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Mechanical performance of angel iron

Mechanical performance of angel iron

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(1) Test method 
① Tensile test. Common test standards cover GB/T228-87、JISZ2201、JISZ2241、 ASTMA370、ГОСТ1497、BS18、DIN5014 ② Bending test method. Common test standards cover GB/T232-88、JISZ2204、JISZ2248、ASTME290、ГОСТ14019、 DIN50111. 
(2) Performance index: test projects evaluating steel performance cover ensile test and bending test. Indexes cover yield point, strength of extension, ductility and qualifying curve. 

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