Material type
Category: Materials & treatments
The alloy the spring is made from, chosen by strength, environment and cost.
The most common are music wire (high-carbon steel, high strength), stainless steel (corrosion resistance), chrome silicon (high loads and temperatures) and phosphor bronze / beryllium copper (conductivity and non-magnetism).
The material sets the spring's shear modulus, allowable stress and fatigue life.
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