Hebei Hong'an Fire Door Co., Ltd. is one of the most reliable manufacturers and suppliers of stainless‑steel fire‑rated door in China. If you're going to buy durable stainless‑steel fire‑rated door made in China, welcome to get free sample from our factory. All customized products are with high quality and low price.
Core Definition of Stainless‑Steel Fire‑Resistant Door
A stainless‑steel fire‑resistant door is a fixed fire‑separation component for fire‑fighting purposes. It adopts high‑quality stainless‑steel sheets as the facing material for door leaf and door frame, filled with inorganic fire‑insulation core material inside, and equipped with special fire‑rated hardware fittings. Manufactured via professional processes, it delivers specified fire‑resistance rating, air‑tightness and evacuation‑related functions. Different from ordinary decorative stainless‑steel doors, it must obtain national CCC certification for fire‑fighting products, with its fire resistance, structural strength and sealing performance complying with fire‑protection codes. It is far more than a simple decorative door‑and‑window component.
According to fire‑resistance rating, it is classified into Grade‑A, Grade‑B and Grade‑C for different fire compartments and evacuation passages: Grade‑A (fire resistance ≥1.5 h) for key separation positions such as equipment rooms and fire‑compartment partition walls; Grade‑B (fire resistance ≥1.0 h) mainly for evacuation passages including stairwells and anterooms; Grade‑C (fire resistance ≥0.5 h) mostly used for auxiliary separation of cable shafts, ventilation shafts and similar areas.
Products Description
The biggest weakness of conventional cold‑rolled steel fire‑resistant doors is poor corrosion resistance. In humid, poorly‑ventilated, salt‑spray or acid‑alkali environments, paint peeling, rusting and even rust‑through defects may occur within 3‑12 months. This further causes door‑leaf deformation, excessive smoke leakage through door gaps and jammed, failed hardware. Frequent rectification and maintenance are required in later service, raising project costs and potential fire‑safety hazards. Stainless‑steel fire‑resistant doors solve the above‑mentioned pain points and feature remarkable strengths.
1.Superior corrosion resistance and long‑term stability
304 and 316L stainless steel deliver natural anti‑rust, salt‑spray‑resistant and acid‑alkali‑resistant properties. Under corrosive‑humid working conditions such as underground car parks, coastal buildings, hospitals and chemical‑industry supporting facilities, they can remain free of obvious rust stains for 10‑20 years. Door gaps will not expand or deform due to corrosion, and reliable smoke‑sealing performance can be sustained, fundamentally preventing fire‑protection failure risks.
2.Robust structure and excellent anti‑deformation performance The integrated CNC forming process ensures high structural integrity of door frames and door leaves. Stainless‑steel material offers higher rigidity than ordinary carbon steel, so it is less prone to distortion under high‑temperature fire conditions. It can steadily maintain the fire‑separation boundary and avoid flame‑smoke penetration caused by door‑leaf deformation, achieving far better fire‑resistance stability than ordinary steel fire‑resistant doors.
3.Low‑frequency maintenance and lower comprehensive cost Conventional steel fire‑resistant doors demand annual rust removal, repainting and hardware upkeep, resulting in high after‑sales maintenance costs and frequent acceptance rectification issues. Stainless‑steel fire‑resistant doors require infrequent servicing, and their hardware keeps smooth opening‑closing performance for years. Once installed, they can stay compliant long‑term, effectively cutting later‑stage maintenance and rectification expenses and providing higher cost‑effectiveness for projects.
4.Balanced appearance and functionality, ideal for high‑end projects
Stainless steel supports diversified surface finishes including brushed, mirror and antique‑effect treatments to match various architectural decoration styles. Breaking the limitation of rough‑looking traditional fire‑resistant doors, they satisfy strict fire‑protection codes while providing decorative effects, perfectly meeting aesthetic requirements of high‑end public‑construction projects.
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