Macalloy

Macalloy is a brand name of high-strength steel bars and associated components used primarily in construction and engineering applications. These bars are often referred to as tie bars, tension bars, or post-tensioning bars, depending on their specific application.

Macalloy bars are typically manufactured from a special grade of high-strength steel alloy that is then cold-worked to further enhance its strength and yield characteristics. The process results in a material capable of withstanding very high tensile loads.

Common applications of Macalloy systems include:

• Bridge Construction: Used as stay cables in cable-stayed bridges or as internal or external tendons in post-tensioned concrete bridges.
• Building Construction: Employed as tension members in structural steel frameworks or as tie bars in reinforced concrete structures.
• Ground Anchors: Utilized for stabilizing slopes, retaining walls, and other earthworks.
• Dam Construction: Used for anchoring concrete dams to bedrock.
• Stadium Roof Structures: Provides tensioning for large span roofs.

The Macalloy system typically consists of the high-strength steel bar itself, along with various accessories such as anchor nuts, bearing plates, couplers, and protective coatings to prevent corrosion. The bars are available in a range of diameters and lengths to suit different design requirements. The system is known for its high strength, durability, and ease of installation. The brand is often associated with comprehensive engineering support and quality control.