Units of measurement
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Pounds per square inch (psi)
Kilopounds per square inch (ksi)
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Pounds per square inch (psi)
Pound per square inch (psi) — a unit of pressure based on pounds of force applied per square inch. Primarily used in the USA and UK.
Kilopounds per square inch (ksi)
Kilopound per square inch (ksi) — a unit of pressure equal to 1000 pounds per square inch. Used for measuring high pressures in construction and engineering.