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Help CenterAluminum Plate 3003 H14 4x8 Sheet 0.032-0.125 Inch for Marine and Automotive
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Welcome to Hemaokang Steel (Shandong) Co., Ltd. – your reliable partner for premium aluminum solutions. Since our establishment in 2025, we have rapidly grown into a global supplier with an annual export value of US$50 Million – US$100 Million and a dedicated team of 51–100 employees. Our Aluminum Plate 3003 H14 4x8 Sheet in thicknesses from 0.032 to 0.125 inch is engineered specifically for demanding marine and automotive applications. Combining excellent corrosion resistance, formability, and weldability, this product delivers consistent performance that our customers trust across North America, South America, Europe, Asia, Africa, and Oceania.
Product Overview
The 3003 aluminum alloy is a non-heat-treatable grade known for its moderate strength and outstanding workability. The H14 temper provides a strain-hardened state that balances strength and ductility, making it ideal for forming, bending, and stamping processes. Each sheet is supplied in the standard 4x8 foot dimension (1220mm x 2440mm) with precise thickness control within the 0.032–0.125 inch range. Our manufacturing process adheres to ASTM B209 specifications, ensuring tight tolerances and a smooth mill finish suitable for further fabrication or direct use.
| Property | Value |
| Alloy | 3003 |
| Temper | H14 |
| Thickness Range | 0.032 – 0.125 inch (0.813 – 3.175 mm) |
| Standard Size | 4 ft x 8 ft (1220 x 2440 mm) |
| Surface | Mill Finish |
| Tensile Strength (typical) | 130 – 185 MPa (19 – 27 ksi) |
| Elongation (typical) | 10 – 20% |
| Applicable Standard | ASTM B209 |
Key Features & Benefits
- Excellent Corrosion Resistance: The 3003 alloy offers superior resistance to moisture, saltwater, and chemicals, making it a top choice for marine environments like boat hulls, fuel tanks, and deck panels.
- Outstanding Formability: H14 temper provides a good balance of strength and ductility, allowing easy bending, stamping, and drawing without cracking – perfect for automotive body panels, brackets, and trim parts.
- Good Weldability: 3003 aluminum can be welded using common techniques (TIG, MIG, resistance welding) with minimal loss of corrosion resistance, simplifying fabrication.
- Lightweight & Durable: At about one-third the weight of steel, this sheet reduces overall weight in marine vessels and vehicles, improving fuel efficiency and payload capacity while maintaining structural integrity.
- Precise Thickness Control: Our sheets are rolled with tight tolerances (±0.002 inch for thinner gauges), ensuring consistent quality for high-precision applications.
- Versatile Availability: The 4x8 foot size is the industry standard, compatible with most CNC machines, shears, and brakes. Custom cutting and slitting are available upon request.
Applications
- Marine: Boat hulls, decks, bulkheads, fuel tanks, railings, and marine hardware.
- Automotive: Truck body panels, trailer skins, fuel tanks, radiator fins, heat shields, and structural components.
- General Fabrication: Signage, enclosures, ductwork, storage tanks, and roofing.
Why Choose Hemaokang Steel?
Backed by our ISO9001:2015 certified quality management system, every sheet undergoes rigorous inspection including dimensional checks, surface defect detection, and mechanical property testing. Our team has years of export experience serving over 15 global markets, from North America to Southeast Asia, ensuring reliable logistics and timely delivery. With an annual export value exceeding US$50 million, we have the capacity to handle large-volume orders while maintaining competitive pricing. We also offer additional services like customized packaging, edge trimming, and protective film lamination to meet your specific requirements.
Contact us today for a quote or technical consultation. Our experienced sales engineers are ready to assist you with product selection, sample requests, and order processing. Trust Hemaokang Steel – your partner in quality aluminum solutions.
Frequently Asked Questions (FAQ)
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What is the thickness tolerance of your 3003 H14 sheets?
Our standard tolerance is ±0.002 inch for thicknesses up to 0.063 inch, and ±0.003 inch for 0.064–0.125 inch. Tighter tolerances are available on request. -
Can you cut the sheets to custom sizes?
Yes, we offer custom cutting (guillotine, laser, or plasma) to any dimensions within our capability. Minimum order quantities may apply for custom sizes. -
What surface finish options do you provide?
Standard is mill finish. We also offer bright finish, brushed, or embossed surfaces, as well as protective peelable film for scratch prevention during handling. -
How do you pack the sheets for export?
Sheets are packed with interleaving paper, wooden pallets, and steel strapping. For sea freight, we use VCI paper and waterproof wrapping to protect against moisture. -
What is the minimum order quantity (MOQ)?
For standard 4x8 sheets, MOQ is 1 ton (approx. 28 sheets for 0.063 inch thickness). Smaller quantities are possible for sample orders. -
What is the typical lead time?
For stock sizes, 7–15 days after order confirmation. For custom orders, 20–30 days depending on quantity and specifications. -
Is this product suitable for marine use?
Yes, 3003 aluminum is widely used in marine applications due to its excellent corrosion resistance against saltwater. However, for severe corrosive environments, 5052 or 5083 may be recommended – please consult our team. -
Do you provide test certificates or MTR?
Yes, we provide mill test reports (MTR) per ASTM B209 for each batch, and ISO9001 certification documents are available upon request.
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