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Mar. 13, 2025
Basic representation: Prestressed steel strands are usually composed of multiple parameters, including the number of bundles, the number of steel wires, the nominal diameter and the tensile strength: such as "9-1×7-15.2-1860", "9" means the number of strands; "1×7" means each strand consists of 7 wires; "15.2" means the nominal diameter is 15.2mm; "1860" means the tensile strength is 1860MPa, for example, "15Φs15.2" means 15 strands with a nominal diameter of 15.2mm.
Diameter representation: When representing prestressed steel strands, the diameter is an important parameter. Many projects and engineering require steel strands of different diameters, which requires selection based on the diameter. For example, "15.2" means the diameter of the steel strand is 15.2mm, and "12.7" means the diameter of the steel strand is 12.7mm.
Wire quantity indication: Indicates the number of steel wires in each steel strand. For example, "1×7" means a steel strand composed of 7 steel wires, and "1x2, 1x3" means a steel strand composed of 2 steel wires and 3 steel wires. In addition, there is a "1x19" steel strand, which means a steel strand composed of 19 steel wires.
Strength level indication: The strength level of prestressed steel strand is also a key parameter. For example, "1860" means the tensile strength of the steel strand is 1860MPa, which is the most commonly used strength level in prestressed steel strands. "1960" means the tensile strength of the steel strand is 1960Mpa, Some of the steel strands produced by our factory also meet the 1960Mpa strength level. Please contact us for specific specifications.
Special treatment indication: If the steel strand has been specially treated, such as galvanizing, epoxy resin coating, etc., it will also be reflected in the indication method. For example, galvanized prestressed steel strands will be marked with "galvanized" in the model, using physical principles to delay matrix corrosion; while epoxy resin steel strands can greatly increase the service life of the steel strands.
Unbonded prestressed steel strand indication: Unbonded prestressed steel strands are usually marked with "unbonded" in the indication method. For example, steel strands treated with anti-corrosion grease and coated with HDPE are called unbonded prestressed steel strands.
The above is the basic indication method of steel strands, which can help us understand the parameters and meanings of steel strands very well, but in actual applications, the indication method of prestressed steel strands may be different, but the elements mentioned in this article are common components of prestressed steel strands.
What are the uses of common specifications of prestressed steel strands?
Steel Strands: Different Twisting Directions, Diverse Applications
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