Steel is the most common material for spring washers due to its ease of process and its high tensile strength. Chrome vandium alloy is a higher quality steel with a good through-hardening capability; it is used to make very thick spring washers.
How to Prevent Swimmerâs Itch. Thereâs no cure-all to eliminate swimmerâs itch. The negative symptoms are, ironically, a problem of our own immune systemâs making, and short of abstaining from swimming altogether, thereâs a risk of getting swimmerâs itch in a Northern Michigan lake.
When Itâs Safe to Swim Again. 1  Your surgeon, family doctor, physiotherapist or medical team has confirmed it is safe for you to do so. 2  Your wound has completely healed; ask your surgeon how long your wound will take to heal. 3  Your wound does not cause you any pain.