Light Steel Keel

Wooden keels are typically made from pine or fir, softwoods that are easy to nail. Wooden keels should be straight and free from distortion, bending, or fractures. The section size of the main keel is usually 40mm x 60mm, and the secondary keel is often 30mm x 40mm or 50mm x 70mm. Steel hangers for wooden keels typically have a section size of 30mm x 30mm x 3mm.

When using wooden keels, it is important to ensure the wood is properly dried. For safety, wooden keels should be treated with fireproof, moisture-proof, and anti-fungal coatings before use.

Light steel keels are typically made of galvanized sheet metal, with a thickness not less than 1mm. The keels and fittings should be properly galvanized, and the primary and secondary coatings should be in good condition without any damage. The keels should be straight, with no bending or distortion.

The steel hangers for light steel keels are generally made from steel and fixed with angle steel, commonly with specifications of 30mm x 30mm x 3mm. Steel hangers and fixed angles should be treated with anti-rust paint.

Light steel keels are typically made from galvanized steel or aluminum alloy. These materials are lightweight, offer high stiffness, good fire resistance, and excellent seismic performance. They are easy to process and install. Based on their section shape, light steel keels can be classified into U-keels and T-keels.

The advantages of light steel keels include their light weight, high strength, and excellent corrosion resistance. They are primarily used with gypsum board and related products. The surface of these keels should be treated with anodizing, coating, or paint for corrosion protection. When choosing light steel keels, it is important to ensure that the surface coating is in good condition and undamaged. Qualified aluminum alloy keels should be straight and free from distortion.