Mechanical Engineering - Engineering Materials - Discussion
Discussion Forum : Engineering Materials - Section 1 (Q.No. 20)
20.
White cast iron has a high tensile strength and a low compressive strength.
Answer: Option
Explanation:
White cast iron has a low tensile strength and a high compressive strength.
Source: https://en.wikipedia.org/wiki/Cast_iron#Table_of_comparative_qualities_of_cast_irons
Discussion:
24 comments Page 1 of 3.
Deepak singh jalal said:
1 decade ago
Cast iron is a brittle material and they show more strength in compression than in tension.
Sankar said:
1 decade ago
Cast iron containing graphite flakes so it has a brittle in nature, so low strength in tension than in compression.
Rohit said:
1 decade ago
Cast iron contains graphite flakes (sheets) means it contain carbon & is brittle in nature, so cast iron is brittle & brittle materials show low strength in tension than in compression.
Melak Tilaye said:
8 years ago
According to my suggestion,
The question talks about the mechanical property of white cast iron.
Therefore some mechanical properties of wcl are:.
No ductility.
Extremely hard and brittle.
Excellent wear resistant.
Abrasion resistant.
High compressive stress and.
Low tensile strength.
The question talks about the mechanical property of white cast iron.
Therefore some mechanical properties of wcl are:.
No ductility.
Extremely hard and brittle.
Excellent wear resistant.
Abrasion resistant.
High compressive stress and.
Low tensile strength.
Md minaz said:
8 years ago
The Correct Answer should be A.
Afolabi Samuel Olabode said:
8 years ago
White cast iron is hard and brittle, hence it high compressive strength with corresponding poor strength under tension as generally associated with brittle materials.
Sankar Shaw said:
8 years ago
White cast iron is very hard and brittle, so it can not be machines properly. It is the only member from cast iron family where carbon is presented only as carbide. For the presence of different types of carbide and less present of silicon it is extremely hard and brittle so lacks tensile strength.
Kumar said:
8 years ago
Cast iron has low percentage of elongation it is brittle material and it is used in lathe bed that's why it having high compression.
Avilash said:
7 years ago
Yes, The answer is yes. It has high tensile strength and low compressive strength.
Bhargav said:
7 years ago
High tensile strength and low compressive strength.
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