We wish to produce a 1050 steel that has a Brinell hardness of at least 330 and elongation of at least 15%. a. Recommend a heat treatment, including appropriate temperature, that permits this to be achieved. Determine the yield strength and tensile strength that are obtained by this heat treatment. b. What yield strength would be obtained in a 1080 steel using the same heat treatment process? c. What yield strength, tensile strength and % elongation would be obtained in the 1050 steel it were normalized?
We wish to produce a 1050 steel that has a Brinell hardness of at least 330 and elongation of at least 15%. a. Recommend a heat treatment, including appropriate temperature, that permits this to be achieved. Determine the yield strength and tensile strength that are obtained by this heat treatment. b. What yield strength would be obtained in a 1080 steel using the same heat treatment process? c. What yield strength, tensile strength and % elongation would be obtained in the 1050 steel it were normalized?
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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One problem which contains 3 parts, a , b and c
![We wish to produce a 1050 steel that has a Brinell hardness of at least 330 and elongation of
at least 15%.
Strength (psi)
a. Recommend a heat treatment, including appropriate temperature, that permits this to
be achieved. Determine the yield strength and tensile strength that are obtained by
this heat treatment.
b. What yield strength would be obtained in a 1080 steel using the same heat treatment
process?
c. What yield strength, tensile strength and % elongation would be obtained in the 1050
steel it were normalized?
200,000- Tensile
100,000-
Yield
Rockwell
C hardness
Tempering temperature (°C)
Tensile strength (psi)
Effect of tempering temperature on
the properties of a eutectoid steel.
300,000
200 400 600 800
200,000
Figure 1
100,000
200
M₂
k
70
60
Bainite
50
40
30
20
10
Rockwell C hardness
% Elongation
Nose
Tensile strength
Yield and tensile strength (ksi)
160
140
120
100
80
300 400 500 600 700
Transformation temperature (°C)
60
40
Eutectoid
Pearlite
0
Figure 2
20% Elongation
Impact energy
30
Tensile
strength
20
10
0
800
Normalized-
I
0.2 0.4 0.6
Weight percent carbon
The effect of carbon and heat
treatment on the properties of plain
carbon steels.
Normalized
% Elongation
Annealed
Normalized
0.8
100
Annealed
Yield strength 40
Annealed
The effect of
transformation
temperature on the
properties of a eutectoid
steel.
80
60
20
1.0
% Elongation or impact energy (ft lb)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7d0c803a-601a-4460-8a85-87d4415870e7%2F508efc7d-8b96-470a-86e3-e67308e19789%2Fwued0zn_processed.jpeg&w=3840&q=75)
Transcribed Image Text:We wish to produce a 1050 steel that has a Brinell hardness of at least 330 and elongation of
at least 15%.
Strength (psi)
a. Recommend a heat treatment, including appropriate temperature, that permits this to
be achieved. Determine the yield strength and tensile strength that are obtained by
this heat treatment.
b. What yield strength would be obtained in a 1080 steel using the same heat treatment
process?
c. What yield strength, tensile strength and % elongation would be obtained in the 1050
steel it were normalized?
200,000- Tensile
100,000-
Yield
Rockwell
C hardness
Tempering temperature (°C)
Tensile strength (psi)
Effect of tempering temperature on
the properties of a eutectoid steel.
300,000
200 400 600 800
200,000
Figure 1
100,000
200
M₂
k
70
60
Bainite
50
40
30
20
10
Rockwell C hardness
% Elongation
Nose
Tensile strength
Yield and tensile strength (ksi)
160
140
120
100
80
300 400 500 600 700
Transformation temperature (°C)
60
40
Eutectoid
Pearlite
0
Figure 2
20% Elongation
Impact energy
30
Tensile
strength
20
10
0
800
Normalized-
I
0.2 0.4 0.6
Weight percent carbon
The effect of carbon and heat
treatment on the properties of plain
carbon steels.
Normalized
% Elongation
Annealed
Normalized
0.8
100
Annealed
Yield strength 40
Annealed
The effect of
transformation
temperature on the
properties of a eutectoid
steel.
80
60
20
1.0
% Elongation or impact energy (ft lb)
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