3003 aluminum sheet is a non-heat-treatable Al-Mn (3000 series) alloy widely used for roofing, siding, cooking utensils, chemical equipment, fuel tanks, and general sheet metal fabrication. It offers excellent corrosion resistance, good formability, and approximately 20% higher strength than 1100 aluminum. Linsy supplies 3003 aluminum sheet and coil in tempers O, H14, H22, H12, H16, and H18, with custom thickness, cut-to-size service, surface finishing options, and MTC reports included with every order.
Moduli disponibili: sheet / coil
Temperamenti comuni: O / H14 / H22 / H12 / H16 / H18
Supporto per l'elaborazione: cut-to-size / CNC machining / laser cutting / TIG & MIG welding / anodizing / polishing / powder coating
Documenti di qualità: Rapporto MTC allegato a ogni ordine, test SGS su richiesta
3003 aluminum sheet is one of the most widely used Al-Mn (aluminum-manganese) wrought products in the aluminum industry. As a non-heat-treatable alloy, 3003 derives its mechanical properties from cold working — not from solution heat treatment like 6061 or 7075. The strength of a 3003 sheet is controlled by the degree of cold reduction during rolling, expressed by the H temper designation: H12 (quarter hard), H14 (half hard), H16 (three-quarter hard), and H18 (full hard). Annealing returns the material to the fully soft O temper.
With 1.0–1.5% manganese as its primary alloying element, 3003 sheet offers approximately 20% higher strength than 1100 (commercially pure) aluminum sheet while retaining excellent corrosion resistance, formability, and weldability. It is the most commonly stocked general-purpose aluminum sheet alloy and is approved under major international standards including ASTM B209, EN 485, ISO 6361, and EN 573-3.
3003 sheet is supplied in both flat sheet and coil forms. Coil stock is suitable for continuous roll forming, stamping, and slitting operations. Common thicknesses range from 0.3 mm to 6.0 mm, with standard widths up to 2,600 mm. For material thicker than 6.0 mm, see our 3003 aluminum plate offering or the full Lega di alluminio 3003 product page.
Linsy supplies 3003 aluminum sheet and coil in the tempers and size ranges listed below. Custom thickness, width, and length can be specified for project-based orders. Both mill finish and surface-treated options are available.
| Forma | Temperamento | Spessore (mm) | Larghezza (mm) | Length / Coil Weight |
|---|---|---|---|---|
| 3003 Sheet | O, H12, H14, H16, H18, H22 | 0.3 – 6.0 | 500 – 2600 | 500 – 16000 |
| 3003 Coil | O, H12, H14, H16, H18, H22 | 0.3 – 3.0 | 500 – 2600 | Min 500 kg per coil |
Customization: Length, width, and thickness can be tailored to your project requirements. Cut-to-size, slit coil, and edge trimming are available as value-added services.
The following chemical composition limits apply to 3003 aluminum sheet and coil per ASTM B209 and EN 573-3. All values are weight percent (%).
| Elemento | Min % | Max % |
|---|---|---|
| Silicio (Si) | — | 0.6 |
| Ferro (Fe) | — | 0.7 |
| Rame (Cu) | 0.05 | 0.20 |
| Manganese (Mn) | 1.0 | 1.5 |
| Magnesio (Mg) | — | 0.05 |
| Cromo (Cr) | — | 0.05 |
| Zinco (Zn) | — | 0.10 |
| Titanio (Ti) | — | 0.05 |
| Others Each | — | 0.05 |
| Others Total | — | 0.15 |
| Alluminio (Al) | — | Equilibrio |
The mechanical properties of 3003 aluminum sheet vary significantly with temper. Cold working (H1x tempers) increases tensile and yield strength while reducing elongation. The values below are typical for sheet per ASTM B209. Use them to select the right temper for your forming and strength requirements.
The fully soft temper, offering maximum ductility and formability. Ideal for deep drawing, spinning, and complex forming operations.
| Proprietà | Valore tipico |
|---|---|
| Resistenza alla trazione (MPa) | 95 – 130 |
| Resistenza allo snervamento (MPa) | ≥ 35 |
| Allungamento (%) | ≥ 25 |
| Durezza (Brinell) | ~28 |
The most commonly stocked temper for general-purpose 3003 sheet. Offers the best balance of strength and formability for roofing, siding, cookware, and sheet metal fabrication.
| Proprietà | Valore tipico |
|---|---|
| Resistenza alla trazione (MPa) | 140 – 180 |
| Resistenza allo snervamento (MPa) | ≥ 115 |
| Allungamento (%) | ≥ 5 |
| Durezza (Brinell) | ~40 |
Maximum strength for 3003 sheet. Suitable for flat panels, non-formed structural parts, and applications where strength is prioritized over formability.
| Proprietà | Valore tipico |
|---|---|
| Resistenza alla trazione (MPa) | ≥ 185 |
| Resistenza allo snervamento (MPa) | ≥ 165 |
| Allungamento (%) | ≥ 3 |
| Durezza (Brinell) | ~55 |
Offers a controlled intermediate strength with better formability than H14 for applications that need moderate bending or drawing after forming.
| Proprietà | Valore tipico |
|---|---|
| Resistenza alla trazione (MPa) | 130 – 170 |
| Resistenza allo snervamento (MPa) | ≥ 105 |
| Allungamento (%) | ≥ 8 |
| Durezza (Brinell) | ~35 |
The temper you choose determines how your 3003 sheet performs in forming, strength, and surface quality. The guide below covers the most commonly ordered sheet tempers. For full alloy-level temper details (including H12, H16, and H112 for tube, bar, and plate), see our Lega di alluminio 3003 commercial hub page.
| Temperamento | Descrizione | Key Benefit for Sheet | Typical Sheet Applications |
|---|---|---|---|
| O | Annealed — fully soft | Maximum formability and deep drawability | Deep-drawn cookware, spun parts, complex stampings, chemical tank heads |
| H14 | Strain-hardened, 1/2 hard | Best balance of strength and formability (most stocked temper) | Roofing panels, siding, cooking utensils, fuel tanks, general sheet metal |
| H22 | Strain-hardened then partially annealed | Better formability than H14 at comparable strength | Moderate forming, bending, shallow drawing, ductwork |
| H18 | Strain-hardened, full hard | Maximum strength — minimal formability | Flat panels, non-formed structural parts, trim, signage, backing sheets |
3003 sheet offers excellent resistance to atmospheric corrosion, including in marine, industrial, and rural environments. The manganese content suppresses grain-boundary corrosion, and 3003 performs well in contact with food products, mild chemicals, fresh water, and petroleum-based fluids. It is commonly used without protective coatings in roofing, siding, food processing equipment, and chemical storage applications. For saltwater immersion or aggressive chemical exposure, consider 5052 sheet instead.
3003 sheet shows outstanding cold formability — it can be deep drawn, spun, stamped, roll formed, embossed, and bent to tight radii without cracking. In the O temper, 3003 is one of the most formable aluminum alloys available, making it the first choice for cookware (pots, pans, baking sheets) and complex sheet metal enclosures. Even in the H14 temper, 3003 retains sufficient ductility for most general sheet metal forming operations. The H18 temper should be reserved for flat or minimally formed parts.
3003 sheet is rated as highly weldable using TIG (GTAW), MIG (GMAW), oxyacetylene, and resistance welding. Filler metal 4043 or 1100 is typically recommended for fusion welding. Note that welding will anneal the heat-affected zone (HAZ), reducing local strength to near-O temper levels in cold-worked tempers (H14, H18, H22). For structural applications where post-weld strength matters, this softening should be considered in the design.
| Industria | Typical Sheet Applications | Why 3003 Sheet Is Selected |
|---|---|---|
| Building & Construction | Roofing sheets, siding panels, gutters, downspouts, flashing, soffits, architectural trim | Atmospheric corrosion resistance, formability, lightweight, cost-effective vs coated steel |
| Food & Kitchen | Cooking pots and pans, baking sheets, food processing trays, refrigerator liners, kitchen backsplashes | Food-safe, excellent deep drawability, good thermal conductivity, non-toxic, easy to clean |
| Chemical & Industrial | Storage tank shells, chemical processing equipment, pressure vessel bodies, drum and barrel stock, ductwork | Resistance to mild chemicals and petroleum products, weldability, non-sparking |
| HVAC & Thermal | Heat exchanger fins, air conditioner condenser fins, radiator tubes, evaporator panels | Thermal conductivity, ability to be rolled to very thin gauges (0.3 mm and below), formability |
| Trasporto | Fuel tanks, oil pans, air intake ducts, trailer siding, non-structural body panels | Corrosion resistance, formability, weldability, lower cost vs 5000-series |
| Fabbricazione generale | Sheet metal enclosures, electrical cabinets, signage stock, nameplates, furniture sheet, decorative panels | Easy fabrication, paint acceptance, moderate strength at low cost |
3003 aluminum sheet supports a wide range of processing and surface treatment options at Linsy’s Shenzhen factory:
Every 3003 aluminum sheet and coil order from Linsy includes quality documentation to support your procurement and compliance requirements:
Linsy Aluminum is a Shenzhen-based aluminum factory with more than 20 years of industry experience. We supply 3003 aluminum sheet and coil across the full range of tempers — O, H14, H22, H12, H16, and H18 — with standard stock and custom production options to match your order requirements.
Our inventory covers 3003 sheet in common thicknesses and tempers for fast fulfillment, with low-MOQ custom production available for non-stock sizes, special tempers, or project-based mixed-spec orders. Custom lead times typically range from 10 to 60 days depending on dimensions, temper, processing requirements, and order complexity.
With in-house processing capabilities including cut-to-size, laser cutting, CNC machining, TIG and MIG welding, anodizing, polishing, and powder coating, you can source both 3003 sheet material and downstream processing from a single supplier. Every order ships with a factory-issued MTC, and SGS third-party test reports are available on request.
We serve buyers worldwide from our Shenzhen base, offering factory-direct pricing and traceable quality from raw material to finished product. For 3003 sheet pricing, availability, or a custom quotation, contact our sales team with your specification.
A: 3003 aluminum sheet is most commonly used for roofing and siding panels, cooking utensils and food processing equipment, chemical storage tanks, heat exchanger fins, fuel tanks, and general sheet metal fabrication. Its combination of corrosion resistance, formability, and moderate strength makes it ideal for applications requiring deep drawing, spinning, roll forming, or moderate structural performance without heat treatment.
A: H14 (half hard) is the most commonly stocked and ordered temper for 3003 aluminum sheet. It provides the best balance of strength and formability, making it suitable for roofing, siding, cookware, tanks, and most general sheet metal fabrication. O temper is preferred when maximum deep drawability is needed, and H18 is specified for flat panels requiring the highest strength.
A: 3003-H14 is strain-hardened to half-hard condition through cold rolling only (H1x series). 3003-H22 is strain-hardened beyond the desired final strength, then partially annealed back to an intermediate level (H2x series). The result is nearly equivalent strength but with slightly better formability in H22 compared to H14. Both are commonly used for general sheet metal work.
A: Yes. 3003 sheet is rated as highly weldable using TIG (GTAW), MIG (GMAW), oxyacetylene, and resistance welding. Recommended filler metals are 4043 or 1100. However, welding will anneal the heat-affected zone, reducing local strength to near-O temper levels in H14, H18, and H22 tempers. This softening should be considered in the structural design of welded assemblies.
A: Yes. 3003 aluminum sheet has excellent atmospheric corrosion resistance, including in marine, industrial, and rural environments. It is widely used without protective coatings for roofing, siding, gutters, and downspouts. In coastal or heavy industrial environments, 3003 sheet may develop a natural gray patina over time but will not rust or structurally degrade like steel.
A: Yes, but with limitations. 3003 sheet can be anodized — however, the finish will have a gray or yellowish tint rather than a bright, clear appearance. This is caused by the alloy’s manganese and iron content. Anodized 3003 sheet is acceptable for protective or decorative applications where a bright, color-matched finish is not required. For bright anodizing, consider 1100 or 6063 sheet instead.
A: Linsy supplies 3003 sheet in thicknesses from 0.3 mm to 6.0 mm, with standard widths up to 2,600 mm. Coil stock is available up to 3.0 mm. For material thicker than 6.0 mm, we offer 3003 aluminum plate — see our Lega di alluminio 3003 page for plate specifications. Custom thicknesses between standard gauge values can be produced for project-based orders.
A: Yes. Linsy issues a factory Mill Test Certificate (MTC) with every 3003 aluminum sheet and coil order, documenting the chemical composition, mechanical properties, and dimensional inspection results for the specific material shipped. SGS third-party test reports are also available on request at additional cost.
A: 5052 sheet (Al-Mg alloy) offers approximately 40% higher strength and superior saltwater corrosion resistance compared to 3003 sheet. 3003 sheet is lower in cost, more formable, and widely available. Choose 3003 sheet for cost-sensitive general sheet metal, cookware, roofing, and chemical equipment. Choose 5052 sheet for marine environments, higher structural requirements, or applications needing better anodized appearance.
A: Linsy supports low MOQ for standard stock 3003 sheet items and custom production orders. MOQ varies by thickness, temper, and sheet size. Contact our sales team with your specification for a specific MOQ quote.
A: Standard stock 3003 sheet items typically ship within 3–7 days. Custom production orders (non-stock sizes, special tempers, or processing requirements) generally require 10–60 days depending on order specifications and complexity.
A: Yes, we provide small sample pieces of 3003 sheet for quality evaluation and trial forming. Sample availability depends on stock and specification. Contact us with your requirements.
A: We accept T/T (bank transfer) and L/C (letter of credit). Standard payment terms are 30% advance with order and 70% before shipment. Custom terms can be discussed for long-term partnerships.
A: Yes. We ship worldwide including Europe, South America, Africa, the Middle East, and Asia. Freight options include sea freight, air freight, and courier services depending on order size and urgency.
A: Yes. Cut-to-size is available as a standard value-added service. Simply provide your finished dimensions when requesting a quote, and we will supply 3003 sheet cut to your exact size requirements.
Vantaggi Linsy
Linsy Aluminum è un fornitore leader di prodotti per la lavorazione dell'alluminio, che serve diversi settori, tra cui quello aerospaziale, dell'ingegneria generale, automobilistico, marittimo, navale e altre applicazioni industriali specializzate.
Ci impegniamo a mantenere i più alti standard di qualità e responsabilità ambientale, come dimostrano le nostre certificazioni: ISO 9001:2008, ISO 14001:2004 e SGS.
