ASTM 615 :

Parameters Specified by ASTM 615

Table 1: Deformed Bars Designation Numbers, Nominal Weight [Masses], Nominal Dimensions and Deformation Requirements.

Bar Designation
No

Nominal Weight
lb/ft

Nominal Dimensions Deformation Requirements, in [Mm]
Nomina Mass
Kg/m]
Diameter in
[mm]
Cross Sectional
Area in
[mm]
Perimeter, in.
[mm]
Maximum Average Spacing Minimum Average Height Maximum Gap (Chord of 12.5 % of Nominal Perimeter)
3 [10] 0.376 [0.560] 0.375 [9.5] 0.11 [71] 1.178 [29.9] 0.262 [6.7] 0.015 [0.38] 0.143 [3.6]
4 [13] 0.668 [0.994] 0.500 [12.7] 0.20 [129] 1.571 [39.9] 0.350 [8.9] 0.020 [0.51] 0.191 [4.9]
5 [16] 1.043 [1.522] 0.625 [15.9] 0.31 [199] 1.963 [49.9] 0.437 [11.1] 0.028 [0.71] 0.239 [6.1]
6 [19] 1.502 [2.235] 0.750 [19.1] 0.44 [284] 2.356 [59.8] 0.525 [13.3] 0.038 [0.97] 0.286 [7.3]
7 [22] 2.044 [3.042] 0.875 [22.2] 0.60 [387] 2.749 [69.8] 0.612 [15.5] 0.044 [1.12] 0.334 [8.5]
8 [25] 2.670 [3.973] 1.000 [25.4] 0.79 [510] 3.142 [79.8] 0.700 [17.8] 0.050 [1.27] 0.383 [9.7]
9 [29] 3.400 [5.060] 1.128 [28.7] 1.00 [645] 3.544 [90] 0.790 [20.1] 0.056 [1.42] 0.431 [10.9]
10 [32] 4.303 [6.404] 1.270 [32.3] 1.27 [819] 3.99 [101.3] 0.889 [22.6] 0.064 [1.63] 0.487 [12.4]
11 [36] 5.313 [7.970] 1.410 [35.8] 1.56 [1006] 4.43 [1125] 0.987 [25.1] 0.071 [1.8] 0.540 [13.7]
14 [43] 7.60 [110380] 1.693 [43.0] 2.25 [1452] 5.32 [135.1] 1.185 [30.1] 0.085 [2.16] 0.648 [16.5]
18 [57] 13.6 [20.240] 2.257 [57.3] 4.00 [2581] 7.09 [180.1] 1.580 [40.1] 0.102 [2.59] 0.864 [21.9]

A . Bar number are based on the number of eights of an inch included in the nominal diameter of the bars [Bar numbers approximate the number of millimeters of the nominal diameter of the bar]

B . The nominal dimensions of a deformed bars are equivalent to those of a plain round bar having the same weight [mss] per foot [meter] ad the deformed bar.

Tabe 2 : Tensile Requirements

  Grade 40 [300] Grade 60 [420] Grate 75 [520]
Tensile Strength, min, psi [Mpa] 70000 [500] 90 000 [620] 100 000 [690]
Yield Strength, min, Psi [Mpa] 40 000 [300] 60 000 [420] 75 000 [520]
Elongation in 8 in [203.0mm], min %:  
Bar Designation Number
3 [10] 11 9 ...
4, 5 [13, 16] 12 9 ...
6 [19] 12 9 7
7, 8 [22, 25] ... 8 7
9, 10, 11 [29, 32, 36] ... 7 6
14, 18 [43, 57] ... 7 6

A . Grade 40 [300] bars are furnished only in sizes 3 through 6 [10 through 19]

B . Grade 75 [520 bars are furnished only in sizes 6 through 18 [19 through 57]

Table 3 : Bend Test Requirements

Bar Designation Number Pin Diameter for Bend Tests
Grade 40 [300] Grade 60 [420] Grade 75 [520]
3,4,5 [10, 13, 16] d d ...
6 [19] 5d 5d 5d
7, 8 [22, 25] ... 5d 5d
9, 10, 11 [29, 32, 36] ... 7d 7d
14, 18 [43,57] (90) ... 9d 9d