Y- no annealing after cold working, the material is in a hard state. Its performance is characterized by high strength and low plasticity.
According to the hardness grade, Y2- Y2 is higher than Y.M-.
In the annealed state after cold working, the material is soft, with high plasticity and low strength. R- In the supply state after hot pressing, the material is in hot working state, which is similar to soft properties, but the size and surface accuracy are not as strict as those of cold working materials.
What is the material of H62?
H62 indicates that the average copper content is 62%, where H is the pinyin initials of the Chinese character "Huang" and 62 is the average copper content.
Brass has good mechanical properties, good cold and hot plasticity, good machinability, easy brazing and welding, corrosion resistance, but easy to produce corrosion cracks.
Brass can generally be used as various deep drawing bending parts, such as washers, nuts, conduits, pins, rivets, barometer springs, filter screens, radiator parts and so on.
1 and H62 are alloys of copper and zinc. When the content of zinc is less than 39%, zinc can be dissolved in copper to form single-phase A, which is called single-phase brass. Good plasticity, suitable for cold and hot pressing.
2.H62 brass represents ordinary brass, with an average copper content of 62%. Copper alloy with other elements added to ordinary brass is called special brass, which is still represented by H, followed by chemical symbols and the average composition of other added elements.
3.H62 is brass. The chemical composition includes copper content of 60.5-65%, iron content of ≤0. 15%, lead content of ≤0.08%, antimony content of ≤0.005%, bismuth content of ≤0.002%, phosphorus content of ≤0.0 1%, and the total content of zinc and other impurities of ≤ 0.5.
4. Copper 1 10 and H62 are both common brass materials, and the main difference between them lies in their chemical composition and material characteristics: chemical composition: copper 1 10 is a kind of high-purity oxygen-free copper with a purity of over 98% and a very high copper content. H62 is a kind of copper alloy containing zinc, with low copper content and zinc content of about 40%.
Summarize; Copper is one of the earliest metals used by human beings. As early as prehistoric times, people began to mine open-pit copper mines and use the obtained copper to make weapons, tools and other utensils. The use of copper had a far-reaching impact on the progress of early human civilization. Copper is a metal that exists in the earth's crust and ocean. The copper content in the crust is about 0.0 1%, and in some copper deposits, the copper content can reach 3% ~ 5%. Most of the copper in nature exists in the form of compounds, that is, copper ores.