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T. O'Heir · September 9, 2019, 01:05 PM

No, they don't. Coil springs do not lose temper from being used or compressed. A flat spring can get work hardened at the bends, but they do not lose temper from being used either(think in terms of rear car springs. Those are just flat springs. When they break it's not the spring that breaks. It's the strapping holding 'em together.).
A 6 or 7 round spring is a different length. A stiffer spring is just that. A heavier poundage.
"...can get crushed some..." Antique paper shells maybe but not a modern plastic one.

September 9, 2019, 01:05 PM	#5
T. O'Heir Senior Member Join Date: February 13, 2002 Location: Canada Posts: 12,453	No, they don't. Coil springs do not lose temper from being used or compressed. A flat spring can get work hardened at the bends, but they do not lose temper from being used either(think in terms of rear car springs. Those are just flat springs. When they break it's not the spring that breaks. It's the strapping holding 'em together.). A 6 or 7 round spring is a different length. A stiffer spring is just that. A heavier poundage. "...can get crushed some..." Antique paper shells maybe but not a modern plastic one. __________________ Spelling and grammar count!