A1050 Aluminum Sheet
Customer service is online. Enter the chat to get the latest quotation.
Spot stock
Customize
Factory direct sale
7 days delivery
A1050 Aluminum Sheet Description
A1050 aluminum sheet is a 1000-series, commercial-purity alloy with a minimum aluminium content of 99.50 %. In ASTM B209 the grade is written 1050; the same material is A1050 under JIS H4000, EN AW-1050A in Europe and 1050A under GB/T 3190. Because it carries almost no alloying addition, it is soft, extremely ductile and highly corrosion resistant, while giving among the highest electrical and thermal conductivity figures of any wrought aluminium product.
We quote the range we actually roll and slit to tolerance: 0.20–6.00 mm thick, 20–2600 mm wide, supplied as cut-to-length sheet or as coil for slitting, deep drawing and finishing. Widths above about 1500 mm are wide architectural and roofing stock, planned against the rolling schedule rather than taken as a default. Tell us the end-use and finish and we will quote the temper and width that fit.
Advantages of GNEE A1050 Aluminum Sheets
-
High Purity & Non-Toxic (Food Grade)
With a minimum aluminum content of 99.5%, A1050 aluminum sheet is highly resistant to chemical attack and is non-toxic. This makes it the industry standard for food containers, pharmaceutical packaging, and laboratory equipment.
-
Superior Electrical & Thermal Conductivity
Second only to copper in common industrial metals, A1050 pure aluminum offers excellent heat dissipation. It is widely used in electronic heat sinks, lighting reflectors, and electrical busbar components.
-
Outstanding Deep Drawing Quality
Our specialized annealing process ensures that A1050-O and H14 sheets possess high elongation and excellent grain structure. This allows for complex bending, spinning, and deep drawing without surface cracking or "orange peel" effects.
-
High Corrosion Resistance
The high purity of A1050 creates a dense, protective natural oxide layer, providing long-term durability in atmospheric and mild chemical environments without additional coatings.
Technical Specification of A1050 Aluminum Sheet
Our A1050 sheets are manufactured to meet international standards including ASTM B209, EN 485, and JIS H4000, ensuring consistent performance in high-precision manufacturing.
| Technical Feature | Details / Value |
| Aluminum Content | ≥99.5% (Pure Aluminum) |
| Available Tempers | A1050-O, H12, H14, H18, H24 |
| Thickness Range | 0.3mm – 6.0mm (Sheet) / 6mm – 200mm (Plate) |
| Width & Length | 1000mm to 2600mm / Custom Lengths up to 12000mm |
| Surface Treatment | Mill Finish, Mirror Polished, Anodized, Stucco Embossed |
| Standard Compliance | ISO 9001, SGS, TUV, ASTM B209, EN 485 |
| Elongation (%) | Up to 35% (O Temper) - Ideal for Deep Drawing |
Chemical composition of A1050 aluminum sheet
The composition follows ASTM B209 / EN 573-3 for 1050/1050A: a high-purity base where iron and silicon are the only elements present in any meaningful amount, and both are capped to protect conductivity and corrosion resistance. GB/T 3190 1050A uses the same limits (its titanium ceiling is 0.05 % rather than 0.03 %); the difference does not affect supply or the mechanical values quoted here, which are identical under GB/T 3880 and ASTM B209 for this four-digit grade.
| Element | Content (wt %) |
|---|---|
| Aluminium (Al) | ≥ 99.50 (balance) |
| Silicon (Si) | ≤ 0.25 |
| Iron (Fe) | ≤ 0.40 |
| Copper (Cu) | ≤ 0.05 |
| Manganese (Mn) | ≤ 0.05 |
| Magnesium (Mg) | ≤ 0.05 |
| Zinc (Zn) | ≤ 0.05 |
| Titanium (Ti) | ≤ 0.03 (1050A: ≤ 0.05) |
| Other elements (each) | ≤ 0.03 |
| Other elements (total) | ≤ 0.10 |
Limits per ASTM B209 for 1050. The ultra-low copper keeps corrosion resistance and conductivity high; iron is the principal residual and the main lever on strength.
Mechanical properties of A1050 aluminum sheet by temper
1050 is non-heat-treatable: its strength comes only from cold work (the H-tempers), and annealing returns it to the soft O condition. The table gives representative minimums and typical ranges for sheet; exact acceptance values depend on thickness and orientation and are confirmed on the mill certificate. ASTM B209 and GB/T 3880 carry the same figures for this grade.
| Temper | Tensile strength (MPa) | Yield strength (MPa) | Elongation (%) |
|---|---|---|---|
| O (annealed) | 60 – 100 | ≥ 20 | ≥ 35 |
| H12 (quarter hard) | 85 – 125 | 65 – 95 | 12 – 20 |
| H14 (half hard) | 105 – 145 | ≥ 75 | 6 – 12 |
| H16 (three-quarter hard) | 120 – 160 | 100 – 130 | 6 – 10 |
| H18 (full hard) | ≥ 135 | ≥ 120 | ≥ 2 |
| H24 (half hard, stabilized) | 105 – 145 | ≥ 75 | 6 – 10 |
Typical values for sheet; the O, H12, H14, H16, H18 and H24 columns follow ASTM B209 thickness-stepped minimums. H22, H26 and H112 are available on request. Certified figures come from the EN 10204 3.1 MTC.
Physical properties of A1050 aluminum sheet
These physical constants are essentially independent of temper - cold work changes strength and hardness, not the underlying material behaviour. They are what make 1050 the default choice for busbars, heat sinks and reflector work rather than for load-bearing parts.
| Property | Value |
|---|---|
| Density | 2.70 g/cm³ |
| Melting range | 646 – 657 °C |
| Thermal conductivity | 220 – 230 W/(m·K) |
| Electrical conductivity | ~ 59 – 61 % IACS (annealed) |
| Young's modulus | ~ 69 GPa |
| Coefficient of thermal expansion | ~ 23.6 µm/(m·K) |
Choosing a temper for A1050 aluminum sheet
Temper choice on 1050 is a straight strength-versus-formability trade. Start from the forming step, then take the hardest temper your process can still accept.
| If you need… | Pick | Why |
|---|---|---|
| Deep drawing, spinning, complex bends | O | Softest condition; highest elongation, best draw without cracking or orange-peel. |
| Light forming plus scratch resistance | H14 or H24 | Half-hard; holds shape and resists handling marks, still bends to a moderate radius. |
| Rigid, flat panels or printing plates | H18 | Full-hard, highest commercial strength; essentially not bent after supply. |
| Lightly strain-hardened, easy form | H12 | Quarter-hard; forms almost as freely as O with a small strength gain. |
H24 is H14 strain-hardened then partially annealed, giving more stable properties and flatter stock for coating and precision parts.
Dimensions and tolerances of A1050 aluminum sheet
Thickness, width and flatness follow EN 485-2. 1050 is a Group I alloy (pure aluminium), so it sits in the tightest tolerance band of the standard - tighter than the 3xxx and 5xxx families. Representative thickness tolerance for cold-rolled sheet is about ± 0.03 mm at 0.5 mm, ± 0.05 mm at 1.0 mm and ± 0.11 mm at 3.0 mm; confirm the exact class against your thickness at quotation. The 10 mm at each edge is excluded from thickness measurement.
| Parameter | GNEE supply range |
|---|---|
| Thickness | 0.20 – 6.00 mm (sheet); 6.00 – 200 mm (plate, separate line) |
| Width | 20 – 2600 mm |
| Length | Coil, or cut-to-length sheet to order |
| Coil ID / OD | 300 / 505 mm ID; OD and coil weight quoted per order |
| Edges | Slit edge or mill edge |
Tolerances per EN 485-2 Group I. Width above 1500 mm is wide architectural stock and is planned against the rolling schedule. Narrower widths are slit from wide coil.
1050 vs other 1xxx aluminum sheet alloys
Within the 1000 series the grades differ mainly by purity, which trades off against strength and formability. All are non-heat-treatable and share the same fabrication behaviour; the choice is usually driven by conductivity and price.
| Alloy | Min Al (%) | Typical O temper tensile (MPa) | Conductivity (% IACS) | Where it fits |
|---|---|---|---|---|
| 1050 / A1050 | 99.50 | 60 – 100 | ~ 61 | Reflectors, busbars, deep-drawn and chemical parts; widely specified in Asia and Europe. |
| 1060 | 99.60 | 60 – 100 | ~ 62 | Marginally higher conductivity and formability; used where the extra purity is specified. |
| 1100 | 99.00 | 75 – 105 | ~ 59 | Slightly stronger general-purpose pure aluminium for spinnings and nameplates. |
| 1200 | 99.00 | 60 – 100 | ~ 60 | European general-purpose pure aluminium, equivalent role to 1100. |
Conductivity and tensile figures are indicative; certified values come from the applicable standard or the mill certificate.
Applications of A1050 Aluminum
- Electrical: busbars and conductor strip, heat-sink substrates, capacitor foil, connectors and transformer windings where high conductivity matters.
- Heat exchange: fin stock and heat-exchanger plates that exploit its thermal conductivity.
- Chemical and pharmaceutical: storage tanks, drums and linings facing mild corrosives; food- and lab-grade containers.
- Lighting and reflectors: mirror-polished and bright-finished reflectors and decorative light housings.
- Signage and architecture: nameplates, signboards, building facade flashings and roofing.
- Deep-drawn goods: cookware bodies, lids, caps and stampings that need extreme ductility.
- Printing: substrate for PS and CTP lithographic plates after graining.
Request Your A1050 Aluminum Quote Today
Our technical team is available 24/7 to provide material recommendations and real-time pricing. Get a free sample to test GNEE's quality for your project.
Forming, welding and finishing A1050 aluminum sheet
Forming and bending
1050 is among the easiest aluminium alloys to form. O-temper sheet deep draws, spins and stretches without cracking; H14 and H24 bend to a moderate radius (typically about 1t for thin sheet, widening with thickness and hardness); H18 is essentially not bent after supply. Pick the bend radius from the temper and thickness of the blank, and we can advise a starting radius for your press.
Welding
1050 welds readily by TIG, MIG, gas and resistance (spot) methods. Use a 1050-family pure-aluminium filler to keep the weld colour and corrosion behaviour matched to the parent; the weld zone relaxes toward O-temper strength locally, so design the joint for the reduced section. No special pre- or post-heat is needed for normal sheet thicknesses.
Surface finishing
1050 anodizes to a bright, uniform clear or dyed film - the high purity is why it is preferred over 3xxx/5xxx for decorative anodizing. It also polishes to a high reflectivity, and takes paint, brushing and embossing well. The anodic film is relatively soft, so it is used mainly for decorative and protective rather than wear-facing service.
Machining
Pure aluminium is gummy and tends to build up on the tool, so 1050 machines poorly compared with the harder alloys. Use sharp, high-rake tools at high speed with coolant; diamond or PCD tooling gives the cleanest, most accurate finish on precision parts.
Machining and fabrication services for A1050 aluminum sheet
Because 1050 is soft and easily marked, most customers take it part-finished rather than as raw blank. GNEE runs an in-house line so you can order material closer to the finished component. The services below are offered on 1050 sheet and coil; send the drawing, quantities and tolerances and we will quote the combination that fits.
Cutting
Slitting and edge trimming - coil slit to your width (down to about 20 mm) with slit or mill edge; soft 1050 is film- or paper-interleaved during slitting to prevent edge rub marks.
Cut-to-length shearing - sheet sheared to a set length on a levelling line, square-edged and burr-controlled.
Laser and waterjet cutting - for profiles, notches and low-volume shapes; waterjet avoids the heat-affected zone that laser leaves on aluminium.
CNC machining
Multi-axis CNC routing, milling and drilling for holes, countersinks and pockets in 1050 sheet. We run sharp tooling with coolant to manage the alloy's tendency to pick up on the cutter, so features stay clean on this soft material.
Perforating and punching
Mechanical punching and perforated patterns (round, slotted, decorative) for ceilings, facades, filters and acoustic panels. Tooling is quoted per pattern; standard round-hole pitch sets are the lowest-cost option.
Chamfering and deburring
Edge chamfering and deburring on cut parts so the soft edges are safe to handle and ready for welding, bending or anodizing. Supplied as a standard pass after cutting where requested.
Bending and brake-press forming
Press-brake bending to a specified radius and angle. O and H14 take tight bends; H18 is not bent. We advise a starting bend radius from the temper and thickness so the part forms without cracking.
Welding
TIG and MIG welding of 1050 assemblies with 1050-family pure-aluminium filler, typically for welded tanks, ducts and frames. Procedure and filler are chosen for the joint and the intended finish.
Surface treatments
Anodizing - 1050 anodizes to a uniform bright or dyed film; the clean choice for reflectors and decorative trim.
Mirror polishing and brushing - high-reflectivity or satin finishes for lighting and signage.
Coating (PE / PVDF / pre-paint) - batch or line coating in standard RAL colours for architectural and cladding use.
Protective film lamination - PVC or PE film to protect the soft surface through forming and transit.
Processing tolerances, minimum feature sizes and achievable radii depend on thickness, temper and quantity - confirm against your drawing at quotation.
Ordering A1050 aluminum sheet
| Item | GNEE terms |
|---|---|
| MOQ | Flexible - sample sheets, trial coils and full production runs are quoted on the same basis. |
| Lead time | 15 – 30 days from order confirmation, checked against the actual rolling schedule. |
| Packing | Neutral-paper interleaving or PE/laser protective film (for mirror finishes), moisture-barrier kraft and plastic wrap, ISPM-15 fumigated wooden pallets with steel strapping and edge protection. |
| Certification | EN 10204 3.1 mill certificate with every shipment, traceable to the heat. 3.2 and third-party inspection arranged where required. |
| Payment / Incoterms | To be confirmed per order (T/T, LC; FOB, CIF, CFR, EXW available). |
1050 is outside the controlled-alloy export list, so it ships without the end-use and end-user screening applied to high-strength grades such as 7075 or 7050.
About GNEE
Exporting since 2008. GNEE ships aluminium flat-rolled and extruded products to more than 100 countries.
We quote the range we can hold. The 0.20–6.00 mm by 20–2600 mm band on this page is our sellable range, not a mill's full theoretical capability.
Small quantities are normal. Trial coils, sample sheets and full production runs are quoted on the same terms. Order what the job needs.
Delivery you can plan around. 15–30 days from confirmation, checked against the actual rolling schedule before you commit, not after.
Paperwork that clears inspection. EN 10204 3.1 mill certificate with every shipment, traceable to the heat. 3.2 and third-party inspection arranged where the job requires it.
Export Packaging & Global Shipping
Because A1050 aluminum is a soft pure metal, GNEE uses an enhanced protection system to ensure it arrives in pristine condition:
- Surface Protection: Choice of neutral paper interleaving or Double-sided PE/Laser film (for mirror finishes).
- Moisture Barrier: Wrapped in high-density waterproof kraft paper and multi-layer plastic film.
- Reinforced Pallets: ISPM-15 certified fumigated wooden pallets with reinforced steel strapping and edge protection.
- Sea-Safe Logistics: Every container is equipped with industrial-grade desiccants to prevent oxidation during long sea voyages.
FAQ
What is the difference between 1050 and 1060 aluminum sheet?
Both are commercial-purity, non-heat-treatable grades. 1050 has a minimum aluminium content of 99.50 %; 1060 is 99.60 %. The extra purity gives 1060 marginally higher conductivity and slightly better formability, while 1050 is the more widely specified grade in Asian and European markets and is usually the more cost-effective choice for general industrial, lighting and forming work. In most moderate-strength applications they are interchangeable.
Is A1050 aluminum sheet heat-treatable?
No. Like all 1xxx alloys, 1050 cannot be strengthened by heat treatment. Its strength comes only from cold work - the H-tempers (H12, H14, H16, H18, H24) - and annealing softens it back toward the O condition. There is no T6 or similar temper in the normal supply.
Can A1050 aluminum sheet be welded?
Yes, very readily. It welds well by TIG, MIG, gas and resistance methods. Use a 1050-family pure-aluminium filler so the weld matches the parent in colour and corrosion behaviour. Remember the weld zone relaxes toward O-temper strength locally, so size the joint for the reduced section rather than the parent strength.
Which temper should I choose for bending or folding?
For 90-degree or 180-degree folds and complex forming, choose O (softest, bends without cracking) or, where you also need some scratch resistance, H14. H16 can be folded to a wider radius with care. H18 is the full-hard condition and should not be bent after supply - it is for rigid, flat parts such as printing plates and nameplates.
Does A1050 anodize well?
Yes. Its high purity is exactly why 1050 is preferred for decorative anodizing: it produces a bright, uniform clear or dyed film, unlike the 3xxx and 5xxx families where alloying elements can give uneven colour. The anodic film is relatively soft, so it is used for decorative and protective service rather than heavy wear.
What is the electrical conductivity of 1050 aluminum sheet?
In the annealed condition 1050 conducts about 59–61 % IACS - close to dedicated electrical grades such as 1350 and well above the 3xxx and 5xxx families. That, plus its low cost and easy formability, is why it is used for busbars, conductor strip and transformer windings rather than for structural parts.
What is the difference between H14 and H24 on 1050?
Both reach about the same strength band (105–145 MPa tensile, ≥ 75 MPa yield). H14 is strain-hardened only (half hard). H24 is strain-hardened and then partially annealed, which stabilises the properties, relieves internal stress and gives flatter, more dimensionally stable stock - useful where the sheet will be coated, anodized or held to tight flatness.
Can GNEE supply custom-cut sizes for A1050 sheet?
Yes. We offer precision shearing, slitting, laser and waterjet cutting, and the in-house services listed above (CNC, punching, deburring, bending, welding, finishing). Send the drawing, tolerances and quantity and we will quote against the rolling schedule, with thickness, width and temper confirmed to your spec.
Hot Tags: a1050 aluminum sheet, China a1050 aluminum sheet manufacturers, 1 series Aluminum Plate, 1050 Aluminum Plate, 1060 Aluminum Plate, Aluminum Welding Rods, Industrial applications, Pure aluminum alloy
You Might Also Like
Send Inquiry