A1 Fire-Resistant Stainless Steel Composite Panels

**Product Overview**

A1 Fire-Resistant Stainless Steel Composite Panels are high-performance architectural panels manufactured by bonding stainless steel sheets to a non-combustible core. Using a specialized heat-and-pressure bonding process, the panels combine the corrosion resistance and smooth finish of stainless steel with the fire-resistant properties of the core material.

Compared with solid stainless steel sheets, the composite structure significantly reduces panel weight while maintaining excellent rigidity and strength. The panels also offer good bending and forming performance, making them suitable for architectural applications requiring fire safety, durability, and refined surface quality.

**Product Features**

- **Fire Safety:** The non-combustible core is designed to meet applicable fire performance requirements. The supplied product information references ASTM D1929 and an average heat value of 2.5 MJ/mol.

- **Excellent Corrosion Resistance:** Stainless steel face sheets provide resistance to rust and corrosion, making the panels suitable for demanding architectural environments.

- **Lightweight Structure:** The supplied specifications indicate that a 4 mm stainless steel composite panel weighs approximately the same as a 2.9 mm solid stainless steel sheet, with a reported weight reduction of 55%.

- **High Strength:** The stainless steel face sheets provide high tensile strength and structural rigidity.

- **Excellent Formability:** Designed to support bending and forming without cracking or separation of the core under appropriate processing conditions.

- **Strong Bonding:** Specialized bonding technology integrates the stainless steel sheets with the non-combustible core to maintain panel integrity.

- **Scratch Resistance:** The durable stainless steel surface helps resist scratches and everyday wear.

- **Stain Resistance:** The smooth surface resists common stains and facilitates cleaning.

- **Weather and Moisture Resistance:** Designed to withstand weather exposure and humid conditions.

- **Non-Fading Surface:** The finish is designed to retain its appearance during normal service.

- **Freeze-Thaw Resistance:** Suitable for applications requiring resistance to repeated temperature changes.

- **Easy Installation:** The lightweight construction facilitates handling, processing, and installation.

- **Recyclable Material:** The metal components can be recycled, supporting material recovery at the end of the product's service life.

**Technical Specifications**

- Composite Panel Thickness: 3 mm, 4 mm, 5 mm, and 6 mm

- Maximum Panel Width: 1200 mm

- Panel Length: 2440 mm and 3200 mm, or customized according to project requirements

- Stainless Steel Sheet Thickness: 0.3 mm, 0.4 mm, and 0.5 mm

- Tensile Strength: 84 MPa

- Yield Strength (Rp0.2): 69 MPa

- Elongation: 12.6%

- Modulus of Elasticity: 70.6 GPa

- Bending Stiffness (ExI): 372 kN·m²/mm

- Shear Strength: 55 MPa

**Applications**

- Modern Architectural Facades

- Commercial building exteriors

- Interior Wall Cladding

- Public Buildings and institutional facilities

- Transportation facilities

- Healthcare and specialized buildings

- Commercial and industrial interiors

- Architectural projects requiring fire-resistant cladding

**Customization**

A1 Fire-Resistant Stainless Steel Composite Panels can be customized in panel thickness, dimensions, stainless steel sheet thickness, and surface finish. Panel sizes and processing requirements can be adjusted according to architectural drawings and project specifications.

**Manufacturing Process**

The panels are manufactured using stainless steel face sheets and a non-combustible core. Adhesive films are applied to both sides of the core. The preheated stainless steel sheets are bonded to the core under controlled heat and pressure, followed by integrated cooling to form the composite panel.

The specialized bonding process is designed to provide strong adhesion while maintaining the smoothness of the stainless steel surface and supporting subsequent bending and forming operations.

**Installation and Maintenance**

The lightweight structure makes the panels easier to handle and install than comparable solid stainless steel sheets. Their smooth, corrosion-resistant surfaces facilitate routine cleaning and maintenance. Panel processing and installation should follow the applicable project specifications and fabrication requirements.