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{"title":"OEM ODM 6mm 5000 6000 Series Pre Painted Aluminum Sheet","imgUrl":"https:\/\/img.chinax.com\/nimg\/d9\/5b\/bd4b744727e156ae49c65060b170-200x200-1\/oem_odm_6mm_5000_6000_series_pre_painted_aluminum_sheet.jpg","attrs":{"Brand Name":"Yongsheng","Model Number":"color Aluminum","Certification":"SGS","Place of Origin":"Henan China"}}
{"title":"10mm To 1600mm T3 T8 3105 Color Coated Aluminum Coils","imgUrl":"https:\/\/img.chinax.com\/nimg\/c4\/03\/cf59882d5214d604232fa303ba54-200x200-1\/10mm_to_1600mm_t3_t8_3105_color_coated_aluminum_coils.jpg","attrs":{"Brand Name":"Yongsheng","Model Number":"Color Coated Aluminum Coil","Certification":"SGS","Place of Origin":"China"}}
{"title":"O To H112 5.0mm PE PVDF Prepainted Aluminum Coil For Outdoor Roofing","imgUrl":"https:\/\/img.chinax.com\/nimg\/8e\/62\/3e214fda56d16173c044011dfbcf-200x200-1\/o_to_h112_5_0mm_pe_pvdf_prepainted_aluminum_coil_for_outdoor_roofing.jpg","attrs":{"Brand Name":"Yongsheng","Model Number":"Color Coated Aluminum Coil","Certification":"SGS","Place of Origin":"China"}}
{"title":"3.0mm 5005 Wooden Grain Color Coated Aluminum Coil For Building Decoration","imgUrl":"https:\/\/img.chinax.com\/nimg\/1a\/1e\/6d8c3011097eb19daa8587d6fb3f-200x200-1\/3_0mm_5005_wooden_grain_color_coated_aluminum_coil_for_building_decoration.jpg","attrs":{"Brand Name":"Yongsheng","Model Number":"Color Coated Aluminum Coil","Certification":"SGS","Place of Origin":"China"}}
3003 3004 3005 Durable Color Coated Aluminum Coil Roll for Gutter Coil
The most commonly used and ideal aluminum alloys for manufacturing gutter coils are AA3003, AA3004 and AA3005. Among them, AA3003 is the "gold standard" and the primary choice in this field. AA3003 is a typical heat-treatment-resistant aluminum-manganese alloy with composition approximately: manganese (Mn): 1.0 - 1.5%, copper (Cu): 0.05 - 0.20%, aluminum (Al): the remainder.
Material Comparison for Gutter Coil Manufacturing
Characteristics
AA3003 Aluminum
Galvanized Steel
PVC Plastic
Copper
Corrosion Resistance
Excellent (double protection)
Moderate (easily rusted at the cut)
Good (but prone to aging and brittleness)
Excellent (forms green copper oxide)
Life Expectancy
Extremely long (40+ years)
Medium
Medium
Extremely long
Weight
Light
Heavy
Light
Heavy
Cost
Medium (initial cost)
Low (initial cost)
Low (initial cost)
Extremely high
Life Cycle Cost
Low (no maintenance required)
High (requires painting maintenance)
Medium (requires replacement)
High
Aesthetics and Design
Abundant
Limited
Limited
Classic but Singular
Environmental Protection
High (can be infinitely recycled)
Medium
Medium
High
From the comparison above, color-coated aluminum sheets represent the optimal choice for downpipe systems, combining superior material properties, performance, and economic benefits.
Materials Science & Corrosion Resistance
This is the primary reason why color-coated aluminum is used for downspouts:
Natural corrosion resistance: Aluminum forms a dense oxide passivation film when exposed to air, preventing further contact with water and oxygen
Dual protection coating: Physical barrier and chemical inertness provide complete isolation from water, acid rain, and pollutants
Optimal alloy selection: Manganese-based alloys (3003, 3004, 3005) maintain excellent corrosion resistance while offering good formability
Surface Treatment & Aesthetics
Downspouts are important visual components that complement building facades:
Extensive color options: Available in any RAL color range with wood-grain and stone imitation effects
Long-lasting color retention: High-performance coatings resist UV degradation, maintaining brightness for decades
Consistent coating quality: Automated roller coating ensures uniform thickness and color consistency
Mechanical Properties & Workability
Gutter coils require specific mechanical properties for roll forming:
Excellent formability: Alloys in appropriate tempering states (H14, H24) can be bent into complex shapes without cracking
Superior strength-to-weight ratio: Lightweight design reduces installation labor and structural load requirements
Flexibility: Withstands slight collisions and thermal expansion without permanent deformation
Extended service life: PVDF-coated systems can last over 40 years with no maintenance required
Low total cost of ownership: Minimal maintenance and replacement costs make it the most cost-effective long-term solution
Environmental Sustainability
Modern building materials increasingly emphasize environmental attributes:
100% recyclable: Aluminum can be infinitely recycled using only 5% of the energy required for new production
Pollution-free operation: Rainwater runoff contains no contaminants, making it environmentally safe
Product Images
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2001
Total Annual:
30000000-35000000
Employee Number:
2000~3000
Ecer Certification：
Verified Supplier
Henan Yongsheng Aluminum Industry Co., Ltd. was established in 2001 and is located in the industrial cluster area of Gongyi City, Henan Province. It covers an area of 780,000 square meters and currently has 2,000 employees. Our factory have 9 cold rolling production lines, 41 casting rolling machine... Henan Yongsheng Aluminum Industry Co., Ltd. was established in 2001 and is located in the industrial cluster area of Gongyi City, Henan Province. It covers an area of 780,000 square meters and currently has 2,000 employees. Our factory have 9 cold rolling production lines, 41 casting rolling machine...
