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
VP of Sales- Accessory DivisionMike Simon
Latest News
4 Ways To Reinforce Concrete
Concrete is one of the most fundamental materials used in construction. If you’re working on a domestic project or a […]
The Environmental Benefits Of Using Ready-Mix Concrete
The construction industry is changing quickly to meet the growing demand for sustainability and eco-friendly practices. One of the most […]
6 Essential Tips For Grouting Stone Veneer
Grouting stone veneer is an important step in the installation process that can significantly impact the overall look and durability […]
Should You Fill Hollow Concrete Blocks?
Hollow concrete blocks are widely used in construction due to their strength, versatility, and lighter weight compared to solid blocks. […]
