Convert Kilopounds per Square Inch to Torr
Convert Kilopounds per Square Inch (ksi) to Torr (Torr) instantly and accurately.
Conversion Formula
Torr = ksi × 51714.93257
About Kilopounds per Square Inch
One ksi (kilopound per square inch) = 1,000 psi ≈ 6.895 MPa - the standard engineering stress unit in the US. ASTM A36 structural steel: 36 ksi yield, 58-80 ksi tensile. ASTM A325 high-strength bolts: 92 ksi proof load. AISC steel construction tables, FAA/MIL-SPEC aerospace allowables, and ASME Section VIII pressure vessel design all use ksi. Fracture toughness (K_IC) for steels: 50-200 ksi·√in. Convenient because it keeps large structural stresses as manageable 3-digit numbers. 1 ksi = 6.895 MPa.
About Torr
The torr is defined as exactly 1/760 of a standard atmosphere ≈ 133.322 Pa - effectively replacing mmHg with an exact definition. Named after Evangelista Torricelli (1608-1647), inventor of the barometer. Vacuum science universally uses torr: rough vacuum 760-1 torr; medium vacuum 1-10⁻³ torr; high vacuum 10⁻³-10⁻⁷ torr; ultra-high vacuum below 10⁻⁹ torr. UHV systems for surface science, particle accelerator beam tubes, and space simulation chambers reach 10⁻¹¹-10⁻¹² torr. 1 torr = 133.322 Pa.
Quick Reference Table
| Kilopounds per Square Inch (ksi) | Torr (Torr) |
|---|---|
| 1 ksi | 51714.9 Torr |
| 2 ksi | 103430 Torr |
| 5 ksi | 258575 Torr |
| 10 ksi | 517149 Torr |
| 25 ksi | 1292870 Torr |
| 50 ksi | 2585750 Torr |
| 100 ksi | 5171490 Torr |