put your working pressure lower than the listed 2,725 psi.

Question by: Marvin S on Aug 18, 2025, 8:33 PM

got a line that needs 1 inch OD stainless tube. what’s the actual inside size on this one?

Answer by: Customer Support on Aug 20, 2025, 8:37 AM

Inside diameter on this tubing is 0.788 inch, which lines up with the 1.00 inch OD and 0.109 to 0.11 inch wall thickness.

Question by: Travis G on Aug 17, 2025, 5:51 PM

What's the highest pressure this tubing can handle before it busts?

Answer by: Customer Support on Aug 19, 2025, 11:36 AM

This tubing is rated to withstand a burst pressure of 16,350 psi, giving you a solid safety margin.