Scope

ASTM A615 covers deformed and plain carbon steel bars for concrete reinforcement.  This specification covers bars and coils in four grades, Grade 40, Grade 60, Grade 75, and Grade 80. The grade designates the yield strength of the material, i.e. Grade 60 has a 60ksi minimum yield.

A615 Designation Numbers

Bar No.

Nominal Diameter

3

0.375”

4

0.500”

5

0.625”

6

0.750”

7

0.875”

8

1.000”

9

1.128”

10

1.270”

11

1.410”

14

1.693”

18

2.257”

A615 Mechanical Requirements

Grade 40

Grade 60

Grade 75

Grade 80

Tensile, ksi

60

90

100

105

Yield, ksi

40

60

75

80

Elongation in 8”

Bar size #3

11

9

7

7

4,5,6

12

9

7

7

7,8

-

8

7

7

9 thru 18

-

7

6

6

A615 Bend Test Requirements

Bar Designation#

Pin Dia. Grade 40

Pin Dia, Grade 60

Pin Dia, Grade 75

Pin Dia, Grade 80

3,4,5

3-1/2d

3-1/2d

5d

5d

6

5d

5d

5d

5d

7,8

5d

5d

5d

9,10,11

7d

7d

7d

14,18

9d

9d

9d

Weldability

Welding this material should be approached with caution since no specific provisions have been included to enhance weldability. If weldable rebar is required, rebar per ASTM A706 should be considered.