With the development of science, Galvanized Iron Wire is more and more widely used in daily life. Galvanized wire is divided into hot dip galvanized wire and cold dip galvanized wire. A hot-dip galvanized wire is immersed in a molten zinc solution. The production speed is fast. The coating is thick but uneven. The minimum thickness allowed by the market is 45 microns. Theoretically up to 300 microns or larger. The color is darker, consumes more zinc metal, forms a penetrating layer with base metals, and has good corrosion resistance. In outdoor environments, hot-dip galvanizing can last for decades. Cold-dip galvanized wire (electro-galvanized wire) gradually coats zinc on the metal surface through the unidirectional current in the electroplating tank. The production speed is slow, the coating is uniform, the thickness is thin, usually only 3-15 microns, the appearance is bright, the corrosion resistance is poor, and it usually rusts within a few months.
Galvanized iron wire is widely used in various fields such as construction, handicrafts, wire mesh, highway guardrail, product packaging and daily civil use. The galvanized wire used for construction binding is 22# (0.71mm), which is cheap, flexible, and not easy to break. It is one of the ideal binding wires for the construction industry. It mainly uses low-zinc cold-galvanized iron wire. Mainly use low zinc cold galvanized iron wire. The process galvanizing line is specially treated, one line is uninterrupted, the zinc content is uniform and bright, and the total price is slightly expensive. Galvanized steel wire also includes steel wire spreading: the weight of each coil is about 100 kg to 1000 kg, mainly suitable for industry, agriculture and animal husbandry.
The hardness standard of galvanized steel wire is a very important performance index and an economical test method. However, there is no uniform and clear definition of the hardness of metal materials at home and abroad, including all test methods. In general, the hardness of a metal is often considered to be a material's resistance to plastic deformation, scratching, abrasion or cutting.