Seamless 316 Stainless Steel Tubing, 0.25 Inch OD, 0.04 Inch Thick, 0.18 Inch ID

Based on a 6:1 safety factor, the maximum working pressure is 3500 psi. The actual burst pressure sits much higher at 21,000 psi, but staying at or below the 3500 mark ensures safe continuous operation.

For sizing, it has a 0.25 inch outside diameter with a 0.035 inch wall, which puts the inside diameter at 0.18 inch.

At a 6:1 safety factor, the working pressure comes out to 3,500 psi. That safety factor is specifically intended for situations where considerable hydraulic shock and mechanical strain are present. If your application runs into more severe shock conditions, a higher safety factor of 8:1 should be applied, which would bring the working pressure down below that 3,500 psi figure. On the flip side, if shock and strain are minimal, a 4:1 safety factor can be carefully considered, which opens up higher working pressures. The 3,500 psi rating is not the ceiling in all cases, it is the middle-ground figure built around moderate real-world conditions.

For sizing, it is 0.25 inch outside diameter with a 0.04 inch wall and a 0.18 inch inside diameter.

Based on the Barlow formula, this tubing has a burst pressure of 21,000 psi.