I am just to buy a raw material for cold coiled spring, but i don´t know the raw material hardness specification, the final coil spring specification is near 50HRC. Could you please let me know if I have to buy this material with the hardness value near the final specification.
hello everyone
I would like to know if there are some tensile resistance specification to cold coiling spring raw material; i mean, must be the hardness high or low? in order to reach a final hardness betwene 48 - 52HRC
thanks a lot
