CONSTRUCTION UNIT CONVERTER · FIELD TOOL
psi = MPa × 145.04. 30 MPa concrete is 4,351 psi; 28 MPa is about 4,000 psi; Grade 420 rebar (420 MPa) is 60,900 psi ≈ Grade 60. 1 MPa is the same as 1 N/mm².
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| ksi | 4.35113 |
| kgf/cm² | 305.915 |
| bar | 300 |
| kPa (kN/m²) | 30,000 |
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psi = MPa × 145.038 ksi = MPa × 0.145038 kgf/cm² = MPa × 10.19730 MPa × 145.038 = 4,351 psi (4.35 ksi, 306 kgf/cm²).
| MPa | psi |
|---|---|
| 20 | 2,901 |
| 25 | 3,626 |
| 28 | 4,061 |
| 30 | 4,351 |
| 35 | 5,076 |
| 40 | 5,801 |
| 50 | 7,252 |
| MPa | psi | Common grade |
|---|---|---|
| 250 | 36,260 | Mild steel / Fe250 |
| 415 | 60,190 | Fe415 |
| 420 | 60,920 | Grade 420 ≈ Grade 60 |
| 500 | 72,520 | Fe500, B500 |
145.04 psi.
27.6 MPa, usually specified as 28 MPa in metric.
Yes. 1 N/mm² = 1 MPa = 1,000 kPa = 10.2 kgf/cm².