Quote:
Originally Posted by ZDan
I appreciate that there must be some misunderstanding. But to be clear, it isn't just that there are "other" parameters involved, the fact is that "mass of steel" tells you *absolutely nothing* about spring rate. If you have two springs and one weighs more than the other, without more info you cannot know which one is stiffer. Heavier could be stiffer, or it could be softer.
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On it's own, it does not determine the spring rate, you are correct, and other factors must be taken into account. However, where this misunderstanding may have arisen was that the technician was not comparing his spring vs a different brand spring (which is made of a different material). He was trying to explain the differences between spring rates based on their brand spring only, briefly going into detail about mass and coil thickness.
If it was a different brand spring, then obviously these factors change due to the different material.