Profile: Tianjin Xinhehua Iron and Steel Co., Ltd. is a supplier of steel products and construction materials. We supply steel bars, shapes, plates, rolls, pipes & tubes, and various hardware products. Our steel bars & shapes include H, I, ASTM, EN, and JIS standard channels & angles. Our steel plates & rolls are available in various forms such as hot-dip galvanized, pre-painted, acid pickled, cold rolled and hot-dip galvanized steel sheet. Cold rolling is a process by which the sheet metal or strip stock is introduced between rollers and then compressed & squeezed. The amount of strain introduced determines the hardness and other material properties of the finished product. Cold rolling is undertaken to reduce the thickness, improve the surface finish & thickness tolerance and as a preparation for surface coating. Our cold rolled products are available in the thickness and width ranges from 0.23mm-1.5mm & 700mm-1250mm respectively. These cold rolled products can be widely used in automobile, home appliances, and chemical industry. It can also be used as substrate for HDG, AZ, PPGI. Hot-dip galvanizing is a process in which zinc bonds to steel at the molecular level to produce a four-layer corrosion-resistant finish. The first three layers are zinc-iron alloy layers that are actually harder than the base steel. The fourth or top layer is pure zinc. These products have excellent corrosion protection. Hot-dip galvalume steel sheet is substrated on cold rolled steel in various strength and specification. It offers long-term corrosion resistance and heat anti-oxidation resistance of aluminum & galvanic behavior effect of zinc. Galvalume steel sheets are excellent in adhesion with coating layer and paint. These are widely applied in roofing, external siding, garage, barrier and shutters.

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