• Grade B Steel Fire Door
  • Grade B Steel Fire Door
  • Grade B Steel Fire Door
  • Grade B Steel Fire Door
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Grade B Steel Fire Door

  • ZHONGTE
  • Jiangsu
  • 15days
60-min fire resistance ensures reliable safety. Steel sheet thickness enhances overall durability. Electrostatic coating resists rust and scratches. Fireproof rock wool core improves insulation.

Product Description

The Grade B Steel Fire Door is a practical choice for commercial and institutional buildings. With a fire resistance rating of up to 60 minutes, it effectively delays fire spread and smoke penetration. Its galvanized steel build provides excellent durability, while the fire-resistant infill enhances thermal insulation. Ideal for spaces that require reliable safety with everyday usability.

Grade B Steel Fire Door

medium duty fire door

Product Features

  • Provides balanced fire protection and durability

  • Galvanized steel structure for extended lifespan

  • Fire-resistant infill ensures insulation

  • Smooth surface finish resistant to scratches

  • Designed for medium-duty use environments

Specification Table


ComponentSpecificationFunction
Door Leaf0.8 mm galvanized steelSolid structure
Door Frame1.2 mm galvanized steelStrong support
Fire Resistance60 minutesReliable protection
Surface FinishPowder coatingSmooth & durable
Infill MaterialFire-resistant mineral coreHeat insulation
HardwareLock, hinges, latch boltSecure operation


steel safety door

Grade B Steel Fire Door

medium duty fire door

Product Advantages

  • Reliable fire resistance up to 60 minutes

  • Durable and cost-effective steel door solution

  • Corrosion-resistant coating for longer life

  • Easy to install and maintain

Application Scope

  • Commercial office spaces

  • Residential complexes

  • Educational facilities

  • Healthcare centers

  • Medium-scale industrial sites

Sizes and colors can be customized according to client requirements!

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