Grade 40 Grade 60 Hrb355 HRB400 High Strength Steel Rebar, HRB500 Deformed Iron Rods, Mild Steel Reinforced Rebar for Construction

Steel Rebar, commonly referred to as reinforcing steel or reinforcement steel when amassed, is a type of steel bar employed as a tensioning device in reinforced concrete and masonry structures to fortify and support the concrete subjected to tension. While concrete exhibits strength under compression, its tensile strength is relatively low. Rebar plays a crucial role in significantly enhancing the tensile strength of structures. The surface of rebar is characterized by a continuous array of ribs, lugs, or indentations, facilitating improved adhesion with the concrete and minimizing the risk of slippage.

The predominant variety of rebar is carbon steel, typically composed of hot-rolled round bars featuring embossed deformation patterns on their surfaces. Due to the similar coefficients of thermal expansion between steel and concrete, a concrete structural element reinforced with steel undergoes minimal differential stress during temperature fluctuations.

Alternative types of rebar readily available include those crafted from stainless steel, as well as composite bars made from materials such as glass fiber, carbon fiber, or basalt fiber. Carbon steel reinforcing bars may undergo coatings like zinc or epoxy resin to resist corrosion, particularly when exposed to saltwater environments. Bamboo has emerged as a viable substitute for reinforcing steel in concrete construction. While these alternative types may be more expensive or possess inferior mechanical properties, they are often utilized in specialized construction applications where their unique physical characteristics meet specific performance requirements that carbon steel cannot fulfill.