Stock code: 601677
Stock code: 601677
Among aluminum alloys, 6061 aluminum sheet is one of the most commonly used 6-series products. It offers good strength, excellent corrosion resistance, and great machinability, making it widely applicable across various industries.
Thickness is the most critical technical factor when selecting 6061 aluminum sheet. Choose the right thickness, and your project is half done. Today, we’ll provide a comprehensive analysis of 6061 aluminum sheet thickness specifications to help you quickly find the product that best suits your needs.
6061 aluminum sheet comes in a wide thickness range, from 0.2mm thin sheets to over 300mm thick plates. For customer convenience, we list both metric (mm) and imperial (inch) specifications.
Thin sheets are mainly used in weight-sensitive applications requiring forming:
– 0.5mm (0.02 inch)
– 1.0mm (0.04 inch)
– 1.5mm (0.06 inch)
– 2.0mm (0.08 inch)
– 3.0mm (1/8 inch)
– 5.0mm (3/16 inch)
Medium plates are the most widely used thickness range in industrial applications:
– 6.0mm (1/4 inch)
– 8.0mm (5/16 inch)
– 10.0mm (3/8 inch)
– 12.0mm (1/2 inch)
– 15.0mm (5/8 inch)
– 20.0mm (3/4 inch)
– 25.0mm (1 inch)
Thick plates are used for heavy-duty machining and load-bearing structures:
– 30.0mm, 35.0mm, 40.0mm
– 50.0mm (2 inches)
– 60.0mm, 80.0mm, 100.0mm
– 120mm to 300mm
Connecting thickness to applications makes selection easier.
0.2mm – 3.0mm Thin Sheets:
Ideal for electronic product housings, signs, decorative panels, and lamp reflectors. These applications require lightweight materials that are easy to form.
3.0mm – 12.0mm Medium Plates:
Suitable for automotive body parts, marine interiors, building curtain walls, mold backing plates, and tooling fixtures. This thickness range balances strength and workability.
12.0mm and Above Thick Plates:
Perfect for aerospace structural components, heavy machinery parts, injection mold bases, and military products. Thick plates provide sufficient load capacity and machining allowance.
When buying aluminum sheet, don’t just look at nominal thickness. Tolerance matters just as much. Tolerance refers to the allowable error between actual thickness and nominal thickness.
– Standard grade tolerance: Usually controlled within ±0.15mm to ±0.30mm
– High precision grade: Can be controlled within ±0.05mm
Why does tolerance matter? If you’re doing precision machining, large tolerances will increase your scrap rate. If you need multiple sheets for joining, inconsistent thickness will cause uneven welds.
6061 aluminum sheet typically follows ASTM B209 or GB/T 3880.3 standards. These standards specify clear tolerance ranges for different thickness categories.
Selecting the right thickness doesn’t have to be complicated. Just follow these four steps:
For structural parts, calculate the forces and choose thicker material. For decorative applications, follow standard thin sheet selections.
If you plan to grind, mill, or precision machine the material, leave extra thickness. For example, if your final dimension is 5mm, consider buying 6mm or 8mm sheet.
Thicker means heavier, which means higher price. Choose the most economical thickness that still meets your performance requirements.
When unsure, ask the manufacturer directly. Tell them your application, and they’ll provide professional recommendations.
Whether you need thin sheets for precision parts or thick plates for load-bearing structures, choosing the correct 6061 aluminum sheet thickness directly impacts your project success. As a reliable aluminum manufacturer, Mingtai Aluminum offers a full range of 6061 aluminum sheet from 0.2mm to 300mm. We provide complete specifications with controlled tolerances, ensuring you get the right material for your needs.
Q: What is the standard thickness of 6061 aluminum sheet?
A: There’s no single “standard” thickness. The regular supply range is 0.2mm to 300mm. Common stock thicknesses include 1mm, 2mm, 3mm, 5mm, 6mm, 10mm, 12mm, 20mm, 25mm, 50mm, and 100mm.
Q: What is the thickness tolerance for 6061 aluminum sheet?
A: Tolerances vary by thickness and width. For 6.35mm nominal thickness, standard tolerance is typically ±0.15mm to ±0.30mm. Mingtai Aluminum can provide detailed tolerance data upon request.
Q: How are thin and thick sheets classified?
A: Industry practice classifies sheets below 6mm as thin, 6mm to 25mm as medium, and above 25mm as thick. Different thickness ranges suit different processing methods and applications.
Q: Can I buy 6061 aluminum sheet over 200mm thick?
A: Yes. While 200mm is the typical stock thickness limit, specialized manufacturers can produce 300mm or even thicker plates, mainly for heavy machinery and large molds.
Q: Is thickness uniform across a full 6061 sheet?
A: Yes, the rolling process ensures high uniformity. However, the center may be microscopically thicker than edges, which is normal and well within standard tolerance ranges.
