ASTM A240 304 UNS S30400 Brushed Stainless Steel Sheet DP1 Finish 0.8–2.0mm

Products Description

Our ASTM A240 304 UNS S30400 Brushed Stainless Steel Sheet with DP1 Finish is an austenitic stainless steel sheet supplied in thicknesses from 0.8mm to 2.0mm. Grade 304, identified as UNS S30400, provides a combination of corrosion resistance, strength, formability, weldability, and surface appearance for a wide range of industrial and architectural applications.

Manufactured to ASTM A240 requirements, this 304 stainless steel sheet is processed with a DP1 brushed finish to provide a directional surface texture and a uniform decorative appearance. The brushed surface can help reduce the visual impact of minor fingerprints and surface marks compared with highly reflective finishes.

We supply 304 brushed stainless steel sheets in standard and custom sizes, with options for cutting, edge processing, surface protection, and customized dimensions according to project requirements.

ASTM A240 304 / UNS S30400 is a chromium-nickel austenitic stainless steel. The balanced Cr-Ni composition provides good corrosion resistance, formability, weldability, and durability for general industrial and architectural applications.

DP1 brushed finish is a mechanically processed stainless steel surface featuring a fine, directional grain pattern. The finish is produced by brushing the stainless steel surface with controlled abrasive materials to create consistent linear lines and a uniform metallic appearance.

For 304 DP1 brushed stainless steel sheet, the brushing process is applied to the surface of ASTM A240 Grade 304 / UNS S30400 stainless steel, combining the material's corrosion resistance and fabrication performance with a decorative brushed appearance.

How Is DP1 Brushed Finish Produced?

The basic production process generally includes:

304 stainless steel sheet → Surface preparation → Mechanical abrasive brushing → Cleaning → Inspection → Protective film application

The final appearance can vary depending on the abrasive grade, brushing pressure, processing speed, grain direction, and base surface condition.

DP1 vs No.4 Brushed Finish

DP1 and No.4 may produce similar directional brushed appearances, but they should not automatically be considered identical finishes. DP1 may represent a supplier-specific or project-specific surface designation, while No.4 is a widely used stainless steel finish designation.

For appearance-critical projects, buyers should confirm the surface sample, grain direction, roughness, and applicable finish specification before mass production.

For our ASTM A240 304 DP1 brushed stainless steel sheet, the exact DP1 surface appearance can be confirmed according to the customer's technical requirements or approved sample.

304 brushed stainless steel sheet with DP1 finish combines the corrosion resistance and fabrication performance of ASTM A240 Grade 304 / UNS S30400 with a controlled directional brushed surface. The mechanical brushing process creates fine linear grain patterns, giving the sheet a clean and consistent metallic appearance.

Directional Brushed Grain

The most distinctive feature of 304 DP1 brushed stainless steel sheet is its directional grain. Fine abrasive lines run consistently along the surface, creating a modern linear appearance.

The grain direction can be important for architectural and decorative projects. When multiple sheets are installed together, maintaining the same brushing direction helps create a more uniform finished appearance.

Low-Glare Metallic Appearance

Compared with mirror-polished stainless steel, the DP1 brushed surface has a softer and lower-glare appearance. This makes it suitable for visible surfaces where a clean metallic finish is required without the strong reflection of a polished surface.

Fingerprint and Minor Mark Visibility

The linear brushed texture can make minor fingerprints, light handling marks, and small surface imperfections less noticeable than on highly reflective stainless steel surfaces. Regular cleaning is still recommended to maintain the appearance of the sheet.

Corrosion Resistance

The underlying 304 stainless steel provides good resistance to general atmospheric corrosion and many mildly corrosive environments. The brushed finish does not change the grade of the stainless steel; the corrosion resistance primarily comes from the 304 alloy itself.

Our ASTM A240 304 / UNS S30400 brushed stainless steel sheet is available in thicknesses from 0.8mm to 2.0mm, with standard and custom dimensions available according to project requirements.

Available Thicknesses

The 0.8–2.0mm thickness range provides options for both decorative applications and general stainless steel fabrication.

Common 304 Stainless Steel Sheet Dimensions

Commonly requested sheet dimensions include:

304 DP1 brushed stainless steel sheet is widely used in applications requiring corrosion resistance, durability, and a decorative brushed surface.

• Elevator Panels – Doors, cabin walls, and interior panels
• Architectural Cladding – Wall panels, column covers, and trim
• Interior Decoration – Decorative panels, partitions, and ceilings
• Kitchen Equipment – Cabinets, work surfaces, and equipment panels
• Furniture – Tables, cabinets, counters, and decorative components
• Retail Fixtures – Display panels, shelves, and commercial interiors
• Industrial Equipment – Equipment covers, machine panels, and enclosures

304 brushed stainless steel sheet and 304 2B stainless steel sheet are both commonly supplied as ASTM A240 Grade 304 / UNS S30400. The main difference is the surface finish, which affects appearance, reflectivity, and typical applications.

Key Difference: Both are 304 / UNS S30400 stainless steel, but the surface finish is different. 304 brushed stainless steel sheet has a directional decorative grain, while 304 2B stainless steel sheet has a smooth mill finish.

ASTM A240 304 / UNS S30400 Material

Our 304 brushed stainless steel sheet is supplied to the specified ASTM A240 Grade 304 / UNS S30400 requirements. Material documentation, including chemical composition and mechanical properties, can be provided according to the order and applicable specification.

0.8–2.0mm Thickness Options

We supply 304 brushed stainless steel sheet in 0.8–2.0mm thicknesses, suitable for different decorative and fabrication requirements.

Customers can select the thickness according to panel dimensions, forming requirements, rigidity, installation method, and application conditions.

Surface Protection for Export Transportation

The brushed surface is protected during handling and transportation to help minimize scratches and surface damage. PVC protective film can be supplied when required, particularly for decorative and architectural applications.

1. What is 304 DP1 brushed stainless steel sheet?

304 DP1 brushed stainless steel sheet is an ASTM A240 Grade 304 / UNS S30400 stainless steel sheet processed with a directional brushed surface. It combines the corrosion resistance and fabrication properties of 304 stainless steel with a decorative linear surface appearance.

2. What standard does your 304 brushed stainless steel sheet meet?

Our material can be supplied to ASTM A240 304 / UNS S30400 requirements. Other standards or customer-specific specifications can be discussed when placing an order.

3. What thicknesses are available for 304 DP1 brushed stainless steel sheet?

Our standard thickness range for this product is 0.8–2.0mm. Common thicknesses include 0.8mm, 1.0mm, 1.2mm, 1.5mm, and 2.0mm. Custom thickness requirements can be evaluated according to the order.

4. What sizes are available?

We can supply standard and custom-size 304 stainless steel sheets. Width and length can be specified according to your project requirements. Cut-to-size service is also available.

5. Is DP1 the same as No.4 stainless steel finish?

Not necessarily. Both surfaces can have a directional brushed appearance, but DP1 and No.4 should not automatically be considered identical finishes. DP1 may be a supplier- or project-specific designation. For appearance-critical projects, the required surface should be confirmed by specification or an approved sample.

6. Can you provide a specific brushing direction?

Yes. The required brushing or grain direction can be specified for applications where the visual orientation of the stainless steel sheet is important.

7. Can the 304 DP1 brushed sheet be supplied with PVC film?

Yes. PVC protective film can be supplied to help protect the brushed surface from scratches and handling marks during processing, transportation, and installation.

8. Can you provide cut-to-size 304 brushed stainless steel sheet?

Yes. We can provide cut-to-size 304 brushed stainless steel sheet according to customer dimensions and processing requirements. Please provide the required thickness, width, length, quantity, and cutting details when requesting a quotation.