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China Suppliers Factory Steel Fireproof Doors for Superior Fire Resistance and Safe Evacuation
Products Detail
Material:
Steel-insulated fire-rated doors are crafted from premium galvanized steel sheets, with the door leaf filled with fire-rated insulation material.
Features:
Reasonable structure, smooth and aesthetically pleasing surface, fire-rated, corrosion-resistant, and oxidation-resistant, effectively inhibiting fire spread.
Available Colors/Specifications:
Customizable.
Opening Modes:
Single-leaf, double-leaf, and unequal-leaf configurations.
Applications:
High-end buildings, hotels, restaurants, hospitals, industrial plants, shopping centers, entertainment venues, etc.
Specialized Product:
Extra-large steel fire-rated doors (3M x 3M), ideal for warehouses and industrial facilities, facilitating easy access for trucks.
Technical Specifications
| No. | Component Name | Model/Specification |
|---|---|---|
| 1 | Door Leaf | Material: 0.8mm galvanized steel plate Thickness: 50mm Core Material: High-density, environmentally friendly fireproof core board |
| 2 | Door Frame | Material: 1.2mm galvanized steel plate Structure: One-time forming structure |
| 3 | Hinge Plate | Thickness: ≥3.0mm |
| 4 | Surface Treatment | Electrostatic powder spraying Wood-grain transfer printing for surface finish |
| 5 | Fire Resistance Performance | Class A: ≥1.5 hours Class B: ≥1.0 hour Class C: ≥0.5 hour |
| 6 | Thermal Insulation Grade | Grade: 4 |
| 7 | Compliance Standard | GB12955-2015 Fireproof Door |
| 8 | Non-removable Component Thickness | Thickness: ≥1.2mm |
| 9 | Reinforced Structural Component Thickness | Thickness: ≥3.0mm |
Product Features
1
Outstanding Fire Resistance
Manufactured according to National Standards, steel fire-rated doors come with various fire ratings (e.g., Class A, B, C), capable of withstanding high temperatures for over 210 minutes and effectively preventing fire spread.
2
Excellent Smoke Sealing
The sealed design of the door frame and leaf, along with high-temperature expansion sealing strips, ensures effective smoke control during a fire, reducing harm caused by toxic fumes.
3
Durable and Robust
Made with cold-rolled steel plates, offering high compressive and impact resistance while effectively withstanding external forces, thereby extending the service life.
4
Multi-Layer Structure Design
Filled with proprietary patented fireproof materials (e.g., magnesium oxide, magnesium chloride), enhancing fire resistance, corrosion resistance, and soundproofing for a balance between safety and comfort.
5
Aesthetic Appearance
Steel fire-rated doors can be customized with various surface treatments (e.g., powder coating, transfer printing) to blend seamlessly with diverse architectural and interior styles.
6
Convenient Installation & Maintenance
Professionally designed installation process for fast and easy setup; minimal maintenance required without complicated routines.
Structural Components
- Door Frame: Made from cold-rolled steel, ensuring stability and safety.
- Door Leaf: Typically consists of double-layered steel sheets filled with proprietary patented fireproof materials (e.g., magnesium oxide, magnesium chloride) for enhanced fire and corrosion resistance.
- Sealing Strips: Positioned at the interface between the door frame and leaf; expands under high temperatures to block smoke and flame penetration.
- Locks and Hinges: Equipped with high-temperature-resistant locks and hinges, ensuring smooth operation and enhanced security.
How to Choose the Right Steel Fire-Rated Door?
Choosing the appropriate steel fire-rated door is crucial for ensuring fire safety in buildings. Here are the key factors to consider:
1. How do I choose the correct Fire Rating?
Understanding Fire Ratings: Based on National Standards, fire-rated doors are categorized into Class A (120 minutes), Class B (60 minutes), and Class C (30 minutes). Select the rating according to the building’s fire safety requirements.
Applications: For public spaces with high foot traffic, Class A doors are recommended. For general passageways or storage rooms, Class B or C may suffice.
Applications: For public spaces with high foot traffic, Class A doors are recommended. For general passageways or storage rooms, Class B or C may suffice.
2. What should I look for in Material and Structure?
Door Leaf Material: Opt for high-strength cold-rolled or hot-rolled steel sheets for durability and impact resistance. Fireproof materials like rock wool enhance fire performance.
Sealing Design: Ensure proper sealing between the door frame and leaf. High-temperature expansion sealing strips significantly improve smoke and flame resistance.
Sealing Design: Ensure proper sealing between the door frame and leaf. High-temperature expansion sealing strips significantly improve smoke and flame resistance.
3. What Standards and Certifications are required?
Check Certifications: Verify compliance with national and industry standards (e.g., Building Fire Protection Code, Steel Fire-Rated Doors). Request quality inspection reports from suppliers.
Brand Reputation: Prefer reputable brands known for quality and after-sales support.
Brand Reputation: Prefer reputable brands known for quality and after-sales support.
4. What are the key Installation Requirements?
Professional Installation: Ensure installation is performed by qualified professionals to maintain performance and sealing. Look for suppliers that offer installation services.
Compatibility: Confirm door dimensions align with the building’s door frame for proper fit.
Compatibility: Confirm door dimensions align with the building’s door frame for proper fit.
5. How do Design and Aesthetics factor in?
Surface Treatment: Select finishes (e.g., coating, lamination) for visual appeal and corrosion resistance.
Color and Style: Match the door’s design to the overall architectural style for seamless integration.
Color and Style: Match the door’s design to the overall architectural style for seamless integration.
6. How to balance Budget, Cost-Effectiveness, and After-Sales Service?
Price Considerations: Balance quality and cost. While high-quality fire-rated doors may have a higher upfront cost, they reduce long-term maintenance and replacement expenses.
Value for Money: Evaluate fire resistance, materials, installation services, and other features to select a cost-effective product.
After-Sales Support: Understand the warranty terms, including coverage duration and details. Choose suppliers offering regular maintenance and inspection services to ensure long-term safety.
Value for Money: Evaluate fire resistance, materials, installation services, and other features to select a cost-effective product.
After-Sales Support: Understand the warranty terms, including coverage duration and details. Choose suppliers offering regular maintenance and inspection services to ensure long-term safety.


