Metal doors are a type of door product mainly made of metals such as steel, aluminum alloy and stainless steel, and are widely used in residential, commercial and industrial fields. Its characteristics such as being sturdy and durable, safe and anti-theft, fireproof and moisture-proof make it one of the preferred door types in modern buildings. The following is the product detail description of the metal door:
1. Product structure and composition
Metal doors are usually composed of the following core components:
Material and function of the structural layer
The outer metal plate is made of high-quality cold-rolled steel plate (with a thickness of 0.8-1.5mm), stainless steel or aluminum alloy, providing impact resistance and anti-theft performance.
The inner filling materials include honeycomb paper (economical type), polyurethane foam (thermal insulation and soundproofing), rock wool (fireproof and soundproofing), etc., to enhance functionality.
Strengthen the steel frame or aluminum alloy frame to enhance the overall structural stability and prevent deformation.
The lock system features C-level anti-theft lock cores, multi-point locks, top and bottom locks, etc., enhancing the security level.
High-elastic rubber or silicone rubber sealing strips enhance sound insulation, dust-proof and wind-proof effects.
Surface treatments include electrostatic powder coating (anti-rust and scratch-resistant), fluorocarbon paint (strong weather resistance), wood grain transfer printing (imitation of solid wood appearance), etc.
2. Product classification
According to different uses and materials, metal doors can be classified into the following categories:
(1) Classified by material
Steel doors: Economical and practical, with strong anti-theft performance, suitable for entrance doors, fireproof doors, etc.
Stainless steel door: Corrosion-resistant and oxidation-resistant, suitable for humid or coastal areas.
Aluminum alloy doors: Lightweight and rust-resistant, they are often used for indoor partitions or commercial Spaces.
Copper doors: High-end and elegant, with strong anti-oxidation properties, are often used in high-end places such as villas and hotels.
(2) Classification by function
Category characteristics
The anti-theft door complies with the national anti-theft standard (GB17565) and is equipped with C-level locks, which are resistant to prying and damage.
The fireproof door has passed the fire protection certification (Class A/Class B/Class C), with a fire resistance limit of 0.5 to 3 hours, and is suitable for fire escape routes.
The soundproof door is filled with soundproof materials (such as rock wool, polyurethane), with a sound insulation of over 30dB, and is suitable for cinemas, recording studios, etc.
The insulated door adopts an insulating layer and is suitable for low-temperature environments such as cold storage and constant-temperature workshops.
The surface of the decorative metal door imitates wood grain, carvings, glass inlays, etc., which is both beautiful and practical.
3. Product Parameters (Taking standard security doors as an example)
Parameter item specification/description
The thickness of the door leaf is 50mm-120mm (the thicker it is, the better the sound insulation and anti-theft performance).
Steel plate thickness: 0.8mm (standard), 1.0mm (mid-range), and over 1.2mm (high-end anti-theft door)
Filling materials: honeycomb paper (economical), polyurethane (insulation), rock wool (fireproof and soundproof)
Lock grades: Grade A (basic), Grade B (mid-range), Grade C (highest anti-theft grade, anti-technical opening ≥10 minutes)
Opening and closing methods: swing door, sliding door, folding door, and double door (double opening type)
Surface treatment: electrostatic spraying (anti-rust), wood grain transfer (imitation solid wood), fluorocarbon paint (weather-resistant)
Fire resistance grades: Class A (≥1.5 hours of fire resistance), Class B (≥1.0 hours), Class C (≥0.5 hours)
4. Product Advantages (Supplementary)
Anti-theft safety: Complies with national anti-theft standards, resistant to prying, sawing and impact.
Fireproof and flame-retardant: Some products have passed fire protection certification, delaying the spread of fire.
Sound insulation and heat preservation: Hollow + filled structure, effectively reducing noise (30-50dB) and providing heat preservation.
Strong weather resistance: It does not deform in an environment ranging from -30℃ to 70℃, suitable for all kinds of climates.
Environmentally friendly and durable: The metal is recyclable, free of formaldehyde, and has a service life of 10 to 20 years.
5. Applicable scenarios
Household: Anti-theft entrance door, balcony door, garage door
Business: Fire doors for banks, shopping malls and office buildings
Industry: Soundproof doors for factories, anti-theft doors for warehouses
Public facilities: Fire and explosion prevention doors for hospitals, schools and subway stations
6. Purchasing suggestions
Check the material: Steel plates with a thickness of 1.0mm or more are preferred. Stainless steel or aluminum alloy are more corrosion-resistant.
Check the certification: For anti-theft doors, recognize the "GA/T 73" standard. Fireproof doors need to have the "Fire Protection Certification".
Lock test: C-level lock core + multi-point lock for greater security.
Sound insulation test: The sound insulation effect is better when filled with polyurethane or rock wool.
When it comes to after-sales service: Choose a brand that offers a warranty of more than five years.
Summary
Metal doors have become an important choice in modern architecture due to their advantages such as safety, durability and multi-functionality. Users can choose the appropriate material, thickness and functional configuration according to their actual needs (such as anti-theft, fireproof, sound insulation, etc.) to ensure the best user experience.
