1 English/Metric Tensile Strength/Yield Strength Conversion Chart Pounds per square inch (psi) to kilopascals (kPa) Thousand pounds per square inch (ksi) to megapascals (MPa) 0 1 2 3 4 5 6 7 8 9 psi kPa (kN/m2) ksi MPa (MN/m2) 0 0.0000 6.8948 13.7895 20.6843 27.5790 34.4738 41.3685 48.2633 55.1581 62.0528 10 68.9476 75.8423 82.7371 89.6318 96.5266 103.4214 110.3161 117.2109 124.1056 131.0004 20 137.8951 144.7899 151.6847 158.5794 165.4742 172.3689 179.2637 186.1584 193.0532 199.9480 30 206.8427 213.7375 220.6322 227.5270 234.4217 241.3165 248.2113 255.1060 262.0008 268.8955 40 275.7903 282.6850 289.5798 296.4746 303.3693 310.2641 317.1588 324.0536 330.9483 337.8431 50 344.7379 351.6326 358.5274 365.4221 372.3169 379.2116 386.1064 393.0012 399.8959 406.7907 60 413.6854 420.5802 427.4749 434.3697 441.2645 448.1592 455.0540 461.9487 468.8435 475.7382 70 482.6330 489.5278 496.4225 503.3173 510.2120 517.1068 524.0015 530.8963 537.7911 544.6858 80 551.5806 558.4753 565.3701 572.2648 579.1596 586.0544 592.9491 599.8439 606.7386 613.6334 90 620.5281 627.4229 634.3177 641.2124 648.1072 655.0019 661.8967 668.7914 675.6862 682.5810 100 689.4757 Conversion Formulas:        psi x .00689512 = MPa         MPa x 145.04 = psi        ksi x 6.89512 = MPa        MPa x .14504 = ksi
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