4- Determine the maximum compression and tensile stress due to bending on the cross section shown below (hint: need to find neutral axis and then I of the cross section with respect to neutral axis) 20mm M=40NM 100mm

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Types and properties of steel

Steel is an alloy of iron. It is formed by heating iron and combining carbon (0.1-1.7%) with it and minor amounts of other elements such sulfur,  chromium, manganese, nickel, etc. Thousands of steel grades have been published, registered, or regulated around the world, each with its chemical composition, and special numbering systems have been devised in various countries to classify the vast number of alloys.