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China Steel Lined PVC Composite Windows Manufacturer, Supplier, Factory
When selecting high-performance fenestration solutions, the integration of steel reinforcement within PVC profiles delivers exceptional structural integrity and thermal efficiency. Our range of Steel Reinforced PVC Composite Windows is engineered to meet rigorous modern building standards, providing a slim sightline aesthetic without compromising on strength. For projects requiring adaptable ventilation and easy maintenance, the Tilt and Turn PVC-steel Composite Windows mechanism offers dual functionality, allowing secure night-ventilation or full inward opening. Homeowners looking to upgrade their living spaces will appreciate the tailored performance of Residential PVC-steel Composite Windows, which combine classic curb appeal with energy-saving glazing. For large-scale developments and office blocks, our Commercial PVC-steel Composite Windows deliver robust durability, acoustic insulation, and low lifecycle costs essential for demanding commercial environments.
Steel Lined PVC Composite Windows represent the pinnacle of hybrid window engineering, where a fully concealed galvanized steel core is bonded inside premium uPVC extrusions. This construction method prevents warping, increases multi-point locking security, and enables expansive glass areas with improved U-values down to 0.8 W/m²K. The fusion-welded corners and EPDM gaskets create an impermeable barrier against driving rain and noise intrusion. Below is a detailed breakdown of the key specifications and material data.
- Profiles: Class A (DIN EN 12608), multi-chamber with 1.5–2.0 mm steel lining thickness
- Glazing: Double or triple pane, argon-filled, low-E coating, warm edge spacer
- Weather performance: Air permeability Class 4, watertightness 600 Pa, wind load resistance Class C5
- Sound reduction: Up to Rw 48 dB (depending on glass configuration)
- Security: PAS 24 certified, multi-point shootbolt locks, internal beading
- Finish: Acrylic colour coating (RAL palette) or woodgrain foil lamination, UV-stable
| Parameter | Standard | Value |
|---|---|---|
| Overall Uw value | EN 10077-1 | 0.80 – 1.20 W/m²K |
| Glass Ug value | EN 673 | 0.5 – 1.0 W/m²K |
| Solar heat gain (g-value) | EN 410 | 0.45 – 0.63 |
| Visible light transmittance | EN 410 | 69 % – 82 % |
| Steel lining thickness | EN 12608 | 1.5 mm / 2.0 mm |
| Acoustic rating (Rw) | ISO 10140-2 | 35 – 48 dB |
| Opening type | – | Tilt & turn, casement, fixed, tilt-slide |
| Maximum sash weight | – | 140 kg |
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