Using 45 steel, with excellent elasticity, and fatigue resistance. Nickel-plated, better corrosion resistance and surface hardness. Features Using 45 carbon steel, is the best material for spring, with excellent elasticity,...

They are a popular upgrade for 3D printer heated beds, such as those on Creality Ender 3 and CR-10 models, because they are stiffer and stronger than standard springs. This...