Steel Wire Strand
Steel strand is a steel product composed of multiple steel wires. The surface of carbon steel can be added with galvanized layer, zinc-aluminum alloy layer, aluminum clad, copper-plated layer, epoxy coated layer as needed. )Wait.
Product Description
| Product Name | Steel Strand |
| Performance Characteristics | High tensile strength. Low relaxation. Stable modulus, stress relief and firm bond with concrete |
| Standard | ASTM-A416\416M-2006,BS.5896-1980,JIS.G3536-1999,GR\T5224-2003 |
| Structural Specifications | 12.7mm, 15.24mm, 17.8mm, 21.8mm |
| Tensile Strength | The common tensile strength grade is 1860 megapascals (Mpa), and there are strength grades such as 1720, 1770, 1960, 2000, 2100 megapascals (Mpa) |
| Diameter of Prestressed Steel Strand | 12.7mm,15.20mm,15.24mm, 17.8mm,18.9mm,21.6mm,21.8mm |
| Application | It is used for highways, bridges, railways, coal mines; water conservancy projects, anchor tension members, nuclear power plants, urban construction, etc. |
Classification of Steel Strands
1-Classified by use: prestressed steel strands, galvanized steel strands (for electric power) and stainless steel strands, of which the prestressed steel strands are coated with anti-corrosion grease or paraffin and then wrapped with HDPE, called unbonded prestressed steel strands Wire (unbonded steel strand), prestressed steel strand is also made of galvanized or galvanized aluminum alloy steel wire.
2-Classified according to material characteristics: steel strands, aluminum-clad steel strands and stainless steel strands.
3-Classified by structure:
The prestressed steel strand can be divided into 7 wires, 2 wires, 3 wires and 19 wires according to the number of wires, and the most commonly used structure is 7 wires.
Galvanized steel strands and aluminum-clad steel strands for electric power are also divided into 2, 3, 7, 19, 37 and other structures according to the number of steel wires, and the most commonly used is the 7-wire structure.
4- Classification by surface coating:
It can be divided into (smooth) steel strands, galvanized steel strands, epoxy-coated steel strands, aluminum-clad steel strands, copper-coated steel strands, plastic-coated steel strands, etc.
How to make steel strands?
The manufacturing process is divided into monofilament manufacturing and stranded wire manufacturing. The (cold) wire drawing technology is used in the production of monofilament. According to the different materials of the product, it can be high carbon steel wire rod, stainless steel wire rod or medium and low carbon steel wire rod. Zinc, should be electroplated or hot dipped on monofilament.
In the process of strand manufacturing, a stranding machine is used to twist multiple steel wires into a product. The prestressed steel strand also needs to be continuously stabilized after being formed. (reel-less) completed.
Application of Steel Strand
Galvanized steel strand is usually used for messenger wire, guy wire, core wire or strength member, etc. It can also be used as earth wire/ground wire for overhead power transmission, The barrier cable on both sides of the road or the structure cable in the building structure.
Prestressed steel strands commonly used in prestressed steel strands are uncoated low-relaxation prestressed steel strands (uncoated steel strands for prestressed concrete), and galvanized (galvanized), which are often used in bridges, buildings, water conservancy, energy And geotechnical engineering, etc., unbonded steel strand or monostrand is often used in floor, foundation engineering, etc.
