AS4671 PDF

AS Patterns of Potential It was published on 2 April To maintain their currency, all Standards are periodically reviewed, and new editions are published. Between editions, amendments may be issued.

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Reinforced concrete provides a strong, durable material that can be formed into elements of any shape and size. Its versatility combines the best features of both concrete and steel.

Consider some of the very different properties of these two materials. For more information on steel reinforcement properties and usage see ' More Information ' link below. There has been a recent influx of imported reinforcing bar coming onto the Australian market. Designers, specifiers and end users should be aware that direct substitution of non AS reinforcing steel for Australian made product may not achieve design intent. There are some significant differences in metallurgical and physical properties of reinforcing steels.

Rebend characteristics Rebend test requirements of AS give a measure of the susceptibility of steel to strain hardening and embrittlement. AS specifies a rebend test 90 degrees and complete straightening whereas Standards such as BS require only a 45 degree initial bend and 23 degree rebend. The superior rebend requirement of Australian steel had led to extensive use of pull-out bars in precast and slipform construction. Such construction methods rely on the ability to safely rebend the steel.

Identifying Australian-made steel It would be impossible to identify all of the imported steels which may enter Australia. However Australian-made reinforcing steel can be identified by unique marks which identify the manufacturer and even the location of the mill.

The diagrams to the left show the unique bar marks for one particular Australian steel, from different mills. The two materials are complimentary: steel provides the tensile and shear strength, concrete the fire resistance and durability.

Together they provide a building material that is flexible, cost-effective and quick to construct. For more information on steel reinforcement properties and usage see ' More Information ' link below Why use Australian-made bar?

The reason for a low CE in Australian steel is to maintain the excellent welding properties of Australian steel. Without special treatment AS steels are highly weldable. This has provided greater simplicity in prefabrication and fixing of reinforcements especially for precast concrete. Click Here for more information. Full Members. Associate Members.


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Size: mm 5. Rebar is a common steel reinforcing bar, used in reinforced concrete and reinforced masonry structures. It is formed from mild steel, and is given ribs for better frictional adhesion to the concrete. The Rebar is an iron rod , a weldable plain reinforcing steel bar, and can be used as well for steel meshes. The products of our company are used in many fields. For example, construction industry, transportation industry, electrical industry and communication engineering Besides, coal mine tunnel, half coal roadway, slope support, rock surface anchoring, sea wall, dam and airport etc.


as4671 grade 500n deformed steel rebar - HRB335& HRB400E& HRB500& BS4449

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