Hot Rolled / Cold Rolled 1070 Aluminum Circle

Title

The 1070 aluminum circle is a circular blank made primarily from 1070 pure aluminum, precision-processed through hot rolling or cold rolling. This series of products features high aluminum content (≥99.7%), excellent ductility, and outstanding electrical and thermal conductivity, making it an essential raw material in various industrial and consumer products.

Manufacturing Process of 1070 Aluminum Circles

Depending on the production process, 1070 aluminum circles are divided into hot rolled and cold rolled types.

Hot Rolled 1070 Aluminum Circle

Hot rolled 1070 aluminum circles are produced through a high-temperature rolling process, which improves the metal grain structure and densifies the internal organization of the material. This results in better toughness, higher impact resistance, and excellent ductility, making it ideal for subsequent deep drawing, spinning, welding, and other processing.
Common applications include cookware, lighting fixtures, electrical housings, signage, and packaging containers.

Cold Rolled 1070 Aluminum Circle

Cold rolled 1070 aluminum circles are manufactured by further processing hot rolled sheets at room temperature through multiple cold rolling passes. This process significantly improves dimensional accuracy and surface finish, producing circles with smooth surfaces, tighter thickness tolerance, and refined surface quality. Cold rolled aluminum circles are especially suitable for applications with high aesthetic requirements or surface treatments.

Specifications of 1070 Aluminum Circle CC / DC

Diameter	80 mm – 1200 mm
Thickness	0.5 mm – 6.0 mm
Temper	O, H12, H14, H18, H24, H32, etc.
Surface Treatment	Bright, matte, anodized, coated, mirror finish
Processing Methods	Hot rolling, cold rolling, stamping, cutting, leveling
Tolerance Control	±0.02 mm, edges smooth without burrs
Applications	Cookware, lampshades, traffic signs, etc.
Packaging	Moisture-proof paper + wooden pallet / iron frame, supports export standards
Sample	Available
MOQ	1–3 tons

1070 Aluminum Circle CC / DC Temper (for reference)

Temper	Definition
O	Annealed
H12	Strain Hardened, 1/4 Hard
H14	Strain Hardened, 1/2 Hard
H16	Strain Hardened, 3/4 Hard
H18	Strain Hardened, Full Hard
H22	Strain Hardened and Partially Annealed, 1/4 Hard
H24	Strain Hardened and Partially Annealed, 1/2 Hard
H26	Strain Hardened and Partially Annealed, 3/4 Hard
H28	Strain Hardened and Partially Annealed, Full Hard

Features of 1070 Aluminum Circles

High purity
Excellent electrical and thermal conductivity
Excellent corrosion resistance
Excellent plasticity and easy formability
Relatively low strength
Environmentally friendly and recyclable
Bright surface, free of oil stains and black spots
Low cost

Typical Applications of 1070 Aluminum Blanks

Cookware: Non-stick pans, pressure cookers, utilizing excellent deep drawing performance and heat conductivity
Lighting Industry: Lampshades, embedded lighting, traffic light reflectors
Architectural Decoration: Attractive appearance, corrosion-resistant and durable
Insulated Pipes: Lightweight, low-density material suitable for pipe insulation
Electronics and Electrical Appliances: Capacitor housings, electronic tube isolators, leveraging excellent conductivity

How to Choose Between Hot Rolled and Cold Rolled

The choice between hot rolled and cold rolled 1070 aluminum discs mainly depends on your processing method and final product requirements:

Hot rolling is preferred for products requiring further deep drawing, spinning, or other large deformation processes; applications requiring high material ductility; and wide-width product processing.

Cold rolling is preferred for products requiring high dimensional accuracy; applications requiring a high surface finish; and products not requiring further large deformation processes.

For deep drawing processes such as kitchenware and lamps, it is generally recommended to use O-state (soft) material, as this state will not crack during subsequent stamping and spinning processes.