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ALUMINUM PLATE6000 SERIES · ALUMINUM–MAGNESIUM–SILICON

MACHINABLE. WELDABLE. VERSATILE.

6061-T6
Aluminum Plate

A heat-treatable aluminum plate for machined components, base plates and general engineering. T6 combines useful strength with low weight and a broad range of fabrication options.

T6 TemperCNC MachiningPlate & BlanksCut to Size

6061-T6 Aluminum Plate product view

6061Al–Mg–Si alloy

T6Solution treated & aged

≈2.70Density · g/cm³

PlateGeneral engineering

01 / MATERIAL OVERVIEWMaterial Features

6061 uses magnesium and silicon as its principal alloying elements. It is widely selected for a practical balance of strength, machining performance, corrosion resistance and weldability. For narrow rectangular blanks, see 6061-T6 aluminum flat bar; compare 5052-H32 aluminum sheet for formed sheet-metal parts.

Machining Versatility

Suitable for milling, drilling and tapping. Plan tool access, workholding and allowances around the finished component.

Low Component Weight

An aluminum base plate can reduce assembly weight. Final stiffness still depends on thickness, span and support geometry.

Heat-Treated Strength

T6 is solution heat-treated and artificially aged. Specify the required mechanical properties for the actual thickness.

Welded Fabrication

Suitable welding procedures are available, but heat can reduce strength near the weld. Design for the completed welded condition.

Surface Options

Mill finish, brushed and anodized finishes can be discussed. Define the visible face and cosmetic acceptance criteria.

Dimensional Planning

T6 alone does not guarantee low residual stress or precision flatness. Specify stress relief and flatness separately when critical.

02 / TECHNICAL DATAMaterial Reference

Item	Reference / requirement
Magnesium Mg	0.8–1.2%
Silicon Si	0.40–0.80%
Copper Cu	0.15–0.40%
Chromium Cr	0.04–0.35%
Aluminum Al	Balance

Reference values support material selection. Confirm the complete chemistry, mechanical properties and acceptance criteria in the purchase specification and batch report.

03 / CONDITION & PERFORMANCESpecify the Right Condition

T6 identifies solution heat treatment followed by artificial aging. T651 additionally denotes stress relief by controlled stretching; it should not be substituted for T6 without confirming the order specification.

Requirement	What to confirm
Material condition	Exact grade and temper or delivery condition
Mechanical properties	Applicable limits for the product form and dimensions
Inspection	Test method and required material documentation

04 / DIMENSIONS & SUPPLYDimensions for Your Application

Item	Ordering guidance
Thickness	Specify nominal thickness and tolerance
Width × length	Provide finished dimensions and cutting allowance
Flatness	Define the measurement method and acceptance limit
Surface	Mill finish or specified finishing requirements

Provide dimensions in millimeters and identify whether they refer to incoming stock or finished parts. Available sizes, quantity and lead time are confirmed in the quotation.

05 / APPLICATIONSTypical Applications

Machine Base Plates

Mounting plates and structural panels with specified flatness and hole positions.

Jigs & Fixtures

General machining fixtures where strength, weight and stability suit the process.

Transport Components

Brackets and equipment parts designed for the actual loading and joining method.

Equipment Housings

Machined enclosures, covers and support panels.

Thermal Components

Heat-transfer parts where surface contact and geometry are considered.

General Fabrication

Cut blanks and fabricated assemblies made to a defined drawing.

06 / FABRICATION & FINISHPlan the Fabrication Route

Operation	Details to define
CNC machining	Use balanced material removal where possible and inspect after unclamping.
Bending	T6 has less forming capacity than softer tempers; confirm bend radius and direction with trial pieces.
Welding	Select filler, joint preparation and final strength requirements for the assembly.
Surface finishing	Specify anodizing type, thickness, masking and color expectations.

07 / PACKING & INSPECTIONPacking, Handling & Inspection

Protect the Material

Specify package size and unit weight for your handling equipment. Agree on edge protection, separation between pieces and moisture protection appropriate to the shipment.

Store & Handle Carefully

Store dry and supported. Keep contact surfaces and finished faces free from contamination and handling damage. Preserve labels for batch identification.

Check on Receipt

Match grade, condition and batch identification to the order.
Check quantity, dimensions and packaging condition.
Inspect visible surfaces and edges before fabrication.
Review the agreed material and inspection documents.

08 / FREQUENTLY ASKED QUESTIONSSelection FAQs

Is T6 the same as T651?

No. Both are aged conditions, but T651 includes a controlled stretching step for stress relief. Order the condition required by the drawing.

Will the plate remain flat after machining?

Machining can release residual stress. Confirm the temper, material-removal sequence and final inspection conditions.

Can it be welded?

Yes, using an appropriate procedure. Account for changes in strength around the weld.

09 / ORDERING GUIDESend a Complete Specification

Please include: 6061-T6 aluminum plate; thickness × width × length; quantity; cutting allowance; flatness; surface finish; material report requirements.

Specify the applicable plate standard, such as ASTM B209/B209M, together with the required edition, dimensions and acceptance criteria.

Include a drawing for processed parts and identify any critical dimensions. Final availability, pricing, minimum order quantity and delivery schedule are subject to quotation.

6061-T6Aluminum Plate