The megapascal (MPa) is a unit of pressure that is often used in a variety of scientific and engineering calculations, especially in materials science. One fascinating aspect of the megapascal is how it bridges different disciplines, such as geology, where it helps measure the strength of rocks, and civil engineering, where it is crucial for understanding the stress in structures. Interestingly, 1 MPa is equivalent to the pressure exerted by a weight of about 10.2 metric tons on a single square meter, illustrating its significant impact compared to everyday pressures we encounter.
In the realm of meteorology, pressures measured in MPa can indicate catastrophic weather conditions, as atmospheric pressure is usually measured in hectorpascals due to its lower scale. Also noteworthy is the use of MPa in automotive engine performance, where it assesses combustion forces, underlying the importance of this unit in ensuring both vehicle efficiency and safety. Thus, the megapascal is vital across varied fields, reflecting the diverse applications of pressure measurement in modern technology and natural phenomena.
The kilopound per square inch (ksi) is a unit of pressure that is not as commonly encountered as its smaller counterpart, pounds per square inch (psi). However, it plays a crucial role in engineering and materials science, particularly in the United States, where it is often used to express the tensile strength and yield strength of materials like steel. One ksi is equal to 1,000 psi, making it a convenient way to express large values of pressure or stress without cumbersome zeros.
Interestingly, ksi is commonly used in the context of measuring the mechanical properties of metals, especially in aerospace and automotive industries. These are fields where precise and robust materials are essential for safety and performance. For instance, typical structural steel can have a yield strength on the order of 50 ksi, underscoring the immense stress materials can withstand in such applications. Understanding these units helps engineers ensure that the materials used can handle the demanding conditions they face.
Megapascals | Kilopound per square inch |
---|---|
0
MPa
|
0
ksi
|
1
MPa
|
0.145038
ksi
|
2
MPa
|
0.290075
ksi
|
3
MPa
|
0.435113
ksi
|
4
MPa
|
0.580151
ksi
|
5
MPa
|
0.725188
ksi
|
6
MPa
|
0.870226
ksi
|
7
MPa
|
1.01526
ksi
|
8
MPa
|
1.1603
ksi
|
9
MPa
|
1.30534
ksi
|
10
MPa
|
1.45038
ksi
|
11
MPa
|
1.59541
ksi
|
12
MPa
|
1.74045
ksi
|
13
MPa
|
1.88549
ksi
|
14
MPa
|
2.03053
ksi
|
15
MPa
|
2.17557
ksi
|
16
MPa
|
2.3206
ksi
|
17
MPa
|
2.46564
ksi
|
18
MPa
|
2.61068
ksi
|
19
MPa
|
2.75572
ksi
|
20
MPa
|
2.90075
ksi
|
21
MPa
|
3.04579
ksi
|
22
MPa
|
3.19083
ksi
|
23
MPa
|
3.33587
ksi
|
24
MPa
|
3.4809
ksi
|
25
MPa
|
3.62594
ksi
|
26
MPa
|
3.77098
ksi
|
27
MPa
|
3.91602
ksi
|
28
MPa
|
4.06106
ksi
|
29
MPa
|
4.20609
ksi
|
30
MPa
|
4.35113
ksi
|
31
MPa
|
4.49617
ksi
|
32
MPa
|
4.64121
ksi
|
33
MPa
|
4.78624
ksi
|
34
MPa
|
4.93128
ksi
|
35
MPa
|
5.07632
ksi
|
36
MPa
|
5.22136
ksi
|
37
MPa
|
5.36639
ksi
|
38
MPa
|
5.51143
ksi
|
39
MPa
|
5.65647
ksi
|
40
MPa
|
5.80151
ksi
|
41
MPa
|
5.94654
ksi
|
42
MPa
|
6.09158
ksi
|
43
MPa
|
6.23662
ksi
|
44
MPa
|
6.38166
ksi
|
45
MPa
|
6.5267
ksi
|
46
MPa
|
6.67173
ksi
|
47
MPa
|
6.81677
ksi
|
48
MPa
|
6.96181
ksi
|
49
MPa
|
7.10685
ksi
|
50
MPa
|
7.25188
ksi
|
51
MPa
|
7.39692
ksi
|
52
MPa
|
7.54196
ksi
|
53
MPa
|
7.687
ksi
|
54
MPa
|
7.83203
ksi
|
55
MPa
|
7.97707
ksi
|
56
MPa
|
8.12211
ksi
|
57
MPa
|
8.26715
ksi
|
58
MPa
|
8.41219
ksi
|
59
MPa
|
8.55722
ksi
|
60
MPa
|
8.70226
ksi
|
61
MPa
|
8.8473
ksi
|
62
MPa
|
8.99234
ksi
|
63
MPa
|
9.13737
ksi
|
64
MPa
|
9.28241
ksi
|
65
MPa
|
9.42745
ksi
|
66
MPa
|
9.57249
ksi
|
67
MPa
|
9.71752
ksi
|
68
MPa
|
9.86256
ksi
|
69
MPa
|
10.0076
ksi
|
70
MPa
|
10.15264
ksi
|
71
MPa
|
10.29768
ksi
|
72
MPa
|
10.44271
ksi
|
73
MPa
|
10.58775
ksi
|
74
MPa
|
10.73279
ksi
|
75
MPa
|
10.87783
ksi
|
76
MPa
|
11.02286
ksi
|
77
MPa
|
11.1679
ksi
|
78
MPa
|
11.31294
ksi
|
79
MPa
|
11.45798
ksi
|
80
MPa
|
11.60301
ksi
|
81
MPa
|
11.74805
ksi
|
82
MPa
|
11.89309
ksi
|
83
MPa
|
12.03813
ksi
|
84
MPa
|
12.18317
ksi
|
85
MPa
|
12.3282
ksi
|
86
MPa
|
12.47324
ksi
|
87
MPa
|
12.61828
ksi
|
88
MPa
|
12.76332
ksi
|
89
MPa
|
12.90835
ksi
|
90
MPa
|
13.05339
ksi
|
91
MPa
|
13.19843
ksi
|
92
MPa
|
13.34347
ksi
|
93
MPa
|
13.4885
ksi
|
94
MPa
|
13.63354
ksi
|
95
MPa
|
13.77858
ksi
|
96
MPa
|
13.92362
ksi
|
97
MPa
|
14.06866
ksi
|
98
MPa
|
14.21369
ksi
|
99
MPa
|
14.35873
ksi
|
100
MPa
|
14.50377
ksi
|
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