The following figure shows the tensile stress-strain curve for a plain-carbon steel.

(1) What is this alloy's tensile strength?
(A) 650 MPa
(B) 300 MPa
(C) 570 MPa
(D) 3,000 MPa
(2) What is its modulus of elasticity?
(A) 320 GPa
(B) 400 GPa
(C) 500 GPa
(D) 215 GPa
(3) What is the yield strength?
(A) 550 MPa
(B) 420 MPa
(C) 600 MPa
(D) 1000 MPa

Transcribed Image Text:

600 80 500 MPa 600 103 psi 80 60 400 400 60 300 40 40 200 200 20 20 100 0.005 0.05 0.10 0.15 Strain Stress (MPa) Stress (103 psi)