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What is the main difference between SAE 1213 steel and SAE 12L13 steel? L indicates that Lead has been added to the material for

What is the main difference between SAE 1213 steel and SAE 12L13 steel? L indicates that Lead has been added to the material for added machineability L indicates the material has been heat treated OL indicates the material has low carbon content No difference Question 10 3 pts If a shovel blade is made from SAE 1040 steel, would you recommend flame hardening to give its edge a surface hardness of HRC 40? Explain. Edit View Insert Format Tools Table 12pt v Paragraph B I U A T 3

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