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

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.

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.

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.

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