Sourcing an aluminum round plate for industrial manufacturing, cookware production, or custom fabrication? This guide covers everything procurement teams need — alloy grades, standard sizes from 4 inch to 36 inch aluminum disc, surface finishes, pricing factors, and how to choose a reliable manufacturer for export orders.
Whether you call it an aluminum plate, aluminum circle, or aluminum disc, the product is the same: a flat, circular piece of aluminum cut or stamped from rolled sheet stock. Understanding the full specification picture is the key to comparing quotes accurately and getting consistent quality across orders.
What Is an Aluminum Round Plate?
An aluminum round plate (also called an aluminum disc or aluminum circle) is a circular blank produced by punching or cutting from flat-rolled aluminum sheet. It is one of the most widely used semi-finished aluminum forms in manufacturing.
Common product names for the same item include:
- Aluminum round plate
- Aluminum disc
- Aluminum circle
- Aluminum circle pan blank (cookware industry)
- Aluminum circle ring (when center-punched with a hole)
The aluminum circle ring variant — an aluminum disc with center holes — is used in applications requiring a central bore, such as spinning dies, flanges, gaskets, and certain cookware lids.
Main Applications of Aluminum Round Plates
1. Cookware Manufacturing
The largest single application for aluminum round plates globally. Alloys 1050, 1060, 1100, and 3003 in annealed (O) temper are deep-drawn or spin-formed into aluminum circle pans, pot blanks, woks, and pressure cooker bodies. The aluminum circle pan blank must have excellent ductility, uniform grain structure, and a clean surface to survive multi-stage forming without cracking.
2. Traffic Signs & Road Signage
Anodized or PVDF-coated aluminum round plates are used as blank sign substrates. Common sizes include 12 inch aluminum disc, 24 inch round aluminum plate, and custom diameters for regulatory and informational signs.
3. Industrial Flanges & Machinery Parts
Precision-cut aluminum round plates in 5052, 6061-T6, and 7075 alloys serve as flanges, spacers, bearing retainers, and end caps in mechanical assemblies. Aluminum discs with center holes are particularly common in this segment.
4. Lighting & Reflectors
High-purity 1050 and 1060 aluminum discs with mirror-finish surfaces are used as reflector blanks for LED housings, stage lighting, and solar concentrators.
5. Sublimation Blanks & Custom Fabrication
White-coated aluminum round plates in small sizes (4 inch aluminum disc, 6 inch round aluminum plate) are used as photo sublimation blanks for personalized printing. These require a smooth, consistently coated surface.
Standard Sizes: 4 Inch to 36 Inch Aluminum Disc
Aluminum round plates are available in a wide range of standard diameters. The table below covers the most commonly ordered sizes and their typical applications.
| Diameter | Common Name | Thickness Range | Typical Application |
| 100 mm (4 in) | 4 inch aluminum disc | 0.5 – 4.0 mm | Sublimation blanks, small flanges, lids |
| 125 mm (5 in) | 5 round aluminum plate | 0.5 – 4.0 mm | Small cookware, custom fabrication |
| 150 mm (6 in) | 6 inch round aluminum plate | 0.8 – 5.0 mm | Pan blanks, signs, reflectors |
| 200 mm (8 in) | 8 inch round aluminum plate | 1.0 – 6.0 mm | Cookware, flanges, lighting fixtures |
| 300 mm (12 in) | 12 inch aluminum disc | 1.0 – 8.0 mm | Wok blanks, pressure cooker lids, signs |
| 600 mm (24 in) | 24 inch round aluminum plate | 1.5 – 10.0 mm | Large pan blanks, industrial flanges |
| 900 mm (36 in) | 36 inch round aluminum plate | 2.0 – 12.0 mm | Heavy industrial use, large sign blanks |
Custom diameters are available in steps of 1 mm. Most manufacturers accept tolerance requirements per ASTM B209 or EN 485. For tight-tolerance applications (e.g., machinery flanges), specify diameter tolerance (typically ±0.5 mm) and flatness at time of order.
Alloy Grades and Temper Selection
The alloy and temper of an aluminum round plate determine its formability, strength, corrosion resistance, and price. Below is a comparison of the alloys most commonly supplied for disc and circle applications.
| Alloy | Temper | Key Properties | Recommended For |
| 1050 / 1060 | O, H14, H18 | High purity, max ductility, bright surface | Cookware blanks, reflectors, transformer discs |
| 1100 | O, H14, H16 | Excellent formability, food-grade, weldable | Aluminum circle pan, utensil blanks, chemical equipment |
| 3003 | O, H14, H24 | Moderate strength, good corrosion resistance | Cookware, HVAC parts, general fabrication |
| 5052 | O, H32, H34 | High strength, excellent marine corrosion resistance | Structural flanges, marine applications |
| 6061 | T4, T6 | High strength, machinable, heat-treatable | Precision machined flanges, aerospace parts |
| 8011 | O, H14 | Ultra-thin, FDA/LFGB compliant surface | Food packaging discs, pharma seals |
Key rule: For deep-drawing and spin-forming (cookware), always specify O (fully annealed) temper. Harder tempers (H14, H16) are suitable for flat applications such as signs and sublimation blanks where no post-forming is required.
Full Specification Reference
| Parameter | Standard Range | Note |
| Diameter | 50 mm – 1,200 mm | Custom sizes accepted in 1 mm steps |
| Thickness | 0.3 mm – 12.0 mm | Thin-gauge (< 0.5 mm) requires minimum order |
| Diameter tolerance | ±0.5 mm (standard) | ±0.2 mm available on request |
| Flatness | ≤ 1.0% of diameter | Tighter flatness for machined parts on request |
| Surface | Mill finish, anodized, PVDF, polyester coated, bright finish | Specify side(s) to be coated |
| Alloys available | 1050, 1060, 1100, 3003, 5052, 6061, 8011 | Other alloys on request with MOQ |
| Compliance standards | ASTM B209 / EN 485 / GB/T 3880 | MTC provided with every shipment |
| Food-grade certification | FDA / LFGB (1-series and 8011 alloys) | Required for cookware and packaging |
| EU market | REACH / RoHS compliant | Documents available on request |
| MOQ | From 500 kg per specification | Lower MOQ for samples available |
Aluminum Round Plate Price: Key Factors
The price of an aluminum round plate depends on the same core drivers as any aluminum flat-rolled product, plus a few disc-specific variables.
1. LME Aluminum Base Price
All aluminum pricing is anchored to the London Metal Exchange (LME) spot price. Quotes are typically structured as: LME price + processing premium + surface surcharge.
2. Alloy and Temper
1050/1060/1100 O-temper discs are the most competitively priced. 5052 and 6061 carry premiums of 20–50% due to alloying elements and processing complexity.
3. Diameter and Thickness
Larger diameters require wider coil stock and more punching force, increasing tooling wear. Very thin gauge (< 0.5 mm) and very thick gauge (> 8 mm) both carry processing premiums.
4. Surface Finish
Mill finish is the baseline. Anodizing adds $0.40–$1.20/kg; PVDF or polyester coating adds $0.30–$0.80/kg depending on film thickness and color. Bright mirror finish requires additional polishing steps.
5. Order Quantity
MOQ starts from approximately 500 kg per specification. Orders above 3 MT per specification unlock volume pricing. Container-load orders (typically 18–22 MT) receive the most competitive FOB rates.
| Product | Alloy / Temper | Indicative FOB Price (USD/MT) |
| Mill finish disc — general | 1100-O | $2,200 – $2,600 |
| Cookware-grade disc | 1050/1060-O | $2,300 – $2,700 |
| 3003 disc — construction / signs | 3003-H14 | $2,400 – $2,800 |
| 5052 disc — structural | 5052-H32 | $2,900 – $3,500 |
| Anodized disc | 1100 / 3003 | $3,200 – $4,200 |
| PVDF coated disc (white) | 3003-H14 | $3,100 – $3,900 |
Prices are indicative FOB China port and fluctuate with LME. Request a formal quotation for current pricing and your specific diameter/thickness/alloy combination.
Quality Standards and Certifications
When sourcing aluminum round plates for regulated or food-contact applications, verify the following from your supplier:
- ISO 9001 — quality management system certification
- Mill Test Certificate (MTC) — chemical composition and mechanical properties per heat/lot
- ASTM B209 / EN 485 / GB/T 3880 — dimensional and mechanical compliance
- FDA / LFGB — required for cookware blanks and food-packaging discs
- REACH / RoHS — required for sales into EU markets
Always request a sample MTC before approving a new supplier. The MTC should match the alloy, temper, heat number, and dimensions on the purchase order.
Why Source Direct from a Manufacturer?
Buying aluminum round plates directly from a factory versus a trading company gives you measurable advantages:
- Competitive FOB pricing — no middleman markup; pricing tracks LME directly
- Full alloy and size range — 1050, 1060, 1100, 3003, 5052, 6061, 8011 in stock and custom-cut
- Custom diameters and thicknesses — from 50 mm to 1,200 mm diameter; 0.3 mm to 12 mm thick
- Surface options — mill finish, anodized, PVDF coated, polyester coated, bright/mirror finish
- MTC with every shipment — full chemical and mechanical traceability
- Flexible MOQ — from 500 kg for trial orders; container-load pricing available
- Export experience — regular shipments to the US, Canada, Europe, Southeast Asia, and the Middle East
Export Markets Served
Our aluminum round plates and discs are exported to buyers in more than 30 countries. Key markets include:
- North America — cookware manufacturing, sign fabrication, sublimation blanks
- Europe — cookware OEMs, automotive parts, architectural signage
- Southeast Asia — utensil manufacturing, HVAC components, construction
- Middle East — industrial fabrication, construction hardware
- South America — cookware and packaging manufacturing
Frequently Asked Questions
What is the difference between an aluminum round plate and an aluminum disc?
The terms are used interchangeably. “Aluminum round plate” is more common in industrial procurement; “aluminum disc” or “aluminum circle” is more common in manufacturing and fabrication contexts. The product is the same: a flat, circular aluminum blank.
What sizes are available for aluminum round plates?
We supply standard diameters from 50 mm (approximately 2 inches) to 1,200 mm, including the most common sizes: 4 inch aluminum disc (100 mm), 6 inch round aluminum plate (150 mm), 12 inch aluminum disc (300 mm), 24 inch round aluminum plate (600 mm), and 36 inch round aluminum plate (900 mm). Custom diameters are available in 1 mm steps.
What alloy is best for aluminum circle pans?
1050, 1060, and 1100 alloys in O (fully annealed) temper are the standard choice for aluminum circle pan and cookware blank applications. They offer the ductility required for deep drawing without cracking and comply with FDA/LFGB food-contact standards. 3003-O is also used when slightly higher strength is needed.
Can I order aluminum discs with center holes?
Yes. Aluminum discs with center holes (aluminum circle rings) are available in standard and custom bore diameters. Specify the outer diameter, inner bore diameter, and thickness when requesting a quote. Common bore sizes are 10 mm, 20 mm, 25 mm, and 50 mm.
What is the minimum order quantity?
Our standard MOQ is 500 kg per specification (alloy + temper + diameter + thickness + surface finish). Sample orders and trial quantities below this threshold are available for new buyers on a case-by-case basis.
Do you provide Mill Test Certificates?
Yes. A Mill Test Certificate (MTC) is issued with every production lot, showing chemical composition, mechanical properties, and dimensional verification. Documents are available in English and comply with ASTM B209 or EN 485 format as required.
What surface finishes are available for aluminum round plates?
Available finishes include: mill finish (natural), bright/mirror finish, anodized (clear or color), PVDF coated, polyester coated, and embossed/stucco surface. Specify which side(s) require surface treatment at time of order.
Request a Quote for Aluminum Round Plates
Ready to source aluminum round plates with consistent quality and competitive FOB pricing? Send your specifications — alloy, temper, diameter, thickness, surface finish, and target quantity — and we will respond with a formal quotation within 24 hours.
Our team handles all export documentation: commercial invoice, packing list, MTC, bill of lading, and certificates of origin. We ship to buyers in North America, Europe, Southeast Asia, the Middle East, and South America.