12 mm Reinforcing Bar - EN / Eurocode
12 mm is a EN / Eurocode reinforcing bar to EN 10080 / EN 1992-1-1. Its nominal diameter is 12 mm, giving a cross-section area As of 113.1 mm² and a mass of 0.888 kg/m. It is supplied in grade B500A / B500B / B500C with characteristic yield f_yk = 500 MPa. The tables below give the total steel area for 1-10 bars and the area per metre of width at common bar spacings.
Bar properties
| d | Nominal diameter | 12 mm |
| As | Cross-section area | 113.1 mm² |
| m | Mass per metre | 0.888 kg/m |
| u | Nominal perimeter | 37.7 mm |
| f_yk | Characteristic yield | 500 MPa |
Total area for n bars (As = n × 113.1 mm²)
| Bars | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|---|---|---|
| As (mm²) | 113 | 226 | 339 | 452 | 566 | 679 | 792 | 905 | 1,018 | 1,131 |
Area per metre at spacing (As/m = 1000/s × 113.1 mm²)
| s (mm) | 75 | 100 | 125 | 150 | 175 | 200 | 250 | 300 |
|---|---|---|---|---|---|---|---|---|
| As/m (mm²/m) | 1,508 | 1,131 | 905 | 754 | 646 | 566 | 452 | 377 |
Source: EN 10080 / EN 1992-1-1. Area = π/4 × d² for metric bars; ASTM areas are the standard's tabulated nominal values. Grades available: B500A, B500B, B500C.
Other EN / Eurocode bar sizes
Rate thisNo ratings yet
Sign in to join the discussion.
Loading…