UL-Certified Insulated Steel Fire Door – 5.5h-1.0h Fire Rating High-Security Fireproof Door
UL 10C-certified insulated steel fire door with adjustable 1.0h to 5.5h fire rating. Mineral core, 16-gauge galvanized steel skin for data centers, industrial and high-security applications. Request a quote.
Description
UL-certified insulated steel fire door with adjustable fire rating
This UL 10C-listed steel fire door offers adjustable fire ratings from 1.0-hour up to 5.5-hour, tested at 5.5 hours and rateable down to 1.0 hour depending on specification. The insulated mineral core provides thermal barrier protection while the 16-gauge galvanized steel skin resists physical attack, making it suitable for high-security industrial and data-center applications where extended fire separation is mandatory.
Applications
- Data centers and server rooms with extended fire separation requirements
- Industrial facilities handling hazardous materials or processes
- Power generation plants and utility switchgear rooms
- High-security storage areas and vaults
Specification
- Material: 16-gauge (1.5mm) galvanized steel face sheets with mineral core
- Fire rating: Adjustable 1.0h to 5.5h (UL 10C, UBC 7-2, NFPA 252)
- Core: High-density mineral fiber with low thermal conductivity
- Seals: Perimeter intumescent seals with smoke threshold gasket
- Hardware prep: Drilled and tapped for heavy-duty closer, rim panic device, mortise cylinder
- Finish: Powder-coated primer (field-paintable) or factory finish
- Sizes: Standard up to 4ft x 8ft single, 8ft x 8ft double (custom sizes available)
Ordering information
Pricing starts at $600 USD FOB Guangzhou. Standard production is 15 to 20 business days. The package includes the door slab, frame, intumescent seals, certification documents and installation guide.
Related information
Detailed Specifications
| Material | Galvanized steel face, mineral wool core, intumescent seals |
|---|---|
| Fire Rating | 60, 90, 120 or 180 minutes (UL 10B/10C, BS 476, EN 1634-1) |
| Door Leaf Thickness | 44mm to 54mm depending on rating |
| Face Thickness | 16-gauge galvanized steel (1.5mm) |
| Opening Size | Custom; standard widths 700mm-2400mm, heights up to 2700mm |
| Hardware | Panic bar, lever handle, closer, fire-rated hinges and lockset |
| Finish | Powder-coated, wood-grain laminate, or stainless steel |
| Wall Type | Brick, concrete, drywall, steel stud |
| Frame | Steel frame with intumescent seal kit |
| Certification | ISO 9001, CE, UL, SGS |
| MOQ | 1 piece |
| Lead Time | 15-20 business days standard |
Frequently Asked Questions
Q: What fire rating do I need for my building?
A: Building codes typically require 60-90 minutes for corridors and stairwells, 120-180 minutes for data centers and industrial. Send your project standard (NFPA 80, UL, BS 476, EN 1634-1) and we confirm the rated assembly.
Q: Can the door match my wall finish?
A: Yes, we offer powder-coating in any RAL color, wood-grain laminate, and brushed stainless steel finishes.
Q: Is the complete assembly tested together?
A: Yes. Fire rating applies to the door leaf, frame, hardware and seals as a tested assembly. Changing any component beyond the tested range invalidates the rating.
Q: Do you supply export documentation?
A: Yes, commercial invoice, packing list, test reports and certificate of origin included in every order.
