6061 Aluminum Square Bar

6061 Aluminum Square Bar is a heat-treatable solid extruded aluminum bar known for its excellent corrosion resistance, ease of machining, and remarkable mechanical properties. It finds extensive applications in structural supports, shipbuilding, aircraft components, and can be surface treated, milled, or custom cut as required.

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Chalco maintains a substantial in-stock inventory of 6061 Aluminum Square Bar for immediate availability and fast delivery. Our ASTM B221 compliant products are ready to meet your project's demands promptly.

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Hot selling size table of 6061 Aluminum Square Bar

6061-T6 Aluminum Square Bar

Standards: ASTM B221, AMS-QQ-A-200/8, EN755

6061-T6 aluminum square bar is produced by solution heat treatment followed by artificial aging. It offers excellent general strength, corrosion resistance, and good weldability, though it may retain some internal residual stress.

Typical Applications: Ideal for general structural components, truck frames, marine parts, furniture, and various mechanical parts where ultimate dimensional stability after machining isn't critical.

Can't find your exact size? Check our Aluminum Extrusion Die List for more comprehensive custom options!

6061-T6511 Aluminum Square Bar

Standards: ASTM B221, AMS-QQ-A-200/8, EN755

6061-T6511 aluminum square bar undergoes the same heat treatment as T6, plus additional stretching for stress relief and straightening. This significantly reduces internal residual stress, ensuring minimal distortion and high dimensional stability during subsequent precision machining.

Typical Applications: Best suited for parts requiring extensive precision machining and strict dimensional accuracy post-processing, such as aerospace structural components, precise molds, complex fixtures, and high-precision machinery parts.

Can't find your exact size? Check our Aluminum Extrusion Die List for more comprehensive custom options!

6061 Aluminum Square Bar Specifications

General Information

Alloy Name: 6061 Aluminum Square Bar
Tempers: T6, T6511
Equivalent Designations: A96061, EN AW-6061, AlMg1SiCu, HE20, AA6061, 3.3211

Size Range

Metric Dimensions:Minimum[10x10mm];Maximum [220x220mm]

Popular Metric Sizes Available

Imperial Dimensions: Minimum[0.25"x0.25"];Maximum[6"x6"]

Popular Imperial Sizes Available

Length & Tolerance

Standard Lengths: Up to 6 meters (approx. 20 feet), with options for fixed, cut-to-length, or custom lengths.
Cutting Tolerance: Standard cut tolerance approx. ±6mm (approx. ±1/4 inch); precision custom cuts available up to ±1.5mm (approx. ±1/16 inch).

Surface Finish

Anodizing, Electrophoresis Coating, Powder Coating, etc.

Manufacturing Process

Extrusion, Cold Finish (specifically for stress relief through stretching).

Applicable Standards

UNS A96061, ASTM B211, ASTM B221, AMS 4115, AMS 4116, AMS 4117, AMS QQ-A-225/8, AMS QQ-A-200/8.

Explore Other 6061 Aluminum Bar Shapes

6061 Aluminum Round Bar

Our 6061 aluminum round bar offers excellent strength and corrosion resistance, suitable for general-purpose applications.

Diameter: 5-420mm

Length: 100-6000mm

6061 Aluminum Flat Bar

This versatile 6061 aluminum flat bar is a prime choice for structural and general fabrication needs.

Thickness: 0.08"-9.8"(2-250mm)

Width: 0.2"-11.8"(5-300mm)

Length: 3m/6m/12m

6061 Aluminum Hexagonal Bar

Our 6061 aluminum hexagonal bar provides a strong, machinable option for various fastening and structural applications.

Across Flat: 12-65mm

Length: 100-2500mm

Chalco 6061 aluminum square bar physical properties

What are the characteristics of 6061 Aluminum Square Bar?

• Excellent corrosion resistance
• Heat-treatable
• Excellent welding capabilities
• Good machinability
• Excellent strength-to-weight ratio

What are the best application areas for 6061 Aluminum Square Bar?

• Structural and Support Applications: Commonly used in structural frames and support structures.
• Marine and Shipbuilding: Structural support, ship equipment brackets, protective devices, ship hatches, and door and window frames.
• Aerospace: Suitable for aerospace applications, such as aircraft structures.
• Architectural Decoration: Used in decorative materials, steel structures, curtain walls, and door and window manufacturing.

What Can We Offer as a Premium Supplier of 6061 Aluminum Square Bar?

• High-Quality Products: Manufactured from high-grade aluminum ingots and through advanced extrusion or cold finishing processes, our 6061 aluminum square bars deliver high strength, excellent mechanical properties, and superior dimensional stability.
• Outstanding Surface Finish & Precision Control: Through high-precision manufacturing, rigorous dimensional checks, and surface treatment, we ensure a smooth, flat surface with tight tolerances. Our square bars are ideal for high-precision machining with minimal residual stress.
• Multiple Temper Options Available: We offer 6061 square bars in a variety of tempers such as T6 and T6511, tailored to meet diverse requirements for strength, toughness, corrosion resistance, and post-machining stability.
• Fast Delivery & Custom Services: With a large stock of standard metric and imperial square bar sizes, we ensure prompt delivery. We also support custom lengths, precision cutting, and other value-added services upon request, helping reduce your downstream processing costs.
• Competitive Pricing: Thanks to scaled production and optimized supply chains, we provide cost-effective 6061 aluminum square bars. Whether it’s bulk purchases or small-quantity orders, we offer flexible procurement options and reasonable prices.
• Rigorous Quality Inspection: All our 6061 square bars can be supplied with ultrasonic testing (UT), hardness testing, chemical composition analysis, and more, upon request. Products meet ASTM B221, ASTM B211, AMS QQ-A-200/8 and other relevant standards, supporting third-party certifications.
• Professional Technical Support & Customer Service: We provide expert technical consultations and material selection advice to help you choose the most suitable alloy and temper for your specific application. Our responsive after-sales team ensures a smooth purchasing experience.

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Chalco 6061 aluminum square bar extrusion mold list

Chalco's extrusion molds are generally divided into two types. One corresponds to proprietary molds tailored for specific alloys and conditions, while the other is a set of general alloy molds. The general alloy molds typically refer to 6xxx alloys, such as 6060, 6061, 6063, 6082, etc. You can select the corresponding dimensions, alloy, and extrusion press tonnage based on project requirements, or directly obtain detailed information.Instant Quote