Tire steel wire refers to the steel wire embedded in the edge of rubber tire, also known as bead steel wire or tire edge steel wire. Generally, it refers to the steel wire used for manufacturing the steel wire bundle at the outer tire edge of automobiles, motorcycles, tractors and aircraft. The diameter of the product is 0.96, 1.0, 1.3, 1.4 and 1.65mm, and the diameter of 1mm is the main product. The other type is the edge steel wire used for manufacturing hard edge tires such as bicycles, with a diameter of 2.1mm. Tire steel wire has high tensile strength, toughness and good fatigue resistance.