All of the following statements about cast cobalt alloy are true EXCEPT_____________?

All of the following statements about cast cobalt alloy are true EXCEPT_____________?

(A) They have a modulus of elasticity twice that of gold alloys

(B) They are more rigid than gold alloys

(C) They have higher ductility than gold alloys

(D) They have a lower proportional limit than gold alloys

Submitted By :Ali Uppal

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