What is logic behind the use of Steel bar insted of gold
bar?
Answer Posted / sakthi
NOT ONLY BECAUSE OF THERMAL CO-EFFICIENT AND AVAILABILITY.
Consideration of these two factors also important.
Young's Modulus and Ultimate Strength.
Element Young's Modulus Ultimate Strength
Aluminum 70 45
Gold 79 100
silver 83 170
copper 130 210
Iron 211 350
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