304 Round Hole Perforated Stainless Steel Sheet

If you are looking for a stainless steel square perforated sheet that is suitable for food processing, workshop ventilation, equipment protection and other scenarios and is both corrosion-resistant, 304 Round Hole Perforated Stainless Steel Sheet will be one of your choices. SS 304 Perforated Sheet has high strength, strong load-bearing capacity, and uniform pore size, ensuring the stability and beauty of the structure.

ss 304 hole sheet

GNEE supplies ASTM A240 304 round hole perforated stainless steel sheets with custom hole sizes, thicknesses and sheet dimensions. Competitive factory price and worldwide delivery.

304 stainless steel sheet metal with holes contains 18% chromium + 8% nickel, has strong resistance to moisture, weak acid and alkali, is not easy to rust in food processing, workshops and other scenes, and has a service life of more than 3 times that of carbon steel screens, reducing the trouble of replacement, and supports 0.5-50mm aperture customization (error ≤0.05mm), adjustable opening rate, suitable for filtering (2mm round hole interception rate 99%), ventilation (10mm round hole air volume increased by 20%), protection (15mm round hole impact resistance) and other scenes.

ss 304 sheet with holes is 30% lower in price than 316 perforated sheet, with lower comprehensive cost, and more budget-saving for bulk purchase. It meets FDA food contact standards and comes with material test reports. It is suitable for scenes with high hygiene requirements such as food and medical treatment, and is more reliable to use.

All of our perforated metal products are available in a variety of thicknesses, hole sizes, spacing and shapes. Some of our standard shapes include; round, hexagonal, square and round end slotted holes. And we offer customization to meet your exact requirements and specifications.

Click to Customize 304 Stainless Steel Perforated Sheets

Applications of 304 Round Hole Perforated Metal

Architectural curtain walls and decorative partitions

Protective covers for machinery and equipment

Air conditioning and ventilation system filters

Food processing and pharmaceutical equipment

Filtration systems in chemical and environmental industries

 

304 Round Hole Perforated Sheet Specifications

Specification Item	Description
Material Grade	304 Austenitic Stainless Steel
Sheet Thickness	0.5 mm – 6.0 mm (customizable)
Sheet Size	1000 mm × 2000 mm, 1219 mm × 2438 mm, or custom sizes
Hole Shape	Round
Hole Diameter	1 mm – 50 mm (customizable)
Hole Pitch (Center-to-Center)	Typically 2 × hole diameter or customized
Open Area	20% – 60% (depends on hole diameter and pitch)
Surface Finish	2B, BA, No.4 Brushed, or as per customer request
Manufacturing Process	CNC punching, hydraulic punching, or laser cutting
Standards Compliance	ASTM A480, JIS G4305, EN 10088
Typical Applications	Filtration, ventilation, architectural decoration, machinery guards

 

Specifications for 304 Stainless Steel Perforated Sheet (Round Holes)

The specifications of perforated sheets are typically defined by the hole diameter (D), hole pitch (P/T, or center-to-center distance), and sheet thickness (T). The most common arrangement is the 60° staggered pattern (staggered/hexagonal layout).

 

Aperture (mm)	Center-to-center distance (mm)	Common sheet thickness (mm)	Open area ratio (reference)
0.5	1.2	0.3 - 0.5	15.7%
1.0	2.0	0.5 - 1.0	22.6%
2.0	3.5	0.8 - 2.0	29.6%
3.0	5.0	1.0 - 3.0	32.6%
5.0	8.0	1.0 - 4.0	35.4%
8.0	12.0	1.5 - 5.0	40.2%
10.0	15.0	2.0 - 6.0	40.2%
20.0	30.0	3.0 - 8.0	40.2%

 

304 vs 316 Perforated Stainless Steel plate

When choosing between 304 and 316 perforated stainless steel, the primary difference is corrosion resistance. 304 is the industry standard for general, indoor, or non-coastal use. Grade 316 contains molybdenum, making it a "marine grade" that resists saltwater, chlorine, and industrial acids.

 

sS 304 perforated sheet price

The price of a 304 Stainless Steel (SS) perforated sheet generally ranges from $20 for small precut pieces up to $250+ for full-sized industrial sheets (36" × 48"). Cost is primarily determined by the sheet thickness (gauge), dimensions, and perforation pattern (hole size and spacing).

Contact now

Why Buy From GNEE?

GNEE holds ISO 9001 management system certification and welcomes on-site inspections by third-party agencies such as SGS and BV. We provide Material Test Certificates (MTC) to ensure every sheet meets the rigorous standards of the international market.

We offer a wide range of OEM perforation patterns (including square, slotted, hexagonal, and decorative designs). Custom Cutting: Equipped with advanced laser cutting, plasma cutting, and precision shearing machinery, we can cut materials to your specific dimensions based on your drawings, thereby reducing your secondary processing costs. 

High quality packaging and shipping

The packaging method is usually pallet packaging with film covering the outside to protect the goods; in addition, wooden box packaging is also available; for other special packaging requirements, please contact GNEE for customization. 

FAQ

What is the most common hole pattern for 304 perforated stainless steel?

The most common hole pattern for 304 perforated stainless steel is round holes arranged in a 60° staggered pattern; widely regarded as the industry standard, it offers excellent structural integrity, cost-effectiveness, and a high open-area ratio suitable for airflow or filtration applications.

Is 304 perforated sheet suitable for outdoor use?

Yes, 304 stainless steel perforated sheet is highly suitable for outdoor use. It contains high levels of chromium and nickel, providing excellent resistance to rust, moisture, and everyday weathering.

What is the open area of round hole perforated sheet?

 Open area is the percentage of a sheet's total surface area that is occupied by punched holes rather than solid material. For example, a 40% open area means 40% of the panel consists of holes, while 60% is solid metal. It primarily dictates the panel's ventilation, light transmission, and acoustic performance.

Hot Tags: 304 round hole perforated stainless steel sheet, China 304 round hole perforated stainless steel sheet manufacturers, suppliers, factory, Stainless Steel Bright Annealed Plate, 904L Stainless Steel Plate, Stainless Steel Brushed Plate, stainless steel plate, Stainless Steel Mirror Plate, 316 Stainless Steel Sheets