A variety of steel, elastic, strong, and tough, rolled for springs, etc.
The steels used for spring making depend on the application and type of spring. They range from plain carbon grades in the range 0.5% to 1.00% C. to Chromium, Chromium-Vanadium, Nickel-Chromium-Molybdenum, Silico- Manganese and Silicon-Manganese-Chromium-Molybdenum types. Full details can be found in BS5770.
A high alloy metal that will spring back to its original shape after being formed or bent into another shape. It is often used to manufacture flexible forms. See flexible forms.