Stainless Steel Perforated Metal Overview
Stainless steel perforated metal is produced by punching controlled holes or patterns into stainless steel sheet.
It combines the corrosion resistance and durability of stainless steel with controlled airflow, drainage, visibility and open area, making it suitable for filtration, screening, equipment protection and architectural applications.
We manufacture stainless steel perforated sheet metal with round, square, slotted and custom hole patterns. Hole size, spacing, sheet thickness and dimensions can be manufactured according to your drawings or project specifications.
Hole Patterns
Different perforation patterns provide different combinations of open area, airflow, strength and appearance.
Round Hole
The most widely used perforation pattern for screening, ventilation, filtration and general industrial applications.
Square Hole
Provides a clean geometric appearance and high open area for architectural and screening applications.
Hexagonal Hole
Provides high open area with a distinctive appearance for ventilation and architectural projects.
Micro Perforation
Small precision holes for applications requiring controlled airflow, filtration or acoustic performance.
Custom Patterns
Custom hole shapes, spacing and layouts can be produced according to drawings.
Stainless Steel Grades
The correct stainless steel grade depends on the operating environment, corrosion exposure and fabrication requirements.
| Grade | Characteristics | Typical Use |
|---|---|---|
| 304 | Good corrosion resistance and general-purpose performance | Industrial, architectural and indoor/outdoor applications |
| 304L | Lower carbon content with good weldability | Fabricated and welded components |
| 316 | Higher resistance to chlorides and corrosive environments | Coastal, processing and demanding outdoor applications |
| 316L | Corrosion resistance with lower carbon content | Welded equipment and processing applications |
| 430 | Economical ferritic stainless steel | Indoor and less aggressive environments |
Other stainless steel grades can be evaluated according to project requirements.
Stainless Steel Perforated Metal Applications
Filtration & Separation
Screening & Sieving
Food Processing
Machine Guards & Safety Barriers
Facades & Cladding
Ceilings & Acoustic Panels
Stainless Steel Perforated Metal Specifications
We manufacture standard and custom perforated stainless steel sheets according to project requirements.
| Specification | Available Options |
|---|---|
| Material | 304, 304L, 316, 316L, 430 and others |
| Hole Pattern | Round, square, slotted, hexagonal and custom |
| Hole Size | Custom |
| Hole Spacing | Custom |
| Sheet Thickness | Custom |
| Open Area | Designed according to hole size and spacing |
| Sheet Size | Standard and custom dimensions |
| Hole Arrangement | Straight, staggered or custom |
| Edge / Margin | Standard or custom margins |
| Fabrication | Cutting, bending, forming and welding |
For quotation, send us your material grade, thickness, hole size, spacing, sheet dimensions and quantity.
Custom Fabrication & Quality Control
Custom fabrication and inspection help ensure each perforated stainless steel panel meets your project requirements.
Precision Cutting
Sheets cut to specified dimensions.
Bending & Forming
Custom forming for panels and fabricated components.
Welding & Framing
Welded frames and assemblies available from drawings.
Hole Inspection
Hole size, spacing and pattern consistency checked during production.
Dimension Check
Sheet size and fabrication dimensions verified before packing.
Why Choose LH as Your Stainless Steel Perforated Metal Supplier?
Multiple Grades
304, 316, 316L and more.
Custom Perforation
Hole size, spacing and open area made to order.
Fabrication Support
Cutting, forming, welding and framing available.
Reliable Supply
Support for OEM, project and bulk orders.
304 vs. 316 Stainless Steel Perforated Metal
| Comparison | 304 Stainless Steel | 316 Stainless Steel |
|---|---|---|
| Corrosion Resistance | Good corrosion resistance | Higher corrosion resistance |
| Chloride Resistance | Moderate resistance to chlorides | Better resistance to chlorides |
| Coastal / Marine Use | Suitable for mild environments | Better for coastal and marine use |
| Chemical Environments | Suitable for general use | Better for corrosive chemical environments |
| Material Cost | Lower material cost | Higher material cost |
Choose 304 for most general industrial, architectural and outdoor applications.
Choose 316 when the perforated metal is exposed to salt, chlorides, chemicals or more aggressive environments.
Case Study : 316 Stainless Steel Perforated Panels for Processing Equipment
A processing equipment enclosure required corrosion-resistant panels that could provide ventilation while protecting internal components.
316 stainless steel perforated metal was selected to provide:
- Good corrosion resistance
- Controlled airflow
- Equipment protection
- Consistent perforation
- Easy integration into fabricated frames
The panels can be produced with the required hole diameter, spacing, sheet dimensions and mounting configuration before shipment.
Frequently Asked Questions
304 and 316 are the most commonly used grades. 304L and 316L are also available for projects requiring additional welding or fabrication. Other stainless steel grades can be evaluated according to project requirements.
Common options include round, square, slotted and hexagonal holes. Custom hole shapes and perforation layouts can also be produced according to drawings.
304 provides good corrosion resistance for most general applications. 316 provides better resistance to salt, chlorides and aggressive environments and is often preferred for coastal and processing applications.
Yes. Open area can be adjusted by changing the hole size, spacing and perforation arrangement.
We can review the required airflow, visibility or screening performance before production.
Yes. Sheets can be cut to custom dimensions and can also be bent, formed or welded according to your drawings.
Yes. Perforated areas, unperforated margins and mounting zones can be designed according to your drawing or installation requirements.
Yes. Stainless steel is commonly used outdoors because of its corrosion resistance.
304 is suitable for many general outdoor applications, while 316 is generally preferred for coastal or more corrosive environments.
Please provide:
- Stainless steel grade
- Sheet thickness
- Hole shape
- Hole size
- Hole spacing
- Sheet dimensions
- Quantity
- Fabrication requirements
A drawing is recommended for custom patterns or fabricated panels.
Related Products
Round Hole Perforated Metal
Versatile perforated sheets for screening, ventilation and filtration.
Square Hole Perforated Metal
Geometric perforation for industrial and architectural applications.
Slotted Perforated Metal
Directional openings for screening, airflow and drainage.
Stainless Steel Expanded Metal
Continuous stainless mesh for protection and architectural applications.
Stainless Steel Wire Mesh
Woven and welded mesh for screening and filtration.
Stainless Steel Bar Grating
Corrosion-resistant grating for flooring and access applications.