Aluminum Sheet

Aluminum sheet is a flat-rolled metal product with thickness typically ranging from 0.2 mm to 200 mm, widely used due to its:

• Lightweight (1/3 of steel)
• Excellent corrosion resistance
• Good formability and weldability
• High strength-to-weight ratio

It is widely applied in roofing, shipbuilding, fuel tanks, curtain walls, and industrial equipment.

Different manufacturing projects require different aluminum alloys. Here are our main supply categories:

• 1000 Series (Pure Aluminum - e.g., 1050, 1060): Excellent formability and corrosion resistance. Mainly used for chemical equipment, food industry containers, lighting reflectors, and signboards.
• 3000 Series (Al-Mn Alloy - e.g., 3003, 3004): Known as rust-proof aluminum. Widely used for roofing panels, corrugated sheets, cookware (pots and pans), and aluminum cans.
• 5000 Series (Al-Mg Alloy - e.g., 5052, 5083): High strength and excellent marine-grade corrosion resistance. Perfect for shipbuilding, truck fuel tanks, electrical enclosures, and pressure vessels.
• 6000 Series (Al-Mg-Si Alloy - e.g., 6061, 6082): Heat-treatable with high structural strength. Ideal for precision machining parts (CNC), structural components, and automotive parts.

 

Aluminum Sheet Applications & Recommended Alloys

 

Construction & Roofing

Alloys: 3003 / 3004

Thickness: 0.5 – 3.0 mm
Surface: coated / corrugated

Common Uses:

Roofing sheets for factories and houses
Wall cladding panels
Ceilings and insulation layers

read more:

3003 H14 aluminum sheet for roofing
3004 aluminum sheet for wall panels

Marine & Shipbuilding

Alloys: 5083 H116 / 5086 H32

Thickness: 3–50 mm

 

Common Uses:

Small boats and fishing boats
Ship decks and side plates
Marine structures

read more:

5083 H116 marine aluminum plate
5086 H32 aluminum sheet

Tank & Container

Alloys: 5052 / 5083
Thickness: 2–50 mm

 

Common Uses:
Fuel tanks (trucks, machinery)
Water tanks
Chemical containers

read more:

5052 H32 aluminum sheet for tanks
5083 aluminum plate for larger tanks

Industrial & Machinery

Alloy: 6061
Thickness: 2–200 mm

Common Uses:

CNC machined parts
Equipment frames
Base plates

read more:

6061 T6 aluminum plate

 

 

Table 1: International Standard Equivalents

Table 2: Chemical Composition Limits

(Strictly conforms to ASTM B209 limits. Elements not listed are within standard trace limits.)

(Note for 1100 Alloy: The combined limit of Silicon and Iron is 0.95% Max.)

Table 3: Typical Mechanical Properties

(Reference values for typical sheet thickness of 1.0mm - 3.0mm)

(Disclaimer: The mechanical properties mentioned above are for reference based on standard testing. Actual values may vary slightly depending on the exact thickness ordered. An official Mill Test Certificate (MTC) showing the exact heat batch data will be provided for every order before shipment.)

Advanced Laboratory Testing:

• Chemical Composition Analysis: We use Optical Emission Spectrometers (OES) to test the chemical makeup of every heat batch. This guarantees the alloy purity and ensures you get exactly the grade you ordered, with no unauthorized scrap mixed in.
• Mechanical Property Testing: Our lab conducts rigorous tensile tests to verify Tensile Strength, Yield Strength, and Elongation. We ensure the material will not crack or fail during your stamping, deep drawing, or CNC machining processes.
• Ultrasonic Testing (UT): For thick aluminum plates (especially 5083, 6061, and 7075 series), we perform UT flaw detection to ensure there are no internal micro-cracks, porosity, or inclusions.

Processing & Dimensional Control:

• Strict Tolerance Inspection: Thickness is strictly monitored online using laser gauges and verified with micrometers (e.g., standard ±0.02mm tolerance). High-precision tolerance can be customized for critical applications.
• Dead-Flat Surface Control: Processed through advanced tension leveling machines, our aluminum sheets remain perfectly flat with no waving or buckling, which is highly critical for your fiber laser cutting efficiency.
• 100% Visual Surface Check: Every sheet is inspected under high-visibility lighting to eliminate roll marks, oil spots, or scratches.

Value-Added Processing Services:

• Surface Protection Options: We provide customized protective films (blue/clear/black/white PE/PVC, 50-100 microns) or special laser-cutting films that leave zero adhesive residue.
• Third-Party Inspection (TPI): We openly welcome pre-shipment inspections by international agencies such as SGS, BV, TUV, or DNV (for marine-grade plates).
• Cut to size
• Slitting
• Bending
• Punching
• CNC machining

Transparent Pricing System

We offer reasonable and transparent prices based on the real-time market:

Price Formula = SMM (Shanghai Metals Market) Pure Aluminum Ingot Price + Factory Processing Fee

Standard Export Sea-worthy Packaging

Our Standard 4-Layer Export Packaging:

• Surface Isolation: Sheets are interleaved with craft paper or covered with PE/PVC film to prevent metal-to-metal scratching caused by transit vibrations.
• Moisture Barrier: The entire stack is tightly wrapped in a transparent plastic film, followed by a layer of thick, waterproof brown kraft paper. Desiccants (silica gel) are strategically placed inside to absorb any trapped moisture.
• Physical Protection: Hardboard or galvanized steel edge protectors are applied to all corners and edges to prevent denting from strapping or bumping.
• Secure Palletization: The sheets are placed on strong, IPPC-compliant fumigated wooden pallets. Finally, they are firmly secured to the pallet using heavy-duty steel or PET strapping in a cross-grid pattern, ensuring zero shifting inside the container.

Tailor-Made Packaging to Fit Your Warehouse:

Every client’s unloading equipment and storage facility is different. You can fully customize the packaging method when placing your order:

• Pallet Weight Limits: Standard pallets are packed at 1.5 to 2.5 Tons. If your warehouse forklift has a limited lifting capacity, tell us! We can pack them strictly under 1.0 Ton or 1.5 Tons per pallet.
• Pallet Design: You can request customized pallet heights or 4-way forklift entry designs for easier warehouse maneuvering.
• Custom Shipping Marks: We can print and attach your specific company logo, PO number, or barcodes on the outer packaging for fast scanning and inventory management.
• Wood-Free Options: If your country has strict customs regulations regarding solid wood, we can use fully fumigation-free plywood pallets upon request.

20ft Container Loading Guide

(Helpful for calculating your shipping costs)

How to buy from GNEE:

• Send RFQ: Inform us of your required Alloy, Temper, Thickness, Dimensions, and Quantity.
• Get a Quote: We provide an official quotation within 24 hours.
• PI & Deposit: Confirm the price, sign the Proforma Invoice, and arrange a 30% T/T deposit. (100% L/C at sight is also acceptable for orders over $50,000).
• Production & Inspection: Lead time is usually 15-25 days. We test thickness and provide MTC after production.
• Balance & Shipment: Pay the 70% balance. We load the containers and send you the B/L.

We're professional aluminum sheet manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to wholesale discount aluminum sheet for sale here from our factory. For price consultation, contact us.