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ASTM 615 & 706 Standards

ASTM A-615 Specifications: - Parameters Specified by ASTM 615       
Table 1: Deformed Bars Designation Numbers, Nominal Weights [Masses], Nominal Dimensions and Deformation Requirements
Bar DesignationNominal WeightNominal DimensionsDeformation Requirements, in [Mm]
Nolb/ft
Nominal MassDiameter inCross SectionalPerimeter, in.Maximum Average SpacingMinimum Average HeightMaximum Gap (Chord of 12.5 % of Nominal Perimeter)
Kg/m][mm]Area in[mm]
[mm]
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]

Specifications of Grade 40 & Grade 60 Steel Bars:

Table 2: Tensile Requirements     
Grade 40 [280]Grade 60 [420]
Tensile Strength, min, psi [Mpa]60 000 [420]90 000 [620]
Yield Strength, min, Psi [Mpa]40 000 [280]60 000 [420]
Elongation in 8 in [203.0mm], min %:
Bar Designation Number
3 [10]119
4, 5 [13, 16]129
6 [19]129
7, 8 [22, 25]…8
9, 10, 11 [29, 32, 36]…7
Table 3: Bend Test
Bar Designation NumberPin Diameter for Bend Tests
Grade 40 [300]Grade 60 [420]
3,4,5 [10, 13, 16]3½ d3½ d
6 [19]5d5d
7, 8 [22, 25]…5d
9, 10, 11 [29, 32, 36]…7d

ASTM A-706: – Parameters Specified by ASTM 706       
Table 1: Deformed Bars Designation Numbers, Nominal Weights [Masses], Nominal Dimensions and Deformation Requirements
Bar DesignationNominal WeightNominal DimensionsDeformation Requirements, in [Mm]
Nolb/ft
Nominal MassDiameter inCross SectionalPerimeter, in.Maximum Average SpacingMinimum Average HeightMaximum Gap (Chord of 12.5 % of Nominal Perimeter)
Kg/m][mm]Area in[mm]
[mm]
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]

Table 2: Tensile Requirements 
Grade 60 [420]
Tensile Strength, min, psi [Mpa]80 000 [550]
Yield Strength, min, Psi [Mpa]60 000 [420]
Yield Strength, max, Psi [Mpa]78 000 [540]
Elongation in 8 in [203.2 mm], min %:
Bar Designation Number
3, 4, 5, 6 [10, 13, 16, 19]14
7, 8, 9, 10, 11 [22, 25, 29, 32, 36]12

Table 3: Bend Test Requirements 
Bar Designation NumberPin Diameter for Bend Tests
Grade 60 [420]
3,4,5 [10, 13, 16]3½ d
6,7,8 [19,22,25]5d
9, 10, 11 [29, 32, 36]6d

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