Alloy, carbon, and stainless steels were the most commonly used spring materials because of their strength. Titanium, however, was gaining popularity in the early 1990s because of its superior strength, light weight, and resistance to corrosion.
Garden tools and springs
Modern light switches are made from plastic, copper, and (maybe) coiled steel springs.
Most metal springs (steel, aluminum, etc) are conductors.
Yes, steel is an alloy made out of mostly Iron and Nickel and if I'm not mistaken a steel crowbar is made out of steel.
It depends entirely on the material of which a spring is made. Some stainless steels are nonmagnetic. If springs are made from any of these steels then they will not be magnetic.
Steel
It really depends on the type of sting you're talking about, here. Car springs are made from steel though, if that's what you're asking! Hope this helps!
to make it strong
hardened steel
It is because steel has a higher elasticity than copper i.e the opposing force of steel is more than that of copper. Elasticity of steel is more than copper because it has a higher value of Young's Modulus.
Chrome vanadium spring steel
Garden tools and springs
Modern light switches are made from plastic, copper, and (maybe) coiled steel springs.
The automotive industry is the largest consumer of steel springs.
The frame and springs are steel. The bed is a fabric webbing. The springs attach to plastic fittings on the bed. The padding is filled with expanded foam and covered with a plastic-coated fabric.
Usually it's a steel frame, then a steel mesh suspended by springs, then foam pads, then the cover. It can be various types of cloth or leather.
High grade spring steel. (Hardness with some flexability, not "springs" like a conventional "pressure plate".)