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Both 4140 and 4340 steel alloys may be quenched and tempered to achieve tensile strengths above 200 ksi. 4340 steel has better hardenability than

Both 4140 and 4340 steel alloys may be quenched and tempered to achieve tensile strengths above 200 ksi. 4340 steel has better hardenability than 4140 steel. 1. Which one would you use for manufacturing of an aircraft landing gear and why? 2. Which one would you use for manufacturing of heavy-duty gears and why? Be sure to answer both halves of both questions, 4 answers total.

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