Light steel keel types

According to the purpose, light steel keels include ceiling keels and partition keels, and according to the cross-sectional form, there are V-shaped, C-shaped, T-shaped, L-shaped, and U-shaped keels.
The marking order of light steel keels is: product name, code, width of cross-sectional shape, height, steel plate thickness and standard number. For example, if the cross-sectional shape is "C", the width is 50mm, the height is 15mm, and the steel plate thickness is 1.5mm, the marking of the ceiling keel is: Light steel keel for construction DC50×15×1.5 GB11981.
Appearance quality The appearance of the light steel keel should be flat, with clear edges and corners, and the cuts are not allowed to have burrs and deformations that affect the use. The galvanized layer is not allowed to have defects such as peeling, tumors, and shedding. For defects such as corrosion, damage, black spots, pitting, etc., when tested according to the prescribed method, it should comply with the provisions of Table 2-81. When inspecting the appearance quality, visual inspection should be carried out under bright light conditions at a distance of 0.5m from the product.
The surface of the light steel keel should be galvanized to prevent rust, and the double-sided galvanizing amount: the superior product is not less than 120g/m*m
Painted keel
Painted keel is made of fireproof galvanized sheet and is durable. It adopts economic placement structure, special connection method, and combined loading and unloading. Convenient, saving labor hours, and simple construction. The keel surface is made of galvanized steel plate and is treated with baking paint.
The difference between light steel keel and painted keel is that the general light steel keel is not coated, only coated (galvanized), while the surface of the painted keel is painted, generally divided into black and white, and a few are baked into other colors according to design requirements. This is mainly because most of the painted keels are used in exposed keels, and the paint is to ensure that the exposed parts will not rust and will not affect the appearance.
Exposed keel
Flat series, groove series, three-dimensional groove series. Concealed keel: Flat series
The overall flat effect of the painted keel is good, the lines are simple, and the appearance is generous. Painted keels are safe, strong and beautiful, suitable for supporting construction of various mineral wool ceilings, aluminum block ceilings, calcium silicate boards, etc.
It has the functions of light weight, high strength, waterproof, fireproof, shockproof, sound insulation, sound absorption, etc., and also has the advantages of short construction period and simple construction. It is a new type of ceiling decoration material, widely used in shopping malls, hospitals, banks, hotels, factories, terminals, etc.
The main specifications of partition keels are divided into Q50, Q75 and Q100.
The main specifications of ceiling keels are divided into D38, D45, D50 and D60.