High carbon steel wire spring 1.7mm 72A

1.7mm 72A spring steel wire, selected high-quality high-carbon steel strips as substrates, and refined by precision cold drawing process. With excellent mechanical properties and strict dimensional control, it has become the preferred material in the field of industrial precision spring manufacturing, providing stable support for equipment operation in high load scenarios.​ The quality of the substrate is the core guarantee of performance. 72A high-carbon steel strips with a purity of more than 99.5% were selected to accurately control the content of key elements such as carbon, manganese, and silicon through advanced spectral detection technology. Among them, the carbon content is stable at 0.70%-0.75%, and the manganese element is controlled at 0.60%-0.90%. This ratio allows the steel wire to maintain high strength while having good toughness, laying a solid foundation for subsequent processing and use. The strips are formed by continuous casting and rolling process, and the interna…