20PCS Alloy Spring Steel Wire, 500mm/20in Black Oil Quenched 55crsi Straight Wire, High Elasticity & High Hardness Steel Wire, Wire Diameter 0.6mm-3.5mm(0.7mm)

Metallic appearance: Spring wire has a black shiny metal surface, giving it a sense of durability. Spring wire usually has an elongated round cross-section and can be cut to the required length as needed. The surface of the spring wire is usually very smooth to reduce friction and wear. After coiling, the spring should be tempered between 380°℃~420℃ to relieve surface stress, and should be hot pressed or stress relieved at 250℃ after shot blasting. Multiple uses: They can be used to make mechanical parts such as springs, tension and torsion springs, as well as medical equipment, automotive manufacturing, electronics and other industries. Their versatility and durability make them ideal for many industries. Elasticity: Spring wire has excellent elasticity and is able to return to its original shape after being stressed. This elasticity makes it ideal for use in springs and other applications that require elasticity, such as mechanical parts, electronic equipment, etc. Widely used in textiles, chemical pipelines, personal DIY, hand-woven, metal jewelry DIY, etc. A variety of specifications to choose from: Choose from a range of specifications and diameters to meet your specific needs.