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Mechanical Engineering - Engineering Materials - Discussion

Discussion Forum : Engineering Materials - Section 3 (Q.No. 38)
Engineering Materials
38.
According to Indian standard specifications, SG 400/15 means
spheroidal graphite cast iron with B.H.N. 400 and minimum tensile strength 15 MPa
spheroidal graphite cast iron with minimum tensile strength 400 MPa and 15 percent elongation
spheroidal graphite cast iron with minimum compressive strength 400 MPa and 15 percent reduction in area
none of the above
Answer: Option
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