Aluminum Precision Ground Bar

Tight-Tolerance Aluminum Precision Ground Bar in 1100, 3003, & 6061 Grades

Action Stainless supplies aluminum precision ground bar in grades ideal for applications requiring tight tolerances, consistent surface finishes, and dimensional accuracy. Ground bar is used extensively in high-precision machining, tooling setups, aerospace parts, and mechanical assemblies.


We stock aluminum precision bar in 1100, 3003, and 6061  grades. These alloys are selected for their strength, stability, and machinability, making them suitable for components where tolerance and consistency are critical.

Finishes & Processing Services

Aluminum precision ground bar is provided with a smooth, precision-ground finish that supports immediate machining and surface-critical work. For enhanced performance, we offer additional options such as custom polishing and anodizing. In-house services include saw cutting, centerless grinding, CNC machining, and packaging to customer requirements—ensuring every order is delivered ready for installation or fabrication.

Close-up of a stack of cylindrical metal bars, with reflective, circular ends.

Available Styles and Materials

We stock aluminum precision ground bar in:

  • 1100 Precision Bar

    Commercially pure aluminum with excellent corrosion resistance and high workability; ideal for electrical, chemical, and decorative applications

  • 3003 Precision Bar

    Strong corrosion resistance with good formability and weldability; well-suited for roofing, HVAC systems, and architectural trim

  • 6061 Precision Bar

    Aerospace-grade strength with superior fatigue resistance; commonly used in structural frameworks, tooling, and precision components

  • Polished/Anodized Finish

    Available by request for visual or corrosion-resistant applications

Diameter ranges and tolerances can be customized to fit machining and assembly specifications.

Aluminum Precision Ground Bar Specifications

Aluminum products used in ground bar fabrication are available in the following specifications:

Black triangle with a white outline pointing towards the right.

Grades Offered: 1100, 3003 and 6061:  selected for machining, aerospace, and tight-tolerance applications.

Black triangle with a white outline pointing towards the right, located in the top-left corner on a white background.

Product Forms: Round bar stock, precision ground to consistent diameters.

Black triangle within a white border, pointing right, located in the top left corner of a white background.

Finishes: Supplied in ground finish; polished and anodized available on request.

Black and white triangular symbol in the top left corner, pointing right.

Processing Capabilities: Centerless grinding, saw cutting, CNC machining, polishing, and kitting for precise component delivery.

These material options and fabrication services support a wide range of industrial, architectural, and custom expanded metal applications.

Aluminum Precision Ground Bar Applications

Aluminum precision ground bar is commonly used in:

Black and white triangle pointing to the right, outlined in white, in the upper-left corner.

Machined Components: Shafts, couplings, alignment pins, tool blanks, precision sleeves

Black triangle with white border pointing right.

Aerospace Parts: Control arms, gear supports, fixture mounts, landing gear pins, spacers

Black and white triangle with a black border, pointing right.

Tooling and Fixtures: Jigs, die sets, templates, hardened plates, gauge blocks

Black triangle within a white triangle on a white background.

Automotive and Motorsport: Hubs, shifter rods, engine supports, brackets, chassis connectors

Black triangle with a white border pointing to the right, in the upper-left corner of a white background.

Medical and Tech Equipment: Frame parts, lab supports, instrument shafts, mount rods, hardware cores