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What Is High Strength Thread Bar

Author: Marie

Aug. 04, 2022

60 0

Tags: Hardware

Whether you are building a concrete slab for a driveway or a 40-story office building, reinforcing steel is an essential element of a concrete foundation, providing the required tensile and compressive strength.

Reinforcing steel (often called rebar and rebar mesh) is made from a raw material called iron ore. It is used in concrete to provide additional strength because concrete has a weaker tensile strength while steel has a higher tensile and compressive strength. This makes steel and concrete like gin and tonic; they are very effective together and go hand in hand!

It turns out steel and concrete have similar coefficients of thermal expansion, which means as the temperature changes (during day and night, season to season) that the structure experiences minimum stress in any structural elements, like beams, columns and slabs.


Waht Is High Strength Thread Bar


What type of steel is rebar and what is it made out of?

Reinforcing steel typically consists of carbon steel, which is hot rolled with deformation patterns (The ribbed profiles you see on the rebar and wire), allowing for a stronger bond to the concrete.

The steel bars and mesh are produced from iron ore and recycled steel in different steel mills around the world. While iron ore is an excellent material, using recycling steel is more energy efficient and has other benefits like reduced pollution and exhaustion of natural resources.


Understanding the codes of Steel Reinforcement Bar and Wire

Understanding the reinforcing steel codes can be confusing, as companies use different coding for their products. So, we have broken it down using the Australian standard codes, which we use today.

You may have seen the code ‘D500N12’, but as per industry standard it’s generally known by its abbreviated term ‘N12’.

Here is D500N12 broken down: 

D = Deformed Rebar

500 = Yield Strength (MPa)

N = Normal Ductility

12 = Diameter (mm)

Just remember if the code starts with N i.e ‘N16’ the N represents (Deformed bar). ‘R’ (Round bar), ‘RW’ (Ribbed wire) or ‘W’ (Round wire).

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