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China Suppliers Stainless Steel Fire-Rated Doors - Durable, Aesthetic Solutions from Factory
Product Features
Fire Resistance Performance
The fire-resistant material independently developed by our company filled inside the door leaf, combined with the fire-resistant intumescent sealing strip between the door frame and the door leaf, can prevent flame penetration within the specified fire resistance time, ensuring that the heat insulation performance of the stainless steel fire-resistant door meets the temperature requirements of all levels.
Smoke Sealing
The gap between the door and frame is precisely controlled within 1–3 mm, and combined with a door closer, ensures the door remains securely closed. The fire-resistant intumescent seals maintain elasticity under normal conditions and expand tightly at high temperatures, effectively preventing the spread of toxic smoke through stainless steel fire-rated doors.
Durability & Strength
Constructed from high-grade 304 stainless steel, both the frame and door leaf offer superior corrosion and wear resistance. The reinforced door structure provides excellent impact resistance and long-term stability — resisting deformation or cracking without frequent maintenance — ensuring durability and safety over years of use.
Aesthetic Appearance
Aesthetically, the surface retains the metal's natural texture while allowing for custom finishes such as antique bronze or black coating, breaking the monotony of traditional stainless steel tones and complementing or contrasting with the surrounding architectural palette.
Installation & Maintenance
The frame is assembled on-site and secured with expansion bolts. Wall gaps are filled with cement mortar for solid anchoring. For routine maintenance, clean the surface using a soft cloth and neutral detergent; avoid steel wool or acidic/alkaline cleaners. Regularly inspect the hardware and sealing strips.
Fire Rating
Grade C
Fire integrity ≥ 30 mins, insulation ≥ 30 mins. Suitable for pipe shafts and cable shafts to block small fires.
Grade B
Fire integrity ≥ 60 mins, insulation ≥ 60 mins. Suitable for stairwells, antechambers, and evacuation routes.
Grade A
Fire integrity ≥ 90 mins, insulation ≥ 90 mins. Suitable for fire control rooms, power distribution rooms, and fan rooms.
Others
Fire integrity ≥ 120-180 mins, insulation ≥ 120-180 mins. Suitable for chemical workshops and tunnel escape exits.
Application Areas
Industrial Facilities
Public Institutions (Hospitals / Schools)
Commercial Buildings (Offices / Hotels)
Transportation Hubs (Airports / Rail)
Military and Security Facilities
Frequently Asked Questions
What materials are used in your stainless steel fire doors?
Our doors are constructed from high-grade 304 stainless steel and filled with independently developed fire-resistant insulation material for maximum safety and durability.
How do these doors prevent smoke from spreading?
We use fire-resistant intumescent sealing strips that expand at high temperatures to create a tight seal, effectively blocking toxic smoke and flames.
Are different fire ratings available for specific building requirements?
Yes, we provide Grade A (90+ mins), Grade B (60+ mins), and Grade C (30+ mins) ratings, as well as specialized doors rated for up to 180 minutes.
Can the appearance of the stainless steel door be customized?
Absolutely. While retaining the natural metal texture, we offer custom finishes like antique bronze or black coatings to match your architectural design.
What is the recommended maintenance for these fire doors?
Clean surfaces with a soft cloth and neutral detergent. Avoid abrasive tools like steel wool. Regularly inspect hardware and seals to ensure long-term functionality.
Where are these fire-rated doors typically installed?
They are ideal for high-traffic or high-security areas including hospitals, schools, commercial offices, industrial plants, and transportation hubs like airports.