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.
The torr is a unit of pressure named after the Italian physicist Evangelista Torricelli, who invented the barometer in the 17th century. It is defined as 1/760th of an atmosphere, approximating the pressure exerted by a one-millimeter column of mercury at 0 degrees Celsius. What makes the torr particularly interesting is its practical use in fields like vacuum technology and weather forecasting, where precise measurements of atmospheric pressure are crucial.
The legacy of Torricelli’s work is integral to meteorology and physics, as it opened paths for understanding atmospheric pressure. Beyond scientific circles, the torr is a reminder of human ingenuity in unraveling atmospheric mysteries and continues to play a vital role in today’s scientific advancements.
Kilopound per square inch | Torr |
---|---|
0
ksi
|
0
torr
|
0.1
ksi
|
5171.49529
torr
|
0.2
ksi
|
10342.99058
torr
|
0.3
ksi
|
15514.48586
torr
|
0.4
ksi
|
20685.98115
torr
|
0.5
ksi
|
25857.47644
torr
|
0.6
ksi
|
31028.97173
torr
|
0.7
ksi
|
36200.46701
torr
|
0.8
ksi
|
41371.9623
torr
|
0.9
ksi
|
46543.45759
torr
|
1
ksi
|
51714.95288
torr
|
1.1
ksi
|
56886.44817
torr
|
1.2
ksi
|
62057.94345
torr
|
1.3
ksi
|
67229.43874
torr
|
1.4
ksi
|
72400.93403
torr
|
1.5
ksi
|
77572.42932
torr
|
1.6
ksi
|
82743.9246
torr
|
1.7
ksi
|
87915.41989
torr
|
1.8
ksi
|
93086.91518
torr
|
1.9
ksi
|
98258.41047
torr
|
2
ksi
|
103429.90576
torr
|
2.1
ksi
|
108601.40104
torr
|
2.2
ksi
|
113772.89633
torr
|
2.3
ksi
|
118944.39162
torr
|
2.4
ksi
|
124115.88691
torr
|
2.5
ksi
|
129287.38219
torr
|
2.6
ksi
|
134458.87748
torr
|
2.7
ksi
|
139630.37277
torr
|
2.8
ksi
|
144801.86806
torr
|
2.9
ksi
|
149973.36335
torr
|
3
ksi
|
155144.85863
torr
|
3.1
ksi
|
160316.35392
torr
|
3.2
ksi
|
165487.84921
torr
|
3.3
ksi
|
170659.3445
torr
|
3.4
ksi
|
175830.83978
torr
|
3.5
ksi
|
181002.33507
torr
|
3.6
ksi
|
186173.83036
torr
|
3.7
ksi
|
191345.32565
torr
|
3.8
ksi
|
196516.82094
torr
|
3.9
ksi
|
201688.31622
torr
|
4
ksi
|
206859.81151
torr
|
4.1
ksi
|
212031.3068
torr
|
4.2
ksi
|
217202.80209
torr
|
4.3
ksi
|
222374.29737
torr
|
4.4
ksi
|
227545.79266
torr
|
4.5
ksi
|
232717.28795
torr
|
4.6
ksi
|
237888.78324
torr
|
4.7
ksi
|
243060.27853
torr
|
4.8
ksi
|
248231.77381
torr
|
4.9
ksi
|
253403.2691
torr
|
5
ksi
|
258574.76439
torr
|
5.1
ksi
|
263746.25968
torr
|
5.2
ksi
|
268917.75496
torr
|
5.3
ksi
|
274089.25025
torr
|
5.4
ksi
|
279260.74554
torr
|
5.5
ksi
|
284432.24083
torr
|
5.6
ksi
|
289603.73612
torr
|
5.7
ksi
|
294775.2314
torr
|
5.8
ksi
|
299946.72669
torr
|
5.9
ksi
|
305118.22198
torr
|
6
ksi
|
310289.71727
torr
|
6.1
ksi
|
315461.21255
torr
|
6.2
ksi
|
320632.70784
torr
|
6.3
ksi
|
325804.20313
torr
|
6.4
ksi
|
330975.69842
torr
|
6.5
ksi
|
336147.19371
torr
|
6.6
ksi
|
341318.68899
torr
|
6.7
ksi
|
346490.18428
torr
|
6.8
ksi
|
351661.67957
torr
|
6.9
ksi
|
356833.17486
torr
|
7
ksi
|
362004.67014
torr
|
7.1
ksi
|
367176.16543
torr
|
7.2
ksi
|
372347.66072
torr
|
7.3
ksi
|
377519.15601
torr
|
7.4
ksi
|
382690.6513
torr
|
7.5
ksi
|
387862.14658
torr
|
7.6
ksi
|
393033.64187
torr
|
7.7
ksi
|
398205.13716
torr
|
7.8
ksi
|
403376.63245
torr
|
7.9
ksi
|
408548.12773
torr
|
8
ksi
|
413719.62302
torr
|
8.1
ksi
|
418891.11831
torr
|
8.2
ksi
|
424062.6136
torr
|
8.3
ksi
|
429234.10889
torr
|
8.4
ksi
|
434405.60417
torr
|
8.5
ksi
|
439577.09946
torr
|
8.6
ksi
|
444748.59475
torr
|
8.7
ksi
|
449920.09004
torr
|
8.8
ksi
|
455091.58532
torr
|
8.9
ksi
|
460263.08061
torr
|
9
ksi
|
465434.5759
torr
|
9.1
ksi
|
470606.07119
torr
|
9.2
ksi
|
475777.56648
torr
|
9.3
ksi
|
480949.06176
torr
|
9.4
ksi
|
486120.55705
torr
|
9.5
ksi
|
491292.05234
torr
|
9.6
ksi
|
496463.54763
torr
|
9.7
ksi
|
501635.04291
torr
|
9.8
ksi
|
506806.5382
torr
|
9.9
ksi
|
511978.03349
torr
|
10
ksi
|
517149.52878
torr
|
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