Tube bending and pressure rating reduction?
Tube bending and pressure rating reduction?
(OP)
Question: Does bending reduce pressure rating of 304/316 stainless steel tubing? Is there a way to estimate the extent of pressure rating reduction?
Case: 90 degree bending of 1/4" OD 1/8" ID 0.035" wall thickness, using a hand held bending tool (clamping die dia. 0.9")
Thanks.
Case: 90 degree bending of 1/4" OD 1/8" ID 0.035" wall thickness, using a hand held bending tool (clamping die dia. 0.9")
Thanks.





RE: Tube bending and pressure rating reduction?
RE: Tube bending and pressure rating reduction?
Workmanship is the key to maintaining roundness and maintaining the tube connections clean, square, and aligned.
RE: Tube bending and pressure rating reduction?
RE: Tube bending and pressure rating reduction?
RE: Tube bending and pressure rating reduction?
Typically (for systems other than hydraulics with high pressure pulsation) tubing is rated based on some fraction of its burst strength. Usually 1/4 is used.
For high fatigue applications everything gets more complicated.
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P.E. Metallurgy, Plymouth Tube