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China's Top Suppliers of Durable Steel Fireproof Doors from a Leading Factory for Maximum Safety and Fire Resistance
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.
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Applications: High-end buildings, hotels, restaurants, hospitals, industrial plants, shopping centers, entertainment venues, etc.
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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
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.
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.
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.
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.
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.
Convenient Installation and 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 some key factors to consider:
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.
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.
Standards and Certifications
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.
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.
Design and Aesthetics
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.
Budget and Cost-Effectiveness
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 Service
Warranty Policies:
Understand the warranty terms, including coverage duration and details.
Maintenance Support:
Choose suppliers offering regular maintenance and inspection services to ensure long-term safety.
By considering factors such as fire rating, materials, installation, design, budget, and after-sales support, you can confidently select a steel fire-rated door tailored to your needs, ensuring safety for life and property.
Frequently Asked Questions
What materials are used to construct steel fire-rated doors?
Our steel fire-rated doors are crafted from premium galvanized steel sheets (0.8mm for the door leaf and 1.2mm for the door frame). The interior of the door leaf is filled with high-density, environmentally friendly fire-rated insulation core board, such as magnesium oxide or magnesium chloride, to enhance fire and corrosion resistance.
What fire ratings and classes are available for these doors?
The doors are classified based on fire resistance duration: Class A provides a fire rating of ≥ 1.5 hours (up to 120 minutes), Class B offers ≥ 1.0 hour (60 minutes), and Class C offers ≥ 0.5 hour (30 minutes). This allows you to choose the appropriate door based on specific building safety codes.
How does the door seal prevent toxic smoke from spreading?
The doors feature specialized high-temperature expansion sealing strips positioned at the interface between the door frame and the leaf. In the event of a fire, these strips expand under high temperatures to create an airtight seal, effectively blocking smoke and toxic flame penetration.
Can the size, colors, and configurations of the doors be customized?
Yes, we offer fully customizable colors, surface finishes (such as electrostatic powder spraying and wood-grain transfer printing), and opening configurations (single-leaf, double-leaf, and unequal-leaf). We also specialize in extra-large steel fire-rated doors up to 3M x 3M for industrial and warehouse facilities.
What building types are these steel fire doors suitable for?
They are ideal for high-end buildings, hotels, restaurants, hospitals, industrial plants, shopping centers, entertainment venues, warehouses, and industrial facilities where fire containment and security are critical.