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按照钢的冶炼质量不同，型钢分为普通型钢和优质型钢。普通型钢按现行金属产品目录又分为大型型钢、中型型钢、小型型钢。 根据截面复杂程度型钢又可分为复杂截面型钢与简单截面型钢，复杂截面型钢有工字钢、槽钢、H型钢、钢轨、 窗框钢、弯曲型钢等； 简单截面的型钢有方钢、圆钢、线材、扁钢、弹簧扁钢、角钢、三角钢、六角钢、弓形钢、椭圆钢等。角钢属建造用碳素结构钢， 是简单断面的型钢钢材，主要用于金属构件及厂房的框架等。在使用中要求有较好的可焊性、塑性变形性能及一定的机械强度。 生产角钢的原料钢坯为低碳方钢坯，成品角钢为热轧成形、正火或热轧状态交货。角钢的检验方法：机械性能检验：①拉伸试验方法。 常用的标准检验方法有GB/T228-87、JISZ2201、JISZ2241、ASTMA370、ГОСТ1497、BS18、DIN50145等；②弯曲试验方法。 常用的标准检验方法有GB/T232-88、JISZ2204、JISZ2248、ASTME290、ГОСТ14019、DIN50111等。 考核角钢性能的检验项目主要为拉伸试验和弯曲试验。指标包括屈服点、抗拉强度、延伸率及弯曲合格等项。 性能指标：考核角钢性能的检验项目主要为拉伸试验和弯曲试验。指标包括屈服点、抗拉强度、延伸率及弯曲合格等项。 According to the different smelting quality of steel, the type steel is divided into ordinary type steel and high-quality type steel. Ordinary steel is divided into the current metal product catalogue and large steel, medium steel, small steel. According to the section complex steel can be divided into complex section steel and simple section steel, complex section steel, groove steel, H steel, rail, window frame steel, curved steel; simple section steel has square steel, round steel, wire, flat steel, spring flat steel, angle steel, triangle steel, hexagonal steel, bow steel, oval steel, etc.Angle steel belongs to the construction of carbon structure steel, is a simple section of the type steel steel, mainly used for metal components and plant frame.Good soldability, plastic deformation performance and certain mechanical strength are required in use. The raw material billet of producing corner steel is low carbon square billet, and the finished corner steel is hot rolled formed, hot or hot rolled state delivery.Inspection method of Angle steel: mechanical performance test: ① tensile test method. Common standard test methods are GB / T228-87, JISZ2201, JISZ2241, ASTMA370, ГОСТ1497, BS18, DIN50145, etc., and ② bending test method.Commonused standard test methods are GB / T232-88, JISZ2204, JISZ2248, ASTME290, ГОСТ14019, DIN50111, etc.The test items for assessing the performance of angle steel are mainly tensile test and bending test. The indicators include yield point, tensile strength, elongation rate and bending qualification.Performance index: The test items of angle steel performance are mainly tensile test and bending test.The indicators include yield point, tensile strength, elongation rate and bending qualification.
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建筑工地等边三角钢
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