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Light Steel Keel Product Introduction
Fire Rating: Class A1 non-combustible material (complies with GB 8624-2012 standard)
Environmental Standard: Formaldehyde-free, odorless, heavy metal-free, meeting GB 18581 environmental standard
Installation Spacing: Ceiling main keel 800–1200mm, cross keel 400–600mm; Partition vertical keel 400–600mm (adapting to different board load-bearing requirements)
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Product Overview
We launch high-quality light steel keel series products, made from high-grade continuous hot-dip galvanized steel strips through precision cold-bending rolling process. Integrating excellent light weight and high strength, fire resistance, moisture resistance, rust and corrosion resistance and easy installation, the products serve as the core load-bearing framework for modern building ceiling and partition systems. Compatible with various decorative boards (gypsum boards, calcium silicate boards, mineral wool boards, etc.), they provide a stable, environmental-friendly and efficient support solution for indoor decoration. It is a preferred material for architects, decoration companies, contractors and owners in ceiling and partition projects of commercial, public, residential and other buildings, widely applicable to various indoor decoration scenarios.
Specifications & Parameters
| Core Material | High-grade continuous hot-dip galvanized steel strip (Q235/Q355 grade), galvanized layer thickness ≥120g/㎡ (double-sided) |
| Product Type | Ceiling keel (U-shaped main keel, C-shaped cross keel, edge keel), partition keel (C-shaped vertical keel, U-shaped top/bottom track keel, C-shaped reinforcing keel) |
| Cross-sectional Dimensions |
Ceiling Main Keel: 50×15×1.2mm, 60×27×1.2mm, 75×27×1.2mm, 100×27×1.2mm (height × width × thickness) Ceiling Cross Keel: 50×19×0.5mm, 60×24×0.6mm, 75×24×0.6mm, 100×24×0.6mm (height × width × thickness) Partition Vertical Keel: 75×50×0.6mm, 100×50×0.7mm, 150×50×0.8mm, 200×50×0.9mm (height × width × thickness) Top/Bottom Track Keel: 75×50×0.6mm, 100×50×0.7mm, 150×50×0.8mm, 200×50×0.9mm (height × width × thickness) Custom cross-sectional dimensions available |
| Length Specification | Ceiling keel 3000mm, 3600mm, 6000mm; Partition keel 3000mm, 3600mm, 4000mm; customizable |
| Physical Performance |
Tensile strength ≥370 MPa Yield strength ≥235 MPa (Q235 grade)/≥355 MPa (Q355 grade) Flatness deviation ≤2mm/m Rust resistance grade: No rust after 72-hour neutral salt spray test in accordance with GB/T 10125 |
| Fire Rating | Class A1 non-combustible material (complies with GB 8624-2012 standard) |
| Environmental Standard | Formaldehyde-free, odorless, heavy metal-free, meeting GB 18581 environmental standard |
| Installation Spacing | Ceiling main keel 800–1200mm, cross keel 400–600mm; Partition vertical keel 400–600mm (adapting to different board load-bearing requirements) |
Product Features
Light Weight, High Strength & Labor-saving: Density is only 1/3 of wood, light weight and high strength, easy to transport, reducing construction intensity, improving installation efficiency and lowering labor costs.
Rust & Corrosion Resistant, Durable: Hot-dip galvanized substrate isolates air and moisture, excellent rust and corrosion resistance, service life up to 20–30 years indoors, not easy to deform, decay or be moth-eaten.
Fire & Moisture Resistant, Safe: Class A1 non-combustible material, does not burn or produce toxic fumes when exposed to fire; inorganic metal properties, moisture-proof and mildew-proof, suitable for humid environments (such as bathrooms, basements).
Easy & Efficient Installation: Standardized size design, complete accessories (hangers, connectors, rivets, expansion bolts), simple splicing and fixing, enabling rapid construction.
Wide Compatibility: Compatible with gypsum boards, calcium silicate boards, mineral wool boards, aluminum ceiling panels and other ceiling/partition boards, adapting to exposed grid, concealed grid, hidden and other installation methods.
Environmental & Healthy: Formaldehyde-free, odorless, no harmful substances released, meeting green building and healthy living requirements, suitable for various sensitive crowd spaces.
Stable & Flat Structure: Precision rolling process ensures accurate keel dimensions and high flatness, stable overall structure after installation, tight fit with boards, not prone to cracking or deformation.
Application Scenarios
Commercial Buildings: Office building ceilings/partitions, shopping mall ceiling frameworks, hotel guest room/lobby ceilings and partitions, shop decoration keel systems, bank business hall ceilings, etc., balancing efficiency and aesthetics.
Public Buildings: School classroom/library ceilings and partitions, hospital consulting room/ward clean area keels (antibacterial coating optional), airport/railway station waiting hall ceilings, theater/exhibition center partition frameworks, etc.
Residential Buildings: Apartment living room/bedroom ceilings, kitchen and bathroom partitions and ceilings, villa indoor decoration keels, basement moisture-proof partitions, standardized decoration keel systems for hardcover houses, etc.
Industrial Buildings: Factory workshop clean area ceilings and partitions, machine room noise reduction wall frameworks, office building auxiliary room decoration, warehouse partitions, etc., meeting functional and safety requirements.
Other Scenarios: Old house renovation ceiling and partition upgrades, exhibition hall temporary partitions, nursing home/nursery indoor decoration, prefabricated building supporting keels and other spaces with requirements for environmental protection and stability.
Frequently Asked Questions (FAQ)
Q1: What is the core difference between light steel keel and wooden keel?
A: The core difference lies in environmental protection, safety and durability: light steel keel is formaldehyde-free, fire and moisture resistant, rust and corrosion resistant, with long service life; wooden keel is prone to moisture decay, moth-eaten, has high combustion risk, and may release formaldehyde, with poor environmental protection and safety. In addition, light steel keel has higher strength, better flatness and higher construction efficiency.
Q2: What thickness of boards can the load-bearing capacity of the light steel keel meet?
A: Regular specification keels can be adapted to various boards of 6–25mm thickness: 50/60-series ceiling keels for 6–12mm boards, 75/100-series for 12–25mm boards; 75-series partition keels for 6–18mm boards, 100–200-series for 18–25mm thick boards; if hanging heavier boards, thickened keels (thickness ≥1.5mm) or denser keel spacing can be selected.
Q3: Is light steel keel suitable for humid environments such as bathrooms and basements?
A: Absolutely. Light steel keel is made of metal, moisture-proof, mildew-proof and not easy to rust, making it the preferred framework material for ceilings and partitions in humid environments; it is recommended to choose special moisture-proof light steel keels with thicker galvanized layers (≥140g/㎡), and 做好 joint sealing during installation to improve moisture resistance stability.
Q4: Does light steel keel support custom special sizes?
A: Yes. Special cross-sectional dimensions (such as unconventional height and thickness), lengths (up to 8000mm) can be customized according to project requirements, and anti-corrosion coatings (such as hot-dip galvanizing, color coating) can also be customized. Specific customization requirements can be communicated with the business team.
Q5: Are professional tools required for installing light steel keels?
A: Basic special tools are required: electric drill, rivet gun, keel cutting machine (or angle grinder), level, etc.; the installation process is standardized, and it is recommended to be operated by a construction team with decoration experience to ensure that the keel spacing and flatness meet the specifications and guarantee load-bearing stability.
Q6: Can the fire resistance of light steel keel pass the fire acceptance inspection?
A: Yes. The product is a Class A1 non-combustible material, fully complying with the national standard GB 8624-2012 "Classification of Burning Performance of Building Materials and Products". When used with non-combustible boards such as gypsum boards and calcium silicate boards, it can form a complete fireproof partition/ceiling system, which can successfully pass the fire acceptance inspection.
Q7: Are supporting installation accessories and technical support provided?
A: Yes. Special hangers, connectors, rivets, expansion bolts and other complete installation accessories are supplied with the purchase of light steel keels; at the same time, product installation technical manuals and keel spacing design suggestions are provided. If needed, technical personnel can be arranged for on-site guidance to ensure standardized construction.
