Aluminum Coil Roll 3003 H14 0.8mm 300mm Anti Corrosion Rain Gutter Downspout Strip

Our Aluminum Coil Roll is produced from 3003 manganese alloyed aluminum, delivering roughly 20% higher strength than 1050 together with far better corrosion resistance in wet outdoor service. Supplied in H14 temper at 0.8mm thickness and 300mm slit width, this anti corrosion gutter coil feeds rain gutter roll formers and downspout lines directly.

The mill finish aluminium roll strip is precision slit with burr-free edges and controlled camber, so the formed gutter profile stays straight along the full coil length and locks together cleanly at the seams. Optional PE or PVDF color coating is available when a finished appearance is required.

As an aluminum processing factory with full-process production capability, we supply custom slit aluminum roll in continuous coil form with 3000 tons monthly capacity. Free test samples are available for buyers to verify salt spray performance, coating adhesion and forming quality before mass orders.

• Product Name: Aluminum Coil Roll
• Alloy: 3003, 3005, 3105
• Temper: H14, O, H24, H16
• Thickness: 0.8 mm (0.3 - 3.0 mm range)
• Width: 300 mm slit, 20 - 1500 mm available
• Corrosion Resistance: salt spray 500 hours
• Surface: Mill finish, PE or PVDF coating optional
• Edge: Burr-free precision slit edge
• Formability: stable on high speed gutter forming lines
• Coil ID: 508 mm or 76 mm
• Certification: ASTM B209, EN 573, ISO 9001:2015
• Extra Service: custom slitting, free sample

This anti corrosion gutter coil is engineered for outdoor building envelope applications.

1. Rain Gutter: 0.8mm 3003 strip forms seamless gutter runs with high strength against snow load and wind uplift.
2. Downspout: uniform mechanical properties allow continuous roll forming of square and round downspout sections.
3. Roofing and Cladding: used for roof edge trim, flashing and wall cladding panels in coastal and humid climates.
4. Curtain Wall and Facade: mill finish or coated strip for facade trim and window surround profiles.
5. Awning and Canopy: lightweight corrosion resistant sheet for awnings, canopies and carports.

Yongsheng supplies customized aluminum coil rolls with thickness from 0.3mm to 3.0mm, widths from 20mm to 1500mm and coil weights from 500kg to 3000kg. All production follows ASTM B209 and EN 573 specifications with ISO 9001:2015 quality management.

Custom alloy, temper, width tolerance, surface finish, coating color, edge condition and packaging are available. Precision slitting and cut-to-length services are provided to meet project-specific requirements.

All customized coils can be shipped from major Chinese seaports with a stable 3000 tons monthly supply capacity.

As an aluminum processing factory with full-process production capabilities, we maintain comprehensive control over raw material quality and production technology. Whether it is precision slit coils for forming lines or custom sized rolls for appliance manufacturing, we deliver stable and reliable OEM/ODM solutions for our customers.

We provide full professional technical support for every buyer. Complete mill test certificates, material certificates and application guides are provided for factory audit and customs clearance.

Our technical team offers targeted guidance on alloy selection, temper choice and dimensional tolerance specification. Custom slitting and cut-to-size services can be produced as requested.

Strict full-batch quality control guarantees stable mechanical properties and dimensional accuracy. Our after-sales team delivers fast problem solving and long-term technical consultation.

Each coil is protected with PE film, moisture-proof paper and foam edge protectors, then packed onto export-standard wooden pallets or steel-framed crates.

Reinforced packaging prevents surface scratches and coil deformation during long ocean transportation. Clear shipping marks and full cargo documents are attached for easy customs clearance.

We cooperate with trusted logistics providers and support sea shipment to global destinations with a 7-15 day lead time.

Q1: What is the MOQ?
2 tons per order. Trial orders with smaller quantity are negotiable.

Q2: Can I get a sample?
Yes, free sample is available for evaluation; customer only pays the freight.

Q3: What is the delivery time?
7-15 days after deposit for standard sizes; custom specifications may take a little longer.

Q4: Do you support OEM / ODM?
Yes, we customize alloy, temper, size, surface finish, coating color, logo and packaging.

Q5: Is 3003 suitable for outdoor gutter?
Yes. The manganese addition gives 3003 clearly better corrosion resistance and strength than 1050, which is why it is the standard choice for gutter and downspout.

Q6: What certifications do you hold?
ISO 9001:2015, SGS, ASTM B209 and EN 573, with strict QC for every production batch.

Q7: How do you guarantee quality?
We run full-process inspection with advanced testing equipment, controlling thickness tolerance, salt spray performance and edge quality on every batch.

Q8: What payment terms do you accept?
L/C, D/P and T/T.

Every batch of this aluminum coil roll is produced under an ISO 9001:2015 quality management system and inspected against ASTM B209 and EN 573 for chemical composition, mechanical properties and dimensional tolerance. Documents are issued together with the shipment so buyers can clear customs and pass factory audits without extra paperwork.

• Mill Test Certificate: EN 10204 3.1 certificate with heat number traceability issued for every coil
• Third Party Inspection: SGS, BV or Intertek pre-shipment inspection supported on request
• RoHS and REACH: rolling oil, coating and packing materials free of restricted substances
• Customs Documents: certificate of origin, packing list and commercial invoice supplied with the bill of lading
• Quality Guarantee: thickness, width, tensile strength and surface re-checked before loading, with written claim response within 48 hours

For food contact and kitchenware projects, 3003 and 3105 coils can be supplied with food grade coating and a food contact declaration meeting EU 10/2011 and FDA requirements. For building projects, salt spray and coating adhesion test reports are issued per batch.