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 Pascal, named after the French mathematician and physicist Blaise Pascal, is the SI unit of pressure. It is equivalent to one newton per square meter, symbolized as Pa. Despite its relatively recent introduction in 1971, the Pascal honors the pioneering work of Pascal in fluid mechanics and pressure, such as Pascal’s Law, which explains how pressure applied to a confined fluid is transmitted undiminished in all directions. Interestingly, a single Pascal is a tiny unit of pressure, roughly equal to the pressure exerted by a dollar bill resting flat on a table. This illustrates why everyday atmospheric pressure is typically measured in kilopascals (kPa), as one standard atmosphere is about 101.3 kPa.
Kilopound per square inch | Pascals |
---|---|
0
ksi
|
0
Pa
|
0.1
ksi
|
689476.00005
Pa
|
0.2
ksi
|
1378952.00009
Pa
|
0.3
ksi
|
2068428.00014
Pa
|
0.4
ksi
|
2757904.00018
Pa
|
0.5
ksi
|
3447380.00023
Pa
|
0.6
ksi
|
4136856.00027
Pa
|
0.7
ksi
|
4826332.00032
Pa
|
0.8
ksi
|
5515808.00036
Pa
|
0.9
ksi
|
6205284.00041
Pa
|
1
ksi
|
6894760.00045
Pa
|
1.1
ksi
|
7584236.0005
Pa
|
1.2
ksi
|
8273712.00054
Pa
|
1.3
ksi
|
8963188.00059
Pa
|
1.4
ksi
|
9652664.00063
Pa
|
1.5
ksi
|
1.03421e+7
Pa
|
1.6
ksi
|
1.10316e+7
Pa
|
1.7
ksi
|
1.17211e+7
Pa
|
1.8
ksi
|
1.24106e+7
Pa
|
1.9
ksi
|
1.31e+7
Pa
|
2
ksi
|
1.37895e+7
Pa
|
2.1
ksi
|
1.4479e+7
Pa
|
2.2
ksi
|
1.51685e+7
Pa
|
2.3
ksi
|
1.58579e+7
Pa
|
2.4
ksi
|
1.65474e+7
Pa
|
2.5
ksi
|
1.72369e+7
Pa
|
2.6
ksi
|
1.79264e+7
Pa
|
2.7
ksi
|
1.86159e+7
Pa
|
2.8
ksi
|
1.93053e+7
Pa
|
2.9
ksi
|
1.99948e+7
Pa
|
3
ksi
|
2.06843e+7
Pa
|
3.1
ksi
|
2.13738e+7
Pa
|
3.2
ksi
|
2.20632e+7
Pa
|
3.3
ksi
|
2.27527e+7
Pa
|
3.4
ksi
|
2.34422e+7
Pa
|
3.5
ksi
|
2.41317e+7
Pa
|
3.6
ksi
|
2.48211e+7
Pa
|
3.7
ksi
|
2.55106e+7
Pa
|
3.8
ksi
|
2.62001e+7
Pa
|
3.9
ksi
|
2.68896e+7
Pa
|
4
ksi
|
2.7579e+7
Pa
|
4.1
ksi
|
2.82685e+7
Pa
|
4.2
ksi
|
2.8958e+7
Pa
|
4.3
ksi
|
2.96475e+7
Pa
|
4.4
ksi
|
3.03369e+7
Pa
|
4.5
ksi
|
3.10264e+7
Pa
|
4.6
ksi
|
3.17159e+7
Pa
|
4.7
ksi
|
3.24054e+7
Pa
|
4.8
ksi
|
3.30948e+7
Pa
|
4.9
ksi
|
3.37843e+7
Pa
|
5
ksi
|
3.44738e+7
Pa
|
5.1
ksi
|
3.51633e+7
Pa
|
5.2
ksi
|
3.58528e+7
Pa
|
5.3
ksi
|
3.65422e+7
Pa
|
5.4
ksi
|
3.72317e+7
Pa
|
5.5
ksi
|
3.79212e+7
Pa
|
5.6
ksi
|
3.86107e+7
Pa
|
5.7
ksi
|
3.93001e+7
Pa
|
5.8
ksi
|
3.99896e+7
Pa
|
5.9
ksi
|
4.06791e+7
Pa
|
6
ksi
|
4.13686e+7
Pa
|
6.1
ksi
|
4.2058e+7
Pa
|
6.2
ksi
|
4.27475e+7
Pa
|
6.3
ksi
|
4.3437e+7
Pa
|
6.4
ksi
|
4.41265e+7
Pa
|
6.5
ksi
|
4.48159e+7
Pa
|
6.6
ksi
|
4.55054e+7
Pa
|
6.7
ksi
|
4.61949e+7
Pa
|
6.8
ksi
|
4.68844e+7
Pa
|
6.9
ksi
|
4.75738e+7
Pa
|
7
ksi
|
4.82633e+7
Pa
|
7.1
ksi
|
4.89528e+7
Pa
|
7.2
ksi
|
4.96423e+7
Pa
|
7.3
ksi
|
5.03317e+7
Pa
|
7.4
ksi
|
5.10212e+7
Pa
|
7.5
ksi
|
5.17107e+7
Pa
|
7.6
ksi
|
5.24002e+7
Pa
|
7.7
ksi
|
5.30897e+7
Pa
|
7.8
ksi
|
5.37791e+7
Pa
|
7.9
ksi
|
5.44686e+7
Pa
|
8
ksi
|
5.51581e+7
Pa
|
8.1
ksi
|
5.58476e+7
Pa
|
8.2
ksi
|
5.6537e+7
Pa
|
8.3
ksi
|
5.72265e+7
Pa
|
8.4
ksi
|
5.7916e+7
Pa
|
8.5
ksi
|
5.86055e+7
Pa
|
8.6
ksi
|
5.92949e+7
Pa
|
8.7
ksi
|
5.99844e+7
Pa
|
8.8
ksi
|
6.06739e+7
Pa
|
8.9
ksi
|
6.13634e+7
Pa
|
9
ksi
|
6.20528e+7
Pa
|
9.1
ksi
|
6.27423e+7
Pa
|
9.2
ksi
|
6.34318e+7
Pa
|
9.3
ksi
|
6.41213e+7
Pa
|
9.4
ksi
|
6.48107e+7
Pa
|
9.5
ksi
|
6.55002e+7
Pa
|
9.6
ksi
|
6.61897e+7
Pa
|
9.7
ksi
|
6.68792e+7
Pa
|
9.8
ksi
|
6.75686e+7
Pa
|
9.9
ksi
|
6.82581e+7
Pa
|
10
ksi
|
6.89476e+7
Pa
|
If you like the website, share it on social media.