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Help CenterExpanded Metal Perforated Alternative 1.5mm Thick 3mm x 6mm Opening 304 SS Standard Compliant for Ventilation
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As a leading manufacturer from Anping Xinye Metal Wire Mesh Products Co., Ltd (Hengshui, Hebei, China), we are proud to present our Expanded Metal Perforated Alternative — a versatile and durable solution for ventilation applications. This 1.5mm thick sheet features a precise 3mm x 6mm opening pattern, crafted from premium 304 stainless steel to ensure long-lasting performance in demanding environments. Unlike traditional perforated metal, our expanded metal offers superior strength-to-weight ratio, ease of fabrication, and excellent airflow characteristics, making it the ideal choice for industrial ventilation, machine guards, and architectural grilles.
Our product is manufactured to meet rigorous industry standards, ensuring consistent quality and dimensional accuracy. Whether you need to improve air circulation in HVAC systems, protect equipment, or create decorative panels, this expanded metal delivers reliable performance. With our factory-direct pricing and extensive experience in wire mesh production since 1998, we guarantee both competitive costs and unmatched service.
Key Features & Technical Specifications
- Material: 304 Stainless Steel — excellent corrosion resistance, suitable for indoor and outdoor use.
- Thickness: 1.5mm (0.059 inch) — provides robust structural integrity while remaining formable.
- Opening Size: 3mm x 6mm (long way of diamond) — optimized for airflow and particle screening.
- Bonding Pattern: Expanded metal (no welded joints) — eliminates weak points, reduces weight.
- Surface Finish: Mill finish, with optional bright annealing or passivation available upon request.
- Customization: Sheets can be cut to specific dimensions, curved, or flattened.
- Applications: Ventilation panels, filter supports, speaker grilles, safety guards, walkway treads.
| Parameter | Value |
|---|---|
| Sheet Thickness (before expansion) | 1.5 mm |
| Strand Width | Approx. 1.0 mm |
| Long Way of Diamond (LWD) | 6 mm |
| Short Way of Diamond (SWD) | 3 mm |
| Open Area Percentage | Approx. 40–50% |
| Tensile Strength (min) | ≥ 520 MPa (304 SS typical) |
| Standard Sheet Size | 1000 x 2000 mm (customizable) |
Advantages for Your Ventilation Needs
- High Airflow Efficiency: The diamond-shaped openings allow free passage of air while blocking debris and insects. Compared to perforated metal with similar open area, expanded metal often provides less turbulence, reducing pressure drop in ventilation systems.
- Weight Reduction: Because the material is stretched rather than punched, expanded metal is typically 20–30% lighter than a perforated sheet of equal thickness and open area, saving on shipping and structural load.
- No Sharp Burrs: Our expansion process leaves smooth, rounded edges on the strands, making handling safer and reducing the risk of injury during installation.
- Enhanced Strength: The continuous, work-hardened strands distribute stress evenly, resulting in a panel that can withstand impact and vibration better than perforated alternatives.
- Customizable Finish: Need a bright, clean look? Request passivation or electropolishing. Prefer a matte surface? Mill finish is standard. Additional coatings (e.g., powder coating) are available for large orders.
- Easy Fabrication: Sheets can be cut, bent, welded, or fastened using standard metalworking tools, allowing quick integration into existing frames or ducts.
Our 304 stainless steel expanded metal is widely used in HVAC ventilation grilles, machinery enclosures, security screens, and architectural cladding. The 3mm x 6mm opening strikes an ideal balance between visibility, air passage, and protection. Whether you are a manufacturer of air handling units, a construction contractor, or a DIY enthusiast, this product offers the reliability and versatility you need.
Why Choose Anping Xinye?
With over 25 years of experience in the wire mesh industry, Anping Xinye Metal Wire Mesh Products Co., Ltd has established a strong reputation for quality and service. Our factory is located in the heart of China's metal mesh hub — Hengshui, Hebei — where we have access to premium raw materials and skilled craftsmanship. We supply thousands of tons of expanded metal annually to customers worldwide, including Europe, North America, and Southeast Asia.
We operate strict quality control processes: each batch of material is inspected for dimensional accuracy, material certification, and surface finish. Our production capacity allows us to fulfill both small custom orders and large container orders with consistent lead times. We also offer free sample requests for qualified buyers, so you can evaluate the product before committing to a large order.
By choosing our expanded metal alternative, you are not only getting a superior product but also a partner who values your business. We provide technical support, custom fabrication advice, and after-sales assistance. Contact us today to discuss your specific requirements — we can tailor the sheet size, packaging, and delivery schedule to match your project timeline.
Frequently Asked Questions (FAQ)
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Q: What is the difference between expanded metal and perforated metal?
A: Expanded metal is made by slitting and stretching a solid sheet, creating diamond-shaped openings without removing material. Perforated metal is punched with holes, which removes material. Expanded metal is generally lighter, stronger (due to work hardening), and has no sharp edges, while perforated metal can offer more precise hole patterns and sizes. -
Q: Can this product be used outdoors?
A: Yes, 304 stainless steel offers good corrosion resistance in most outdoor environments, including coastal areas with moderate salt exposure. For extremely corrosive conditions, we recommend 316 stainless steel (available upon request). -
Q: What are the standard sheet dimensions?
A: Our standard sheet size is 1000mm x 2000mm (approx. 3.3ft x 6.6ft). We can cut to custom sizes, such as 1200mm x 2400mm or 500mm x 1000mm, with minimal extra cost. Please specify your required dimensions when ordering. -
Q: Is the product certified to any standard?
A: Our expanded metal complies with industry standards for material and dimensional tolerances (e.g., ASTM F1267, GB/T 3003). Material certifications (mill test reports) are available upon request. We do not claim specific third-party certifications unless explicitly confirmed. -
Q: How do I cut or shape the sheet?
A: The sheet can be cut with a grinder, plasma cutter, or shears. For bending, use a brake press or simply clamp and hammer over a straight edge. Welding is possible using standard 304 stainless steel welding techniques. Always wear eye protection when cutting. -
Q: What is the delivery time?
A: For small orders (e.g., 10 sheets), we typically ship within 7–10 working days. For container orders (20ft or 40ft), lead time is 15–25 working days, depending on the quantity and customization. Express shipping is available for urgent samples. -
Q: Can I get a sample before purchasing large quantities?
A: Yes, we offer free samples (A4 size or 200mm x 200mm) for potential buyers. The sample is free of charge, but you will need to cover the shipping cost. Contact us with your details to request a sample. -
Q: Is the product available in different colors?
A: The standard mill finish is silver-gray. If you require a specific color (e.g., black, white, or custom RAL), we can apply powder coating or paint for larger orders. Please note that this will add to the cost and lead time.
Ready to place your order or have more questions? Our sales team at Anping Xinye is ready to assist. We take pride in delivering high-quality expanded metal mesh that meets your exact specifications. Contact us now for a quotation or to discuss your project.
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