Views: 0 Author: Site Editor Publish Time: 2025-06-06 Origin: Site
In the world of architectural and industrial materials, choosing the right sheet metal can significantly impact the performance, aesthetics, and cost - effectiveness of a project. Three popular options are anodized aluminum sheets, stainless steel sheets, and fluorocarbon sheets. This article will delve into their differences to help you make an informed decision.
The process of creating anodized aluminum sheets involves continuous oxidation and continuous electrolysis. Through electrochemical oxidation, a dense oxide film is formed on the aluminum surface. This not only enhances its corrosion resistance but also allows for customization of the oxide film's color and texture. For example, it can be made into various surface finishes like (satin), mirror, sub - mirror, wire drawing, and embossing.
Stainless steel sheets undergo surface treatment processes such as coating or vacuum plating. Common techniques include wire drawing, sandblasting, mirror polishing, and titanium plating. These processes rely on mechanical or plating methods to achieve the desired surface appearance. However, the uniformity of the surface can be affected by treatments like wire drawing or sandblasting.
Fluorocarbon sheets use a multi - layer spraying process. It includes primer, topcoat, and clear coat, with a coating thickness of at least 25 μm. The fluorocarbon coating can create effects such as solid color, metallic color, and wood grain, and the surface smoothness is adjustable. But the spraying process may lead to uneven edges, and large panels are prone to having an orange peel texture.
Comparison Content | Anodized Aluminum Sheet | Stainless Steel Sheet | Fluorocarbon Sheet |
Comparison Category | |||
Process | Continuous oxidation + continuous electrolysis (forms a dense oxide film through electrochemical oxidation) | Surface treatment processes (coating or vacuum plating, such as wire drawing, sandblasting, mirror polishing, etc.) | Fluorocarbon coating (multi - layer spraying process, including primer, topcoat, clear coat, coating thickness ≥ 25 μm) |
Sheet Thickness | 0.3 - 4mm (depends on panel size, can be customized) | 0.5 - 3mm (regular range, needs to be designed according to load - bearing requirements) | 0.8 - 4mm (substrate thickness, coating thickness additionally increases by about 0.02 - 0.05mm) |
Unit Weight | Lightweight (aluminum density 2.7g/cm³), suitable for lightweight design, low transportation cost | Heavy (density 7.9g/cm³), increases structural load - bearing burden | Lightweight (aluminum substrate density 2.7g/cm³), coating adds a small amount of weight (about 0.5 - 1kg/m²) |
Surface Treatment | Brushed, mirror, sub - mirror, wire drawing, embossing, etc. (oxide film layer color and texture can be customized) | Wire drawing, sandblasting, mirror, titanium plating, sandblasting, etc. (relies on mechanical or plating processes) | Fluorocarbon spraying (solid color, metallic color, wood grain, etc. effects, surface smoothness adjustable) |
Warranty Period | 15 - 20 years | 10 - 15 years | 10 - 15 years |
Combustion Performance | Class A1 | Class A1 | Class A1 |
Self - cleaning Property | Not easy to adsorb dust | Surface easy to adsorb oil stains, regular cleaning required | Not easy to adsorb dust |
Fingerprint Resistance | Resistant to fingerprints | Easy to leave fingerprints | Resistant to fingerprints |
Size Limitation | Width ≤ 1850mm, length unlimited | Width ≤ 1500mm, length ≤ 6000mm | Width up to 2000mm, length unlimited |
3D Form | Flat, single - curved, double - curved, cannot be welded | Flat, single - curved, double - curved, can be welded | Flat, single - curved, double - curved, cannot be welded |
Processing Performance | Excellent ductility, easy to cut, bend, stamp, etc., no secondary treatment needed after processing | High hardness, difficult to process | Aluminum substrate easy to process, but coating easy to scratch, re - painting needed for secondary processing |
Surface Quality | Uniform oxide film, high flatness | Wire drawing/sandblasting treatment affects its uniformity | Spraying process may cause uneven edges, large panels easy to have orange peel texture |
Safety | Ductile material, good safety | Rigid material, strong impact resistance but high brittleness | Ductile material, good safety |
Durability | High oxide film hardness, wear - resistant, scratch - resistant, good corrosion resistance | Easy to be corroded by chloride ions or scratched and rusted | Coating will partially fall off locally after a long time |
Cost | Comprehensive cost low, suitable for large - batch production | Raw material and processing costs are both high | Low raw material cost, relatively high process cost |
Anodized aluminum sheets have a thickness range of 0.3 - 4mm, and the thickness can be customized according to the panel size.
Stainless steel sheets typically range from 0.5 - 3mm. The thickness needs to be designed based on load - bearing requirements.
Fluorocarbon sheets have a substrate thickness of 0.8 - 4mm, with the coating thickness additionally increasing by about 0.02 - 0.05mm.
Anodized aluminum sheets are lightweight, with an aluminum density of 2.7g/cm³. This makes them suitable for lightweight design and helps reduce transportation costs.
Stainless steel sheets are heavy, with a density of 7.9g/cm³, which may increase the structural load - bearing burden.
Fluorocarbon sheets are also lightweight, as the aluminum substrate has a density of 2.7g/cm³. The coating only adds a small amount of weight (about 0.5 - 1kg/m²).
Anodized aluminum sheets offer a relatively long warranty period of 15 - 20 years, thanks to the stable oxide film.
Stainless steel sheets have a warranty period of 10 - 15 years.
Fluorocarbon sheets also have a 10 - 15 - year warranty period.
Anodized aluminum sheets are not easy to adsorb dust and are resistant to fingerprints, which helps maintain a clean appearance.
Stainless steel sheets have a surface that is easy to adsorb oil stains and requires regular cleaning, and they are also easy to leave fingerprints.
Fluorocarbon sheets are not easy to adsorb dust and are resistant to fingerprints.
Anodized aluminum sheets have a width limitation of ≤ 1850mm, but the length is unlimited.
Stainless steel sheets have a narrower width limitation (≤ 1500mm) and a length limitation of ≤ 6000mm.
Fluorocarbon sheets can have a width of up to 2000mm, and the length is unlimited.
Anodized aluminum sheets can be made into flat, single - curved, and double - curved forms but cannot be welded. They have excellent ductility, are easy to cut, bend, and stamp, and no secondary treatment is needed after processing.
Stainless steel sheets can also be made into flat, single - curved, and double - curved forms and can be welded. However, they have high hardness, making processing difficult.
Fluorocarbon sheets can be made into flat, single - curved, and double - curved forms but cannot be welded. The aluminum substrate is easy to process, but the coating is easy to scratch, and re - painting is needed for secondary processing.
Anodized aluminum sheets have a uniform oxide film and high flatness. The oxide film has high hardness, is wear - resistant, scratch - resistant, and has good corrosion resistance.
Stainless steel sheets may have their uniformity affected by (brushed)/sandblasting treatment. They are easy to be corroded by chloride ions or scratched and rusted.
Fluorocarbon sheets may have uneven edges due to the spraying process, and large panels are prone to orange peel texture. The coating may partially fall off locally after a long time.
Anodized aluminum sheets have a low comprehensive cost and are suitable for large - batch production.
Stainless steel sheets have high raw material and processing costs.
Fluorocarbon sheets have low raw material costs but relatively high process costs.
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