Ribbed Bars refers to steel used for reinforced concrete and prestressed reinforced concrete.
The shape of the transverse ribs is spiral, herringbone, and crescent. It is expressed in millimeters of the nominal diameter. The nominal diameter of ribbed steel bars is equivalent to the nominal diameter of smooth round steel bars with equal cross-sections. The nominal diameter of the steel bars is 5.5 – 7.0 mm and the length is from 1 to 12 meters.
Ribbed bars are widely used in various building structures, especially large, heavy, light thin-walled and high-rise building structures.
Electro-welded wire mesh is produced using the method of Resistance Spot Welding (RSW), which meets the required quality standards, SRPS EN 10080:2008. By combining the different bars of diameter ø4 – ø12 mm and various spacing dimensions, we can offer a broad range of wire meshes:
- Biaxially supporting meshes, type “Q“
- Longitudinally supporting meshes, type “R“
- Wall meshes, type “Qx“ and “Rx“
- Nonstandard meshes on demand
Wire Range
5.5mm to 0.9mm
Finish or Surface treatment
None or spray oil for rust resistance
Tensile Strength
300 N/MM2 - 450 N/MM2
Elongations
8% - 15%
Black Annealed Wire is also called black iron wire, soft annealed wire and annealed iron wire. It includes annealed wire and black oiled wire. Black annealed iron wire gets its name from its plain black color. Black annealed wire is mainly processed into coil wire, spool wire or big packaged wire. Compared with drawn wire, black annealed wire is more softer and has higher flexibility. It is also known for anti-corrosion and anti-oxidation.
Black annealed wire is mainly used for binding rebar steel structures in construction. It is also used to bind recycling material in big packages after they have been pneumatically pressed. In agricutlure it is used for binding steel structures together.
Annealed wire is obtained by means of thermal annealing. Annealed wire offers excellent flexibility and softness through the process of oxygen free annealing. Black Annealed Wire is stored in coils or spools of a varying weights and dimensions depending on the purposes.
Black annealed wire is made out of low carbon steel SAE 1005-1006-1008 depending on the required tensile strength.
Coils can be made from 2 kilograms up to 500 kilograms depending on the request, strapped with metal straps and wrapped in plastic.
