(1) Test method:
① Tensile test method. Common standard inspection methods include GB/T228-87, JISZ2201, JISZ2241, ASTMA370 ГОСТ 1497, BS18, DIN50145, etc.; ② Bending test method. Common standard inspection methods include GB/T232-88, JISZ2204, JISZ2248, ASTME290 ГОСТ 14019, DIN50111, etc.
(2) Performance index: the main inspection items to assess the performance of angle steel are tensile test and bending test. The indexes include yield point, tensile strength, elongation and bending qualification.
Calculated weight of angle steel
Weight per meter=0.00785 * (side width+side width - side thickness) * side thickness
For example, 50 * 5 angle steel: (50+50-5) * 5 * 0.00785=3.73
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