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Laboratory Testing and Evaluation Report
Engineering and Construction
Pages 6 (1506 words)
Laboratory Testing and Evaluation Name Course Tutor Date Contents Number Topic Pages 1 Introduction 1-2 2 Structure of Materials 3 3 Expected Theoretical Results 4-5 4 Actual Results 6-7 5 Conclusion 8 Bibliography 9 Introduction The laboratory testing and evaluation study is focused on two material grades specified in JIS G3141 (2011)…
A theoretical study on their mechanical properties is also made. Samples of both finished materials having 1.2 mm thickness are tested against their mechanical properties which include universal testing and hardness testing. Another study of same grade of material which is kept under different process conditions is also made. Samples of 1.2 mm finished skin rolled SPCC steel versus 1.2 mm annealed SPCC steel were also studied in the same manner. As per discussing the chemical composition of the two materials, JISF (2011) had shown the allowable alloying percentage as given in Table 1. Table 1 Symbol of Grade C (%) Mn (%) P (%) S (%) SPCC steel 0.15 max 0.60 max 0.10 max 0.050 max SPCG steel 0.02 max 0.25 max 0.020 max 0.020 max However, the mill test certificates of the samples reveal following composition as given in Table 2 of the two materials: Table 2 Symbol of Grade C (%) Mn (%) P (%) S (%) SPCC steel 0.10 0.23 0.02 0.009 SPCG steel 0.002 0.17 0.019 0.007 As evident from the steel grades, commercial SPCC steel is applied in forming applications, and extra deep drawing SPCG steels are meant to be deep drawn. These steels are widely used in various applications. SPCC steel is being used in the making of door hinges, pans, casings, galvanised steels, and profile sheets. ...
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