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of /home/abouaayt/public_html/aboutcivil/answers/qa-plugin/user-management/layer.php What is difference between Grade-40 & Grade-60 steel? - Civil Engineering Technical Questions Answers - Ask a Civil Engineer
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What is difference between Grade-40 & Grade-60 steel?

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Grade 40 means steel having yield strength of 40Ksi and grade 60 means steel having yield strength of 60 Ksi. So grade 60 is stronger than grade 40.
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