4.2.4 CONCRETE REINFORCING BAR DATA
Table 8 — ASTM basic dimensions for deformed steel bars for concrete reinforcement , Imperial units
Bar designation No . 1
Nominal weight lb / ft
Diameter in .
Nominal dimensions 2 Area in 2
Perimeter in .
3 0.376 0.375 0.11 1.178 4 0.668 0.500 0.20 1.571 5 1.043 0.625 0.31 1.963 6 1.502 0.750 0.44 2.356 7 2.044 0.875 0.60 2.749 8 2.670 1.000 0.79 3.142 9 3.400 1.128 1.00 3.544 10 4.303 1.270 1.27 3.990 11 5.313 1.410 1.56 4.430 14 7.65 1.693 2.25 5.32 18 13.60 2.257 4.00 7.09
1 Bar designation numbers are based on the number of eighths of an inch included in the nominal diameter . 2 The nominal dimensions of a deformed bar are approximate , being shown as equivalent to those of a plain round bar having the same weight per foot as the deformed bar .
Table 9 — ASTM basic dimensions for deformed steel bars for concrete reinforcement , SI units
Bar designation No . 1
Nominal mass kg / m
Diameter mm
Nominal dimensions 2 Area mm 2
Perimeter mm
10 0.560 9.5 71 29.9 13 0.994 12.7 129 39.9 16 1.552 15.9 199 49.9 19 2.235 19.1 284 59.8 22 3.042 22.2 387 69.8 25 3.973 25.4 510 79.8 29 5.060 28.7 645 90.0 32 6.404 32.3 819 101.3 36 7.907 35.8 1006 112.5 43 11.38 43.0 1452 135.1 57 20.24 57.3 2581 180.0
1 Bar designation numbers approximate the number of millimeters of the nominal diameter of the bar . 2 The nominal dimensions of a deformed bar are approximate , being shown as equivalent to those of a plain round bar having the same mass per meter as the deformed bar .
Table 10 — CSA G30.12 & G30.16 basic dimensions for deformed steel bars for concrete reinforcement , SI units ( Canada only )
Bar number 1
Nominal mass kg / m
Diameter mm
Nominal dimensions 2 Area mm 2
Perimeter mm
10M 0.785 11.3 100 36 15M 1.570 16.00 200 50 20M 2.355 19.5 300 61 25M 3.925 25.2 500 79 30M 5.495 29.9 700 94 35M 7.850 35.7 1000 112 45M 11.775 43.7 1500 137 55M 19.625 56.4 2500 177
1 Bar numbers are based on the rounded off nominal diameter of the bars . 2 Nominal dimensions are equivalent to those of a plain round bar having the same mass per meter as the deformed bar .
492 Anchor Fastening Technical Guide Edition 22 | 4.0 REFERENCE | 4.3 TECHNICAL REFERENCES Hilti , Inc . 1-800-879-8000 | en español 1-800-879-5000 | www . hilti . com | Hilti ( Canada ) Corporation | www . hilti . ca | 1-800-363-4458