1.8mm 72A High Carbon Spring Steel Wire

1.8mm 72A high-carbon steel wire, based on high-quality high-carbon steel, has become a versatile material across the fields of industrial manufacturing, home life and creativity, providing stable and reliable support for various precision needs with the core advantages of "moderate hardness, toughness and wear resistance". Substrate selection is the foundation of quality. High-carbon steel strips with a purity of more than 99.5% are used to stabilize the carbon content in the range of 0.70%-0.75% through precise composition regulation. This is the unique gold ratio of the 72A grade - it not only ensures the foundation hardness of the steel wire, but also avoids the disadvantage of brittle breaking of high-carbon materials. At the same time, the content of manganese elements (0.60%-0.90%) and silicon elements is strictly controlled. After spectral detection and verification, the distribution of each element is evenly performed, ensuring the consistency of the steel wire performance fro…