了解建筑金属材料的特性与应用（Understanding the characteristics and applications of building metal materials）.docVIP

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了解建筑金属材料的特性与应用（Understanding the characteristics and applications of building metal materials）.doc

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了解建筑金属材料的特性与应用（Understanding the characteristics and applications of building metal materials）

了解建筑金属材料的特性与应用（Understanding the characteristics and applications of building metal materials） Understanding the characteristics and applications of building metal materials I. steel used for decoration (1) ordinary hot rolled sections; According to the different sections of section steel, they can be divided into angle steel, flat steel, channel steel, I-beam and hot rolled L steel. Angle steel is divided into equal angle steel and unequal angle steel. (two) cold-formed steel According to its section shape, cold formed steel has cold bending equilateral, unequal angle steel, cold bending equilateral, non equilateral channel steel, cold-formed square steel tube, rectangular welded steel pipe and so on. According to the section shape of cold-formed steel products are divided into: cold-formed circular hollow steel tube, also known as Y, code; cold-formed square hollow section, referred to as square tube, rectangular tube, F code; J code; special-shaped tube, codenamed YI. Open type cold bending steel, referred to as the opening section, respectively according to the section of code: JD, JB (equalangle) (unequal angle), CD (CB, equilateral channels), CN (scalene channel) (edge channel), CW (channel section with outer edge (Z), Z steel ZJ (Z), edge shape steel). They are divided into 235, 345 and 390 grades according to the product yield strength grade. Cold formed steel is made of plain carbon steel or ordinary low alloy steel strip and steel plate. It is made by cold bending and welding. Compared with ordinary hot rolled steel, it has the characteristics of economic, reasonable force and flexible application. (three) stainless steel products Stainless steel is usually defined as a ferrous alloy with more than 12% chromium corrosion resistance. According to the kinds of corrosion-resistant alloy elements, they can be divided into chromium stainless steel, nickel chromium stainless steel and nickel chromium titanium stainless steel. According to the characteristics of