Mechanical Engineering - Engineering Materials - Discussion

Discussion Forum : Engineering Materials - Section 4 (Q.No. 47)
47.
According to Indian standard specifications, a plain carbon steel designated by 40 C8 means that the carbon content is
0.04%
0.35 to 0.45%
0.4 to 0.6%
0.6 to 0.8%
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
3 comments Page 1 of 1.

Yasir Khan said:   5 years ago
40 C 8 designation means there is average 0.40 % of carbon and 0.8% of manganese in average.

Snjvsngh negi said:   8 years ago
The numerical figure represent the "The average carbon content" and it is 100 times of carbon content.

So (0.35+0.45)/2 = 0.40.

And 0.40 is average percentage of carbon content indicated by 40C.

Saurabh said:   8 years ago
Can anyone tell how to calculate this?

Post your comments here:

Your comments will be displayed after verification.