1070 aluminum sheet belongs to the 1xxx series aluminum alloy, also known as the industrial pure aluminum series. According to international standards and China’s GB/T 3880 standard, its aluminum content is no less than 99.7%. This exceptionally high purity is the basis for its outstanding prop
1070 aluminum sheet belongs to the 1xxx series aluminum alloy, also known as the industrial pure aluminum series. According to international standards and China’s GB/T 3880 standard, its aluminum content is no less than 99.7%. This exceptionally high purity is the basis for its outstanding properties.
1070 aluminum sheet is manufactured through multiple processes, including melting, casting, hot rolling, and cold rolling. It is available in various tempers, such as O, H14, and H18, as well as a wide range of sheet and coil specifications.
| Type / Temper | Description | Performance Characteristics |
| O Temper | Annealed condition; the softest temper | Highest ductility and excellent formability |
| H12 / H14 / H16 / H18 / H19, etc. | Different levels of strain hardening | Strength increases progressively while ductility decreases |
| H22 / H24 / H26 / H28, etc. | Strain hardened and partially annealed | Balanced strength and plasticity |
Lightweight: With a density of approximately 2.7 g/cm³-only 35% that of iron, it facilitates product lightweighting, making it particularly suitable for the automotive and aerospace industries.
Excellent Electrical and Thermal Conductivity: It boasts an electrical conductivity of up to 62% IACS (International Annealed Copper Standard) and a thermal conductivity of approximately 237 W/(m·K). Its performance is second only to silver, copper, and gold, making it an ideal material for manufacturing wires and cables, heat sinks, LED bases, capacitors, and heat exchangers.
Superior Corrosion Resistance: Aluminum naturally forms a dense, stable protective oxide layer (Al₂O₃) on its surface, providing excellent resistance to corrosion in atmospheric, aqueous, and neutral environments. It is suitable for chemical processing equipment, marine components, and food packaging.
High Plasticity and Formability: 1070 aluminum sheet exhibits high ductility (with an elongation rate of 30%-40%) and can be easily processed into complex shapes via stamping, deep drawing, spinning, and bending. It is a preferred material for deep-drawn parts, aluminum foil, packaging containers, and decorative trim.
Good Weldability and Machinability: It supports various welding methods, such as gas welding, argon arc welding (TIG), and spot welding—with excellent results. While its machinability is moderate, mechanical processes like milling and turning can still be performed effectively by adjusting parameters (e.g., using cutting fluids or optimizing tool angles).
Non-magnetic and Safe: The material is non-magnetic and does not produce sparks upon impact, making it suitable for applications sensitive to electromagnetic interference or requiring explosion-proof properties.
Excellent Conductivity: With an electrical conductivity of approximately 61% IACS and thermal conductivity of about 230 W/(m·K)-ranking just behind copper, silver, and gold—it is ideal for products requiring high conductivity, such as busbars, cables, heat sinks, conductive strips, and electrodes.
Eco-friendly and Recyclable: Aluminum is a green material that can be recycled indefinitely. 1070 aluminum sheet holds high recycling value, aligning with the principles of sustainable development.
| Temper | O, H12, H14, H16, H18, H19, H22, H24 |
| Thickness | 0.2–50 mm |
| Width | 100–2600 mm |
| Length | 500–10,000 mm |
| Standards | ASTM B209 / ASME SB209 |
| Surface finish | Mill finish, polished, brushed, hairline, sandblasted, embossed, etched, etc. |
| Surface treatment | Natural mill finish or customized surface treatment |
| Coating options | PVC coating, color coating, polyester coating, PVDF coating, polyurethane coating, and epoxy coating |
| Product type | Hot-rolled (HR) or cold-rolled (CR) sheet |
| MOQ | 1–3 tons |
Mechanical Properties
Typical Properties of 1070-H14 Aluminum Sheet
| Tensile strength | 10,000–14,000 psi (70–95 MPa) |
| Yield strength | 4,000 psi (28 MPa) |
| Elongation | 25%–35% |
| Hardness | 25 HB |
| Density | 2.71 g/cm³ |
Mechanical properties
| Properties | Conditions | ||
| T (°C) | Treatment | ||
| Density (×1000 kg/m3) | 7.7-8.03 | 25 | |
| Poisson's Ratio | 0.27-0.30 | 25 | |
| Elastic Modulus (GPa) | 190-210 | 25 | |
| Tensile Strength (Mpa) | 640 | 25 | cold drawn, spheroidized annealed more |
| Yield Strength (Mpa) | 495 | ||
| Elongation (%) | 10 | ||
| Reduction in Area (%) | 45 | ||
| Hardness (HB) | 192 | 25 | cold drawn, spheroidized annealed more |
1070 Aluminum Chemical Composition (%)
| Element | Si | Fe | Cu | Mn | Mg | Zn | Ti | Other Elements | Al |
| Content | ≤0.20 | ≤0.25 | ≤0.04 | ≤0.03 | ≤0.03 | ≤0.04 | ≤0.03 | ≤0.03 | ≥99.70 |
For Electrical Conductivity and Heat Transfer
Choose 1070-O or 1070-H14 aluminum sheet. A mill finish or naturally anodized surface is recommended to achieve better electrical contact and heat dissipation performance.
For High-Reflectivity Applications
Choose mirror-polished 1070 aluminum sheet or 1085 aluminum sheet for lighting fixtures, reflectors, decorative panels, and similar applications.
For Deep Drawing and Bending
Choose soft O temper or lower-hardness tempers such as H12 or H14. A bending radius of at least 1–2 times the sheet thickness is recommended.
For Outdoor Corrosion Resistance
1070 aluminum has natural corrosion resistance. Anodizing or a clear protective coating can further improve durability in outdoor environments.
Melting and Casting
Steel and alloying metals are loaded into an electric arc furnace. Once in the furnace, the metal is heated to a specific temperature above its melting point, usually in excess of 2800°F.
Forming
Most cast steel is formed by hot rolling—the slab, bloom, or billet is heated and passed through large rollers, stretching out the steel into a longer, thinner form.
Heat Treatment
Heat treatment strengthens rolled steel by recrystallizing the deformed microstructure. Most steel is heat treated by annealing.
Cutting or Machining
Steel is cut to a specified shape and size. The steel can be sheared with circular knives, sawed with high-speed blades, or blanked with punches.
Finishing
Steels can be made with a wide variety of surface finishes. The chosen surface finish is not purely aesthetic. The type of finish is determined by the intended application.
Electrical and Power Industry: Transformer windings, capacitor housings, conductive busbars in high- and low-voltage switchgear, cable shielding strips, and other electrical components that require high conductivity.
Packaging Industry: Aluminum foil packaging for food, pharmaceuticals, and tobacco products, often used as part of composite packaging structures. It is also used for bottle caps, easy-open lids, and similar products due to its non-toxicity, corrosion resistance, and excellent barrier properties.
Architectural Decoration: Indoor and outdoor decorative panels, suspended ceilings, wall cladding, signboards, and nameplates. Its weather resistance, easy fabrication, and attractive surface finishes make it suitable for decorative applications.
Heat Exchange Applications: Air-conditioning fins, refrigeration evaporators, automotive radiator fins, and other heat-transfer components that rely on the excellent thermal conductivity of aluminum.
Daily Necessities and Crafts: Kitchenware, gift items, signs, nameplates, and other products that benefit from its easy formability and decorative appearance.
Other Industrial Applications: Chemical storage tank linings, reflective layers for insulation materials, reflective backing sheets for traffic signs, lightweight conveyor belts, and more.
1070 Aluminum Alloy Sheet | 1070 Aluminum Plate | A91070 Aluminum Shee |
1070 H14 Aluminum Sheet | 1070 H24 Aluminum Shee | ASME SB209 Aluminum 1070 Plain Sheet |
1070 Hot-Rolled Aluminum Sheet | 1070 HR Aluminum Sheet | 1070 Industrial Aluminum Sheet |
1070 H22 Cold-Rolled Aluminum Shee | 1070 Aluminum Cold-Forming Sheet |
| Grade | 1050 Aluminum Sheet | 1060 Aluminum Sheet | 1070 Aluminum Sheet |
| Aluminum Content | ≥99.5% | ≥99.6% | ≥99.7% |
| Electrical Conductivity | Approx. 58% IACS | Approx. 59% IACS | Approx. 61% IACS, highest |
| Strength | Low | Low | Low |
| Corrosion Resistance | Good | Good | Good |
| Formability | Excellent; easy to bend and weld | Excellent; slightly better mechanical balance | Excellent; very high ductility |
| Main Applications | Chemical equipment, food industry, decorative parts | Automotive radiators, heat exchangers, battery housings | Electrical busbars, capacitors, high-conductivity components |
| Price Level | Lowest | Moderate | Slightly higher |
Moisture-proof paper and PE protective film
Wooden pallets or wooden cases
Suitable for sea freight, land transportation, and container shipment
Small-batch samples and long-term bulk supply are available.
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