Mechanical Engineering - Engineering Materials - Discussion
Discussion Forum : Engineering Materials - Section 1 (Q.No. 35)
35.
Iron-carbon alloys containing 1.7 to 4.3% carbon are known as
Discussion:
18 comments Page 1 of 2.
Vinay BEL said:
5 years ago
2.1 - 4.3 %c hypo eutectic.
4.3 - 6.67 %c hyper eutectic.
4.3 - 6.67 %c hyper eutectic.
(1)
Deepak Soni said:
7 years ago
Eutectic cast iron with a carbon percentage (%C) equal to 4.3%.
Hypoeutectic cast iron with a carbon percentage (%C) from 2 to 4.3%.
Hypereutectic cast iron with a carbon percentage (%C) above 4.3%.
Hypoeutectic cast iron with a carbon percentage (%C) from 2 to 4.3%.
Hypereutectic cast iron with a carbon percentage (%C) above 4.3%.
(1)
Varadraj said:
7 years ago
For Cast Iron, the % of 'C' must be greater than 2.1.
So, I think that the answer should be D.
So, I think that the answer should be D.
(1)
Kartik kaushal said:
8 years ago
The iron-carbon alloys containing up to 1.7% carbon are called steels and those containing over 1.7% carbon are called cast irons. The iron-carbon alloys containing 4.3% carbon are called eutectic cast irons, above 4.3% carbon are termed as hyper-eutectic cast iron and those in the range of 1.7 to 4.3% carbon are called hypo-eutectic cast irons.
(1)
SOBHARAM YADAV said:
8 years ago
In which of the following operation on length, the spindle speed will be minimum
(A) Knurling.
(B) Taper turning
(C) Parting of.
(D) Thread cutting
(A) Knurling.
(B) Taper turning
(C) Parting of.
(D) Thread cutting
Mahesh said:
7 years ago
1.7 to 2 = hyper eutectoid.
2 to 6.67 = cast iron.
2 to 6.67 = cast iron.
Darshan said:
7 years ago
@Sobharam Yadav.
Thread cutting.
Thread cutting.
Kaju said:
7 years ago
You are right, your explanation is very good Thanks @Ram.
Akhila said:
8 years ago
The alloy containing more then 2% iron is know as 1-Mild Steel, 2-Cast Iron, 3-High SpeedSteel, 4-Low alloy Steel.
Abhi said:
1 decade ago
Dude hypo eutectic cast irons have 2-4.3% carbon. 0.77 to 2.1%C Hypereutectoid steel.
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