3003 aluminum tread plate, often referred to as "diamond plate" or "floor plate," is a highly adaptable aluminum alloy recognized for its excellent corrosion resistance, moderate strength, and distinct raised pattern that improves traction. These qualities make it an ideal choice for numerous applications, particularly in settings where both durability and aesthetics are key considerations.
Properties of 3003 Aluminum Tread Plate
The 3003 aluminum tread plate combines the benefits of being lightweight, corrosion-resistant, and moderately strong. Composed mainly of aluminum (98.7%) and manganese (1-1.5%), it offers about 20% more strength compared to pure aluminum (1100 series). Typically processed in the H22 temper (which involves strain-hardening and partial annealing), this enhances both its formability and strength.
This alloy is well-known for its polished surface, featuring a raised diamond pattern that provides excellent anti-slip qualities. The 3003 alloy is not only corrosion-resistant but also offers good machinability, making it suitable for operations like deep drawing, spinning, welding, and brazing.
Applications of 3003 Aluminum Tread Plate
The 3003 aluminum tread plate is widely used in a variety of industries due to its durability and functionality. Common applications include:
Truck Bodies: Used for flooring and surfaces requiring resistance to wear and tear.
Support Structures: Ideal for creating structural elements that need to withstand mechanical stresses.
Walkways and Platforms: The raised pattern enhances safety by providing anti-slip properties.
Trench Covers: Protecting areas while maintaining easy access and durability in high-traffic environments.
With its balance of strength, lightweight properties, and excellent corrosion resistance, 3003 aluminum tread plate is a versatile and reliable material for various applications in both commercial and industrial settings.
3003 Aluminum Tread Plate Specifications
| Specification Item | Details |
| Thickness | Ranges from 0.063 inches to 0.25 inches |
| Dimensions | Standard sheet sizes include: |
| 48 inches x 96 inches | |
| 48 inches x 120 inches | |
| 60 inches x 192 inches | |
| Custom sizes available | |
| Surface Treatment | Raised diamond or tread pattern, anti-slip and aesthetically pleasing. |
| Available in a polished, bright finish (Tread Brite) or matte finish (Mill Finish), suitable for decorative or structural uses. | |
| Weight | Varies by thickness: for example, a 0.063-inch sheet weighs approximately 1.01 lbs/sq. ft. |
| Standards and Certifications | Complies with ASTM B209 (material standards) and ASTM B632 (surface treatment requirements). |
| Price Cost | Discounts are available for bulk purchases and competitive pricing. |
| Delivery Time | Custom cuts typically ship in 7-10 days. |
Features of 3003 Aluminum Tread Plate
Weaker than 6061 Aluminum Tread Plate
Non-heat treatable
Formability/Workability: Excellent
Weldability: Excellent
Machinability: Good
Corrosion resistance: Good
3003 Aluminum Tread Plate Typical Pattern Types
| Pattern Name | Features | Suitable Applications |
| 5 Bar 3003 Aluminum Tread Plate | Excellent anti-slip properties, strong load-bearing capacity | Ship decks, industrial platforms |
| 3 Bar 3003 Aluminum Tread Plate | Balances anti-slip and decorative appearance | Building facades, stair treads |
| Bean/Diamond 3003 Aluminum Tread Plate | Strong decorative appeal, various surface glosses | Furniture, indoor decorations |
Aluminum Tread Plate 3003 Chemical Composition
3003 is an Al-Mn series rust-resistant aluminum alloy, with a manganese content of 1.0-1.5%, a copper content of 0.05-0.2%, and the remainder is aluminum and trace impurities.
The dense oxide film formed on the surface can resist corrosion from the atmosphere, fresh water, and other environments, making it suitable for humid conditions.
| Element | Percentage |
| Al | 98.7 |
| Cu | 0.05 - 0.2 |
| Fe | 0.7 max |
| Mn | 1 - 1.5 |
| Si | 0.6 max |
| Zn | 0.1 max |

Aluminum Tread Plate 3003 Mechanical Information
| Param | Imperial | Metric |
| Density | 0.1 lb/in³ | 2.78 g/cc |
| Ultimate Tensile Strength | 22,000 psi | 152 MPa |
| Yield Tensile Strength | 21,000 psi | 145 MPa |
| Fatigue Strength | 9,000 psi | 62.1 MPa |
| Shear Strength | 14,000 psi | 96.5 MPa |
| Melting Point | 1,190 - 1,210°F | 643 - 654°C |
3003 Aluminum Tread Plate Applications
Truck Trailers and Trailer Floors:
The 3003 aluminum tread plate is commonly used in truck trailers and floors due to its strong strength and resistance to corrosion. These applications demand materials that can withstand abrasion and provide anti-slip features to safeguard goods during transportation. The raised surface of the tread plate offers excellent traction, minimizing the risk of accidents on slippery or oily surfaces.
Sidewalks, Ramps, and Stair Treads:
Widely utilized for sidewalks, ramps, and stair treads, the 3003 aluminum tread plate delivers strong performance and consistent anti-slip properties, ensuring pedestrian safety in these areas. Its exceptional resistance to corrosion enables it to withstand extended outdoor exposure, particularly in humid climates, preventing rust and deterioration.
Toolboxes and Storage Boxes:
3003 aluminum tread plate is frequently chosen for manufacturing toolboxes and storage containers due to its light weight, durability, and resistance to corrosion. It helps protect internal contents from external elements. The material's ability to resist wear and tear ensures long-lasting use, keeping the boxes looking good over time.
Decorative Wall Panels and Architectural Decoration:
As a decorative building material, the 3003 aluminum tread plate provides both strength and durability while contributing to the aesthetic appeal of a space. Its distinctive diamond pattern enhances visual interest, making it suitable for both interior and exterior decorative wall panels. It adds a modern, artistic touch to architectural designs.
Garage and Workshop Floors:
In garages and workshops, the 3003 aluminum tread plate is highly valued for its durability and anti-slip qualities. It can handle the weight of heavy machinery and equipment while maintaining a stable surface, thus reducing the risk of accidents. Its corrosion resistance ensures a long service life, even in damp or humid environments.






