1050 Aluminum Bar

May. 21, 2025

The 1050 aluminum rod is a solid extruded product made from 1050 aluminum alloy, which belongs to the 1xxx series of "commercially pure" aluminum alloys. This alloy contains at least 99.5% aluminum and is known for its excellent corrosion resistance, high ductility, and superior thermal and electrical conductivity.

The 1050 aluminum rod is a commercially pure forged aluminum alloy and is a non-heat-treatable alloy. It is highly praised for its outstanding corrosion resistance, high ductility, and good thermal/electrical conductivity, making it suitable for applications where formability and durability are more critical than strength.

Haomei Aluminum is a trusted manufacturer of 1050 aluminum rods, providing high-purity aluminum rods with excellent corrosion resistance and outstanding processing performance. It is an ideal choice for applications in the electrical, chemical, and food industries. Customized sizes and fast delivery are available.

1050 Aluminum Bar

1050 Aluminum Bar Forms and Tempers

1050 Aluminum Bar Forms

1050 aluminum bar is available in various forms, including:

Round, square, hexagonal, and flat bars.

Product Forms	Description
1050 aluminum round bar	1050 aluminum round bar is a solid cylindrical rod characterized by excellent ductility, high thermal conductivity, and corrosion resistance. It is widely used in electrical conductors, chemical processing equipment, and architectural components where good formability and weldability are essential.
1050 aluminum square bar	1050 aluminum square bar features a uniform square cross-section, making it ideal for structural applications, framing, and general fabrication tasks. Its high aluminum purity ensures excellent corrosion resistance and ease of machining for light-duty components.
1050 aluminum hexagonal bar	1050 aluminum hexagonal bar provides a six-sided profile that offers both aesthetic appeal and functional grip in fastening and mechanical applications. It is commonly used in hardware, decorative parts, and connectors where lightweight and corrosion resistance are advantageous.
1050 aluminum flat bar	1050 aluminum flat bar consists of a flat, rectangular cross-section that is suitable for bus bars, heat exchangers, and various electrical applications. Its high electrical conductivity and excellent surface finish make it a preferred material in both industrial and architectural projects.

Standard Dimensions: Diameters ranging from 0.1 mm to 600 mm.

1050 Aluminum Bar Tempers

1050 Aluminum Bar Common Tempers:

O (Annealed): Soft, maximally ductile.
H14: Half-hard, work-hardened for moderate strength.
H18: Fully work-hardened, higher strength but lower ductility.

Temper	Description
1050 aluminum bar in O temper	1050 aluminum bar in O temper is annealed to its softest state, providing maximum ductility and excellent formability. This condition is ideal for deep drawing, spinning, and other applications requiring extensive cold working.
1050 aluminum bar in H14 temper	1050 aluminum bar in H14 temper is strain-hardened to a half-hard condition, offering a balanced combination of moderate strength and good workability. It is commonly used in applications where increased mechanical strength is needed without sacrificing too much formability.
1050 aluminum bar in H18 temper	1050 aluminum bar in H18 temper is fully work-hardened to achieve maximum strength, making it suitable for applications where rigidity and surface stability are critical. However, its ductility is significantly reduced compared to softer tempers.

These bars can also undergo surface treatments such as anodizing or polishing to enhance appearance and corrosion resistance.

1050 Aluminum Bar Standards and Equivalent Grades

International Standards:

ASTM B221, EN AW-1050A, UNS A91050.
DIN 3.0255 (Germany), BS 1B (United Kingdom).
Equivalent designations: AA1050, Al99.5 (ISO), and A91050 (UNS).

Purity: Aluminum content is at least 99.5%, with trace elements including iron (up to 0.4%) and silicon (up to 0.25%).

1050 Aluminum Bar Mechanical Properties

Tensile Strength: Typically ranges from 60 to 145 MPa, depending on temper.
Yield Strength: Approximately 25 to 120 MPa.
Elongation at Break: Varies between 4.6% and 37%, indicating high ductility.

1050 Aluminum Bar Physical Properties

Density: 2.71 g/cm³.
Melting Point: Approximately 650°C.
Thermal Conductivity: Approximately 222 W/m·K.
Electrical Resistivity: 0.282 µΩ·m.
Formability: Excellent workability, especially in cold forming processes.
Weldability: Can be welded using various techniques, including gas welding, arc welding, and resistance welding. For self-welding of 1050 aluminum, 1100 filler wire is recommended.
Surface Finish: Naturally high reflectivity, suitable for decorative applications.

1050 Aluminum Bar Chemical Composition

This alloy is primarily composed of aluminum with trace elements (maximum content by weight):

Iron (Fe): 0.40%
Silicon (Si): 0.25%
Copper (Cu), Magnesium (Mg), Manganese (Mn), Zinc (Zn), Titanium (Ti): each ≤ 0.05%.

High purity ensures excellent resistance to environmental and chemical degradation.

1050 Aluminum Bar Applications

Due to its various properties, 1050 aluminum bar is widely used across multiple industries:

Electrical Industry: Highly suitable for conductors, bus bars, connectors, and heat sinks due to its high conductivity.
Chemical and Food Processing: Used in equipment where excellent corrosion resistance is essential.
Architectural Applications: For decorative elements and reflective surfaces such as lamp reflectors and waterproof panels.
General Engineering: Suitable for applications requiring high ductility and corrosion resistance with low strength demands.
Food and Chemical Industry: Containers, storage tanks, and processing equipment.
Automotive: Lightweight decorative and non-structural parts.

Typical Application Scenarios

Field	Specific Application
Chemical Containers	Storage tanks, reactor linings (high corrosion resistance required)
Electronics Industry	Heat sink substrates, PCB supports (excellent thermal conductivity)
Decorative Building Materials	Lamp reflectors, nameplates (superior formability)
Food Packaging	Container manufacturing (compliant with hygiene and safety standards)

Advantages and Limitations of 1050 Aluminum Bar

Advantages: Excellent corrosion resistance, lightweight, recyclable, and cost-effective for non-structural applications.
Limitations: Lower mechanical strength compared to alloys such as 6061 or 7075; not suitable for high-stress applications.

Manufacturing and Welding of 1050 Aluminum Bar

Cold Workability: Highly suitable for bending, deep drawing, and spinning.

Machinability: Due to its softness, machinability is relatively poor, but it improves as hardness increases.

Welding: Compatible with TIG, MIG, and resistance welding. Recommended filler rods:

1100 for autogenous welding.

5356 for joining with 5xxx or 7xxx series alloys.

‌Processing Characteristics‌

Weldability: Supports various methods such as gas welding, TIG welding, and spot welding.
Forming Methods: Can be processed into bar, plate, foil, and extruded products.
Tolerance Control: Typical bar diameter tolerance of +0/-0.02mm, straightness ≤0.3mm/500mm.

Considerations for 1050 Aluminum Bar

Strength Limitation: Not suitable for structural applications requiring high strength.
Machinability: Relatively poor machinability compared to other aluminum alloys.
Heat Treatment: Cannot be strengthened through heat treatment; strength is improved via cold working.

1050 aluminum bar is a versatile material suitable for applications requiring excellent corrosion resistance, high ductility, and outstanding electrical conductivity rather than high mechanical strength.

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