Steel Arched Doors

Steel Arched Doors by Steel Lattice-Premium Security & Customizable Design for Modern Architecture 

1.Premium Cold-Formed Steel for Unmatched Strength

Steel Lattice arched doors are engineered with high-strength cold-formed steel, delivering structural integrity for both residential and industrial applications. The cold-forming process enhances steel density, achieving a yield strength of 345 MPa and tensile strength of 470 MPa—ideal for high-traffic environments like hospitals, hotels, and commercial buildings. Steel Lattice doors feature 2mm galvanized steel frames and 1.0mm door panels, combining lightweight construction with exceptional load-bearing capacity. The seamless steel arched door design resists warping under extreme weather, ensuring long-term stability. With precision-engineered joints and a 10-year structural warranty, Steel Lattice arched doors redefine durability and reliability in architectural solutions.

Key Features:

• 345 MPa yield strength for heavy-duty applications.

• 2mm galvanized steel frames resistant to corrosion.

• Easy installation.

2. Advanced Laser Welding for Flawless Precision

Steel Lattice arched doors utilize laser welding technology to create airtight, smooth seams free from porosity. The automated process ensures uniform penetration, achieving weld strength that matches 95% of the base material—eliminating weak points common in traditional arc welding.This precision makes Steel Lattice doors suitable for fire-rated applications (certified up to 1.5 hours) while maintaining a sleek aesthetic. The flat weld surface allows seamless integration with decorative finishes, preserving the arched steel door's elegance without compromising security.

Key Features:

• 95% weld-to-base strength for structural integrity.

• Fire-rated up to 1.5 hours (GB12955 certified).

• Smooth, airtight seams for enhanced weather resistance.

3. Exceptional Tensile Strength for Innovative Designs

Engineered with 550 MPa tensile strength steel, Steel Lattice arched doors support complex architectural configurations, including spans up to 3,000mm. The material’s 22% elongation rate allows for intricate curved profiles without compromising stability, perfect for modern minimalist or Gothic-inspired façades.Reinforced hinges distribute weight evenly, ensuring smooth operation even in oversized custom steel arched door installations. Steel Lattice’s design flexibility meets the demands of luxury villas, industrial complexes, and high-security facilities.

Key Features:

• 550 MPa tensile strength for unique spans and curves.

• 3,000mm maximum span with 50mm slim profile.

• Reinforced hinges for smooth, silent operation.

4. Durable Galvanized & Triple-Layer Powder Coating

Steel Lattice arched doors feature a 20μm galvanized undercoat and three electrostatic powder layers, tested to withstand 1,000+ hours in salt spray (ASTM B117). The zinc-aluminum alloy base combats coastal corrosion, while the polyester topcoat provides UV stability and scratch resistance. Various colors are available, the coating system ensures galvanized steel doors retain vibrancy for over 15 years in harsh climates. Double-sealed edges with silicone gaskets prevent moisture ingress, making Steel Lattice doors ideal for coastal and industrial zones.

Key Features:

• 1,000+ hours salt spray resistance (ASTM B117).

• Various colors are available.

• Triple-layer coating for extended lifespan.

5. Superior Thermal Insulation with Double Glazing

Steel Lattice arched doors integrate 6mm+12A+6mm tempered double glazing, achieving a U-value of 1.6 W/m²K—reducing heat transfer by 40%.The hollow glass and low-E glass coating optimize energy efficiency, ideal for temperature-controlled environments like laboratories and hospitals. For urban settings, the acoustic variant uses 35dB noise-reducing laminated glass, ensuring privacy in offices and residences.

Key Features:

• U-value 1.6 W/m²K for energy savings.

• 35dB noise reduction with laminated glass.

• The hollow glass and low-E glass for enhanced insulation.

6. Fully Customizable to Match Your Vision

Steel Lattice arched doors offer 100% customization across dimensions (max 3,000x3,000mm), finishes, and hardware. Choose from:

• Design: Full-arch, segmental arch, or Gothic profiles.

• Glass: Frosted, textured, or stained inserts.

• Security: Cold-formed one-piece high-strength steel.

• Fire Ratings: 30–90 minutes (tested per GB12955)