Wire Rod

Road wire, also known as wire rod, generally refers to small-diameter round steel wound in coils. The diameter of rod wire ranges from 5 to 19 millimeters (usually 6-9 millimeters), with the lower limit being the minimum cross-sectional size of hot-rolled steel. There are many types of rod wire. In carbon steel rod wire, low-carbon steel rod wire is commonly called soft wire, while medium- and high-carbon steel rod wire is commonly called hard wire. Rod wire is mainly used as a raw material for drawing wire, but it can also be directly used as construction material or processed into mechanical parts. Stainless steel rod wire is used to manufacture stainless steel wire, stainless steel spring wire, stainless steel forging wire, and steel wire for stainless steel ropes. With advancements in production technology, rod wire with square, hexagonal, fan-shaped, and other special cross-sections has emerged; the upper limit of diameter has expanded to 38 millimeters; and the weight of coils has increased from the original 40-60 kilograms to 3,000 kilograms. Due to the development of new post-rolling heat treatment processes, the surface scale of rod wire has significantly thinned, and its microstructure and performance have greatly improved.

The commercial form of coiled steel bars is supplied in coils. On construction sites, commonly seen diameters are 6, 8, 10, and 12 millimeters, mostly made of low-carbon steel, often used for making rebar cages. Smaller diameters are used for reinforcing bricks in masonry structures. Before use, coiled steel bars need to be straightened and cut using a rebar straightening machine, which also removes rust and oxide scales. Additionally, the strength is somewhat increased through repeated bending and stretching. On small construction sites without a straightening machine, a winch can be used to straighten the coils. However, pulling them directly is not advisable, as it can cause excessive plastic deformation. One end should be equipped with a pulley and weight to control the pulling force.

For comprehensive solutions in steel building material, please contact Junnan Steel via email at yy@tsjunnan.com or WhatsApp at (+86) 13780503368 for immediate assistance!