HRB400 Steel Bar

HRB400 Thread Steel Rebar, for Construction use of Iron Rod Steel Rebar, Galvanized Steel Rebar in adequate Inventory.

HRB400 steel bars are used as tensile devices in reinforced concrete and reinforced masonry structures to strengthen and assist the strength of concrete under tension. Concrete is strong under compression but has low tensile strength. Rebar can significantly increase the tensile strength of a structure. The surface of the steel bars has a continuous series of ribs, lugs or indentations to promote better bonding with the concrete and reduce the risk of slipping.

The most common type of rebar is carbon steel, typically consisting of hot-rolled round bars with deformation patterns embossed into its surface. Steel and concrete have similar coefficients of thermal expansion,[2] so a concrete structural member reinforced with steel will experience minimal differential stress as the temperature changes.

Other readily available types of rebar are manufactured of stainless steel, and composite bars made of glass fiber, carbon fiber, or basalt fiber. The carbon steel reinforcing bars may also be coated in zinc or an epoxy resin designed to resist the effects of corrosion, especially when used in saltwater environments. Bamboo has been shown to be a viable alternative to reinforcing steel in concrete construction.[3][4] These alternative types tend to be more expensive or may have lesser mechanical properties and are thus more often used in specialty construction where their physical characteristics fulfil a specific performance requirement that carbon steel does not provide.

HRB400 Steel Bar Parameter (Specification)