Steel fireproof doors are essential safety features in buildings, constructed using steel raw materials for durability and fire resistance. These doors are composed of door frames, door leaf frames, and door leaf control panels, reinforced with fireproof insulation materials for added safety.

Characterized by a smooth and aesthetically pleasing surface, steel fireproof doors come in various styles to suit different preferences. They are designed for convenient operation and reliable closing, ensuring ease of use and enhanced safety features. The durability of steel fireproof doors guarantees long-lasting fire resistance, providing crucial protection for occupants in case of emergencies.

Steel fireproof doors are classified into different grades based on their fire resistance time. Grade A steel fireproof doors offer a fire resistance time of at least 1.5 hours, using ceramic materials or fireproof boards for interior construction. Grade B and Grade C steel fireproof doors provide fire resistance times of 1.0 hour and 0.5 hours, respectively, with specific requirements for hardware accessories to meet safety standards.

Our company specializes in the production and distribution of special glass products, including explosion-proof windows and doors. We prioritize innovation and technical advancements to ensure the highest quality and safety standards in our products. Our focus on preventing and managing explosive incidents underscores our commitment to safeguarding human society and ensuring customer satisfaction through meticulous attention to detail.

Definition of Steel Fire Doors

Definition of Steel Fire Doors:Steel fireproof doors are essential safety features in buildings, constructed using steel raw materials for durability and fire resistance. These doors are composed of door frames, door leaf frames, and door leaf control panels, reinforced with fireproof insulation materials for added safety

Understanding Steel Fire Doors: YK’s Engineered Safety Solutions

YK Fire Door, a leading UK supplier of certified fire-rated doors, delivers precision-engineered steel fire doors that combine structural integrity with critical fire resistance. Unlike standard doors, our fire-rated steel doors integrate cold-rolled steel panels, mineral wool insulation, and intumescent seals—key components that enable them to withstand extreme temperatures while maintaining compartmentalization.

Fire-Resistant Stainless Steel Door Innovations

YK’s stainless steel fire doors redefine safety aesthetics without compromising functionality. Featuring laser-cut edges and UL-certified hinges, these doors achieve seamless closure even under warping stress. Our R&D team optimizes door leaf configurations to exceed BS 476-22 standards, offering three performance tiers:

  • 30/60/90-minute fire door ratings tailored to building occupancy types
  • Smoke-blocking thresholds with <3.5 N opening force compliance
  • Multi-axis testing validating stability at 750°C for 90+ minutes

Decoding Fire Resistance Classifications

As a trusted fire resistance door manufacturer, YK categorizes steel doors based on rigorous UKCA/CE testing protocols:

  1. FD30 (Grade A Equivalent): 30-minute integrity with ceramic fireboard cores
  2. FD60 (Grade B Equivalent): 60-minute protection using graphite-enhanced seals
  3. FD90 (Grade C Equivalent): 90-minute defense via multi-layer steel laminates
steel fire door
steel fire door

Each tier incorporates UL fire door testing parameters, including hose stream tests and positive pressure endurance. Our hardware selection process mandates 5,000+ cycle testing on hinges and panic bars to ensure alignment with fire door rating requirements.

YK’s Technical Edge in Fire Safety

Specializing in hybrid fire-rated door solutions, Definition of Steel Fire Doors,we merge ballistic-grade steel with ceramic nanocomposites. Our explosion-resistant windows feature:

  • 3-stage pressure relief systems meeting EN 13501-2
  • Electrochromic glass with automatic smoke-triggered opacity
  • UL fire-rated door certification compliance across US/EU/UK markets

This technical synergy allows YK to deliver doors achieving both BS EN 1634-1 fire resistance and EN 1125 emergency exit compliance—a dual certification held by <12% of UK suppliers.

Fire Resistance Stainless Steel Door
Fire Resistance Stainless Steel Door

Characterized by a smooth and aesthetically pleasing surface, steel fireproof doors come in various styles to suit different preferences. They are designed for convenient operation and reliable closing, ensuring ease of use and enhanced safety features. The durability of steel fireproof doors guarantees long-lasting fire resistance, providing crucial protection for occupants in case of emergencies.

Steel fireproof doors are classified into different grades based on their fire resistance time. Grade A steel fireproof doors offer a fire resistance time of at least 1.5 hours, using ceramic materials or fireproof boards for interior construction. Grade B and Grade C steel fireproof doors provide fire resistance times of 1.0 hour and 0.5 hours, respectively, with specific requirements for hardware accessories to meet safety standards.

Where are steel fire doors used?

1. Fire rated doors for stairwells in high-rise buildings

high-rise buildings

Stairwells are critical escape routes in any high-rise structure. Installing fire rated doors at stairwell entrances helps contain fire and smoke, protecting evacuation paths and allowing occupants to exit safely. These doors must be easy to open from the inside without keys, ensuring compliance with fire safety regulations.


2. Fire rated doors for building front rooms and entry areas
The front rooms of residential or commercial buildings often serve as buffer zones between public corridors and private spaces. A certified fire rated door at this location can prevent the rapid spread of fire into the unit, offering valuable time for evacuation and fire department intervention.


3. Fire rated doors for walkways and common corridors
Corridors that connect different units or sections of a building need to remain passable during emergencies. Fire rated doors installed along these passageways act as barriers against fire and toxic smoke, keeping evacuation routes safe and accessible under high heat and pressure conditions.


4. Fire rated doors between parking garages and interior spaces
Basement or ground-level parking areas pose a higher fire risk due to vehicle-related hazards. Installing fire rated doors between the garage and interior living or commercial spaces helps isolate potential fire outbreaks and limits the spread of smoke into occupied zones.


5. Fire rated doors for elevator lobbies and equipment rooms
Elevator lobbies and mechanical rooms often contain essential systems and wiring. Fire rated doors in these areas help compartmentalize fire events and protect critical infrastructure, ensuring that building operations and emergency systems can continue functioning as long as possible during a fire.

Our company specializes in the production and distribution of special glass products, including explosion-proof windows and doors. We prioritize innovation and technical advancements to ensure the highest quality and safety standards in our products. Our focus on preventing and managing explosive incidents underscores our commitment to safeguarding human society and ensuring customer satisfaction through meticulous attention to detail.

steel fire door with UL,CE marks
steel fire door with UL,CE marks

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