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.
  This depends on a number of factors, such as what is the temperature of the water you are going to swim in. This will be determined either by some sort of pool heater or â¦ by the water becoming naturally heated by the sun. Obviously you can swim if the water is 80 degrees and its 75 degrees out.efinitely not recommended. You can die. Yes, of course you can go swimming as long as the water is not cold. Just make sure you dry yourself and change clothes as soon as you â¦ get out of the water. You cannot lie in the sun.