What do numbers on rebar mean?

What do numbers on rebar mean?

Ever wonder what the size number for rebar represents? The number represents a unit of 1/8 of an inch. So that means a #4 rebar is 4 times 1/8″ or in other words – 1/2″. #5 bar is 5/8″; #6 bar is 3/4″ and so on.

What does the 40 number designate on steel rebar?

Rebar with a grade 40 designation offers a minimum yield strength of 40,000 pounds per square inch and conforms to ASTM A-615 performance standards. Its metric counterpart is grade 280 rebar, with an equivalent minimum yield strength of 280 megapascals.

How are reinforcing steel bars designated?

Rebars are required to contain some sort of identification that can be used to identify the mill that produced the reinforcing steel bar. The type of steel symbol must be noted. For example, “N” means the bar was rolled from a new billet, “W” stands for weldable steel, and “A” designates rolled axle steel.

What are the grades of reinforcing steel?

There are four grade of steel reinforcing bars, i.e. Grade 420, 550, 650, and Grade 700Mpa. And for each grade of steel reinforcing bars, there are three sample bars. Figure 5 shows the differences ratio tensile and yield strength of various grade of reinforcing bars.

What does 15M rebar mean?

15M rebar diameter:- size/ diameter of 15M rebar is 16mm or 0.625 inches, rounded to 15mm, size/ diameter of 15M rebar is equal to their nominal diameter in mm, so size/ diameter of 15M rebar is 16 in mm or 0.625 inches.

What is t10 rebar?

Size: 3 Meter.

How do you determine the grade of reinforcing bars?

One of the easiest is to look for the stamped numbers and letters between the lines on the rebar. This may include a set of three characters, such as B6S. This means that the manufacturer is shown by the letter B, it’s grade 60 rebar and it’s made of steel. If there’s another number there, that may show rebar sizes.

How do you know if rebar is a 706?

Bar Markings

1. The first letter or symbol identifies the producing mill.
2. The next marking is the bar size.
3. The third marking symbol designates the type of reinforcing steel — usually either “S” for carbon-steel (ASTM A615) or “W” for low-alloy steel (ASTM A706).

What do the numbers mean on a reinforcing bar?

The first letter or symbol means producing mill and deformation pattern. The second marking means the bar size, in this picture, ” 11 ” means the diameter of this rebar is #3. S: Carbon-steel (A615). W: Low-alloy steel (A706). R: Rail-steel (A996). I: Axle-steel (A996). A: Rail-steel (A996). The last marking shows the grade of reinforcing bar.

What does the number 11 mean on a Rebar bar?

The first letter or symbol means producing mill and deformation pattern. The second marking means the bar size, in this picture, ” 11 ” means the diameter of this rebar is #3. The third letter represents the type of steel as follow: S: Carbon-steel (A615).

What are the symbols on a steel bar?

The first letter or symbol identifies the producing mill. The next marking is the bar size.* The third marking symbol designates the type of reinforcing steel — usually either “S” for carbon-steel (ASTM A615) or “W” for low-alloy steel (ASTM A706).

How to identify the manufacturer of a rebar?

Each rebar is manufactured with a series of markings embossed on it. These individual markings reveal the true identity of the bar. There are four major marking symbols. 1. Code for manufacturer The first mark identifies the producing mill and/or the manufacturer of the reinforcement bar.