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Grade 75/80 All-Thread Rebar

Threaded
Bar Types
Grade 75
Information
Grade 75
Accessories
Case
Histories
Corrosion
Protection
Grade 75 All-Thread Rebar
Structural Properties
Minimum Yield Ultimate Tensile
75 KSI
(517 MPa)
100 KSI
(689 MPa)
Typical Elongation in 8" bar
7%-9%
Grade 75 All-Thread Rebar
Unique Thread Form
R61 Grade 75/80 All-Thread Rebar - ASTM A615 *
Bar Designation
Nominal Diameter
& Pitch
Minimum
Net Area
Thru Threads
Grade 75 Grade 80 Nominal
Weight
Approx.
Thread
Major Dia.
Part
Number
Minimum
Ultimate
Strength
Minimum
Yield
Strength
Minimum
Ultimate
Strength
Minimum
Yield
Strength
#6 - 3/4" - 5
(19 mm)
0.44 in2
(284 mm2)
44 kips
(196 kN)
33 kips
(147 kN)
46 kips
(205 kN)
35 kips
(156 kN)
1.5 lbs./ft.
(2.36 Kg/M)
7/8"
(22 mm)
R61-06
#7 - 7/8" - 5
(22 mm)
0.60 in2
(387 mm2)
60 kips
(267 kN)

45 kips
(200 kN)

63 kips
(280 kN)

48 kips
(214 kN)

2.0 lbs./ft.
(3.04 Kg/M)
1"
(25 mm)
R61-07
#8 - 1" - 3-1/2
(25 mm)
0.79 in2
(510 mm2)
79 kips
(351 kN)
59 kips
(264 kN)
83 kips
(369 kN)
63 kips
(280 kN)
2.7 lbs./ft.
(3.94 Kg/M)
1-1/8"
(29 mm)
R61-08
#9 - 1-1/8" - 3-1/2
(29 mm)
1.00 in2
(645 mm2)
100 kips
(445 kN)
75 kips
(334 kN)
105 kips
(467 kN)
80 kips
(265 kN)
3.4 lbs./ft.
(5.06 Kg/M)
1-1/4"
(32 mm)
R61-09
#10 - 1-1/4" - 3
(32 mm)
1.27 in2
(819 mm2)
127 kips
(565 kN)
95 kips
(424 kN)
133 kips
(592 kN)
102 kips
(454 kN)
4.3 lbs./ft.
(5.50 Kg/M)
1-3/8"
(35 mm)
R61-10
#11 - 1-3/8" - 3
(36 mm)
1.56 in2
(1006 mm2)
156 kips
(694 kN)
117 kips
(521 kN)
164 kips
(730 kN)
125 kips
(556 kN)
5.3 lbs./ft.
(7.85 Kg/M)
1-1/2"
(38 mm)
R61-11
#14 - 1-3/4" - 3
(43 mm)
2.25 in2
(1452 mm2)
225 kips
(1001 kN)
169 kips
(750 kN)
236 kips
(1050 kN)
180 kips
(801 kN)
7.65 lbs./ft.
(11.8 Kg/M)
1-7/8"
(48 mm)
R61-14
#18 - 2-1/4" - 3
(57 mm)
4.00 in2
(2581 mm2)
400 kips
(1780 kN)
300 kips
(1335 kN)
420 kips
(1868 kN)
320 kips
(1423 kN)

13.6 lbs./ft.
(19.6 Kg/M)

2-7/16"
(62 mm)
R61-18
#20 - 2-1/2" - 2-3/4
(64 mm)
4.91 in2
(3168 mm2)
491 kips
(2184 kN)
368 kips
(1637 kN)
516 kips
(2295 kN)
393 kips
(1748 kN)
16.7 lbs./ft.
(24.8 Kg/M)
2-3/4"
(70 mm)
R61-20
#24 - 3" - 2-3/4
(76 mm)

6.82 in2
(4400 mm2)

682 kips
(3034 kN)

511 kips
(2273 kN)

716 kips
(3185 kN)

546 kips
(2429 kN)

24.0 lbs./ft.
(35.8 Kg/M)

3-3/16"
(81 mm)

R61-24

#28 - 3-1/2" - 2-3/4
(89 mm) *

9.61 in2
(6200 mm2)

961 kips
(4274 kN)

720 kips
(3206 kN)

1009 kips
(4488 kN)

769 kips
(33421 kN)

32.7 lbs./ft.
(48.6 Kg/M)

3-3/4"
(95 mm)

R61-28

* The #24 and #28 diameter bars are not covered under ASTM A615.

Sizes
All-Thread Rebar is available in 11 diameters from #6 (20 mm) through #28 (89 mm). Most diameters are available in continuous lengths up to 50’ (15.2 m).
Threads
Williams Grade 75/80 All-Thread Rebar has a cold rolled, continuous, rounded course thread form. Because of the full 360º concentric thread form, Williams All-Thread Rebar should only be bent under special provisions. Williams special thread (deformation) pattern projects ultra high relative rib area at 3 times that of conventional rebar. This provides for superior bond performance in concrete. Threads are available in both right and left hand. Grades up to 100 are available upon request.
Welding
Welding of All-Thread Rebar should be approached with caution since no specific provisions have been included to enhance its weldability. Refer to ANSI/AWS D1.4 for proper selections and procedures.
Williams Form Engineering Corp.
Threaded
Bar Types
Grade 75
Information
Grade 75
Accessories
Case
Histories
Corrosion
Protection
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