- ahmad alhayek

Question: 2.62 In a disk test performed on a specimen 25 mm in diameter and 6 mm thick, the specimen fractu...

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$2.62 In a disk test performed on a specimen 25 mm in diameter and 6 mm thick, the specimen fractures at a stress of 275 MPa. What was the load on it? 2.63 A piece of steel has a hardness of 300 HB. Calculate its tensile strength, in MPa 2.69 The design speci_cation for a metal requires a minimum hardness of 80 HRA If a Rockwell test is performed and the depth of penetration is 60_m, is the material acceptable?$