According to rule T3.5.5 "The support tube must have the same diameter and thickness as the bent tube." Will a tube of same diameter but larger thickness will also be acceptable as the support tube?
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According to rule T3.5.5 "The support tube must have the same diameter and thickness as the bent tube." Will a tube of same diameter but larger thickness will also be acceptable as the support tube?
Why would you want to do that?
If you're going to weld in a mild steel tube to replace the 4130 one you don't have, you'll need to upsize it either in diameter or wall thickness. Changing wall thickness needs less redesign work, changing diameter will be lighter.
Raptor: I think you will have no problems in using an "oversized" tube in such a case.
Claude: Given the subject of the thread, I would presume they want to use a different tube size because they're lacking tubes of the same size.
Charles: That is in the case you design for strength. If you design for stiffness the difference between mild steel and 4130 is neglible thus there shouldn't be a need for redesign.
Thank you for the responses.
Markus you interpreted our problem just right.
Thank you for helping.