All About Rebar
Ernest Maier stocks Grade 60 Domestic Rebar, purchased in 20 foot lengths, in sizes #3, 4, 5, 6, 7, and 8. Per request, we can cut rebar from sizes #3 – #6.
Nomenclature
“Imperial” bar designations represent the bar diameter in fractions of an eighth (1/8) of an inch, such that #8 = 8/8 inch = 1 inch diameter.
Area = (bar size/9)2 such that area of #8 = (8/9)2 = 0.79 in2. This applies to #8 bars and smaller. Larger bars have a slightly larger diameter than the one computed using the 1/8 inch convention.
Imperial Bar Size | “Soft” Metric Size | Weight per unit length (lb/ft) | Mass per unit length (kg/m) | Nominal Diameter (in) | Nominal Diameter (mm) | Nominal Area (in2) | Nominal Area (mm2) |
---|---|---|---|---|---|---|---|
#3 | #10 | 0.376 | 0.561 | 0.375 = 3/8 | 9.525 | 0.11 | 71 |
#4 | #13 | 0.668 | 0.996 | 0.500 = 1/2 | 12.700 | 0.20 | 129 |
#5 | #16 | 1.043 | 1.556 | 0.625 = 5/8 | 15.875 | 0.31 | 200 |
#6 | #19 | 1.502 | 2.240 | 0.750 = 3/4 | 19.050 | 0.44 | 284 |
#7 | #22 | 2.044 | 3.049 | 0.875 = 7/8 | 22.225 | 0.60 | 387 |
#8 | #25 | 2.670 | 3.982 | 1.000 = 8/8 | 25.400 | 0.79 | 509 |
#9 | #29 | 3.4 | 5.071 | 1.128 | 28.65 | 1 | 645 |
#10 | #32 | 4.303 | 6.418 | 1.27 | 32.26 | 1.27 | 819 |
#11 | #36 | 5.313 | 7.924 | 1.41 | 35.81 | 1.56 | 1006 |
#14 | #43 | 7.65 | 11.41 | 1.693 | 43 | 2.25 | 1452 |
#18 | #57 | 13.6 | 20.284 | 2.257 | 57.33 | 4 | 2581 |
Grades
Rebar is available in different grades and specifications that vary in yield strength ultimate tensile strength, chemical composition and percentage of elongation.
The grade designation is equal to the minimum yield strength of the bar in ksi (1000 psi) for example grade 60 rebar has minimum yield strength of 60 ksi. Rebar is typically manufactured in grades 40, 60, and 75. Ernest Maier stocks grade 60 exclusively.
Common ASTM specifications are:
- ASTM A184/A184M-19: Standard Specification for Welded Deformed Steel Bar Mats for Concrete Reinforcement
- ASTM A704/704M-19e1: Standard Specification for Welded Steel Plain Bar or Rod Mats for Concrete Reinforcement
- ASTM A615/A615M-20: Standard Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement
- ASTM A706/A706M-16:Standard Specification for Deformed and Plain Low-Alloy Steel Bars for Concrete Reinforcement
![](https://ernestmaier.com/wp-content/uploads/2021/07/Mike-Simon.png)
VP of Sales- Accessory DivisionMike Simon
Latest News
![6 Must-Have Concrete Reinforcing Accessories](https://ernestmaier.com/wp-content/uploads/2024/08/reinforcing-concrete.png)
6 Must-Have Concrete Reinforcing Accessories
In construction, boosting and guaranteeing the strength and durability of concrete structures are always a plus. This is where concrete […]
![Stormwater’s Buried Structural Plastic Problem](https://ernestmaier.com/wp-content/uploads/2024/08/iStock-2147674677-1024x575.jpg)
Stormwater’s Buried Structural Plastic Problem
One of the most common solutions to stormwater challenges is big chambers or vaults to hold water. That is when […]
![6 Concrete Finishing Tools You Will Need](https://ernestmaier.com/wp-content/uploads/2024/08/concrete-fishing-tool.png)
6 Concrete Finishing Tools You Will Need
Getting a smooth, polished, and professional finish on concrete surfaces requires the right set of concrete finishing tools. These tools […]
![The Art Of Formwork: Exploring Essential Concrete Form Accessories](https://ernestmaier.com/wp-content/uploads/2024/08/art-of-formwork.png)
The Art Of Formwork: Exploring Essential Concrete Form Accessories
Formwork is the unsung hero of concrete construction. It provides the mold that shapes wet concrete into its desired form. […]