Condition #1: A structural support for a machine is subjected to a static compression load of 20 kN. The support is manufactured from a circular rod made from SAE 1040 Hot Rolled steel. Specify suitable diameter for the cross section of the rod based on the basic size. For condition 1: It was given to you to use SAE1040 hot rolled steel. In the high-stakes project, you select a different steel for the analysis for condition 1 and determine the basic size A-10 Typical properties of carbon and alloy steels. Ultimate strength, , Yield strength, Percent Material SAE no. Condition ksi MPa ksi MPa elengation 1020 Annealed 37 393 43 296 36 1020 Hot rolled Cold drawn 65 448 48 331 36 1020 75 517 64 441 20 1040 Annealed 75 517 51 352 30 1040 Hot rolled 90 621 60 414 25 1040 Cold drawn 97 669 82 565 16 1040 WOT 700 WQT 900 WOT 1100 WQT 1300 127 876 641 19 1040 118 814 621 22 1040 107 738 600 80 552 24 1040 87 434 32

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Condition #1:
A structural support for a machine is subjected to a static compression load of 20 kN. The support is
manufactured from a circular rod made from SAE 1040 Hot Rolled steel. Specify suitable diameter for the
cross section of the rod based on the basic size.
For condition 1: It was given to you to use SAE1040 hot rolled steel. In the high-stakes project, you select a
different steel for the analysis for condition 1 and determine the basic size
A-10 Typical properties of carbon and alloy steels.
Ultimate strength,s,
Yield strength, s
Percent
elongation
Material SAE no.
Condition
ksi
MPa
MPa
Annealed
Hot rolled
Cold drawn
1020
57
65
75
393
448
517
43
48
296
331
441
36
36
20
1020
1020
64
Annealed
Hot rolled
Cold drawn
WQT 700
WQT 900
WOT 1100
WQT 1300
1040
75
90
517
51
30
25
1040
621
669
876
814
738
414
565
641
621
552
60
1040
97
16
19
22
24
1040
1040
1040
127
118
107
93
90
80
1040
87
600
63
434
32
1080
Annealed
OQT 700
OQT 900
OQT I100
OQT 1300
614
1303
1234
1000
89
54
372
1080
141
129
103
189
972
889
710
12
1080
179
1080
1080
145
17
117
807
70
483
23
1141
Annealed
Cold drawn
87
600
772
51
95
172
129
97
352
655
1186
889
26
1141
112
OQT 700
DQT 900
OQT I100
OQT 1300
1141
193
1331
1141
146
1007
800
1141
116
94
669
20
1141
648
68
469
28
4140
Annealed
OQT 700
OQT 900
OQT I100
OQT 1300
95
655
60
414
26
4140
231
1593
1289
212
1462
1193
903
12
4140
187
173
15
4140
147
1014
131
18
4140
118
814
101
696
23
5160
Annealed
105
724
1813
40
276
17
5160
OQT 700
OQT 900
OQT 1100
OQT 1300
263
238
1641
5160
5160
196
1351
179
1234
12
149
1027
132
910
17
5160
115
793
103
710
23
Other properties are approximately the same for all earbon and alloy steels
Modulus of elasticity in tension 30 000 000 psi (207 GPa).
Modulus of elasticity in shear 11 500 000 psi (80 GPa).
Density 0.283 Ib /in. (7680 kg/m).
OQT means oil quenched and tempered, WQT mecans water quenched and tempered.
Transcribed Image Text:Condition #1: A structural support for a machine is subjected to a static compression load of 20 kN. The support is manufactured from a circular rod made from SAE 1040 Hot Rolled steel. Specify suitable diameter for the cross section of the rod based on the basic size. For condition 1: It was given to you to use SAE1040 hot rolled steel. In the high-stakes project, you select a different steel for the analysis for condition 1 and determine the basic size A-10 Typical properties of carbon and alloy steels. Ultimate strength,s, Yield strength, s Percent elongation Material SAE no. Condition ksi MPa MPa Annealed Hot rolled Cold drawn 1020 57 65 75 393 448 517 43 48 296 331 441 36 36 20 1020 1020 64 Annealed Hot rolled Cold drawn WQT 700 WQT 900 WOT 1100 WQT 1300 1040 75 90 517 51 30 25 1040 621 669 876 814 738 414 565 641 621 552 60 1040 97 16 19 22 24 1040 1040 1040 127 118 107 93 90 80 1040 87 600 63 434 32 1080 Annealed OQT 700 OQT 900 OQT I100 OQT 1300 614 1303 1234 1000 89 54 372 1080 141 129 103 189 972 889 710 12 1080 179 1080 1080 145 17 117 807 70 483 23 1141 Annealed Cold drawn 87 600 772 51 95 172 129 97 352 655 1186 889 26 1141 112 OQT 700 DQT 900 OQT I100 OQT 1300 1141 193 1331 1141 146 1007 800 1141 116 94 669 20 1141 648 68 469 28 4140 Annealed OQT 700 OQT 900 OQT I100 OQT 1300 95 655 60 414 26 4140 231 1593 1289 212 1462 1193 903 12 4140 187 173 15 4140 147 1014 131 18 4140 118 814 101 696 23 5160 Annealed 105 724 1813 40 276 17 5160 OQT 700 OQT 900 OQT 1100 OQT 1300 263 238 1641 5160 5160 196 1351 179 1234 12 149 1027 132 910 17 5160 115 793 103 710 23 Other properties are approximately the same for all earbon and alloy steels Modulus of elasticity in tension 30 000 000 psi (207 GPa). Modulus of elasticity in shear 11 500 000 psi (80 GPa). Density 0.283 Ib /in. (7680 kg/m). OQT means oil quenched and tempered, WQT mecans water quenched and tempered.
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