Copper Plate, made of pure copper or copper alloy in various shapes including rods,wires, plates, strips,tubes, foils,ect.,collectively referred to as copper.
Brass sheet are copper zinc alloys. In general, they have good strength and corrosion resistance, although their structure and properties are a function of zinc content. Alloys containing up to approximately 35% zinc are single phase alloys, consisting of a solid solution of zinc and alpha copper. These brasses have good strength and ductility, and are easily cold worked. The strength and ductility of these alloys increases with increasing zinc content. The alpha alloys can be differentiated by a gradual change in color, from golden yellow to red, as the zinc content is increased up to 35%. Gilding 95%, Commercial Bronze, Jewelry Bronze, Red Brass and Cartridge Brass are in this category of brasses.Brasses frequently contain lead in order to improve machinability.
The microstructure of the leaded brasses is similar to that of the unleaded brasses with the addition of almost pure lead particles found in the grain boundaries and inter-dendritic spacings. The lead is observed in the microstructure as discrete, globular particles because it is practically insoluble in solid copper. The number and size of the lead particles increases with increasing lead content.
1. The surface of hot rolled plate should be clean; Delamination, cracks, peeling, inclusion and green rust are not allowed, but repair is allowed, and the thickness of the plate should not exceed the allowable deviation after repair.
The surface of hot rolled plate is allowed to have slight and local scratches, spots, pits, pressed objects, wrinkles, roller
marks and other deviations that do not make the thickness of the plate exceed the allowable deviation.
2. The surface of cold rolled plate should be smooth and clean; Delamination, cracking, peeling, inclusion and green rust are not allowed.
The surface of the cold-rolled sheet is allowed to have slight and local scratches, spots, pits, pressed objects, wrinkles, roller marks, oil marks and other deviations that do not make the thickness of the sheet exceed the allowable deviation.
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E-mail: metal@lowifar.com
Add: Tianxiang Road, Huishan District, Wuxi City, Jiangsu Province
