Noise-Reducing plate stainless steel | Acoustic Grid Plates for Urban Rail

Noise-Reducing Plate Stainless Steel | Acoustic Grid Plates for Urban Rail
Engineered for Urban Acoustic Harmony and Durability

Product Specifications

Key Properties & Manufacturing Process

1. Tensile Strength & Bend Resistance
Our stainless steel plates exhibit a minimum tensile strength of 515 MPa (304 grade) and 620 MPa (316L grade), ensuring structural integrity under dynamic loads from rail vibrations. The bend strength is optimized through cold-rolling and heat treatment, achieving a bend radius ≤2× thickness without cracking.

2. Identification & Marking
Each plate is laser-etched with a unique identifier, including:

• Material grade (e.g., SS304, SS316L)
• Batch number
• Compliance marks (ISO 3506, ASTM A240)

3. Weight Calculation Formula
$\text{Weight (kg)}=\text{Thickness (mm)}\times \text{Area (m²)}\times 7.93(\text{Density of SS in g/cm³})$
Example: A 3 mm thick plate (1.2 m × 2.4 m) weighs $3\times 2.88\times 7.93=68.6\text{kg}$.

4. Corrosion Resistance & Causes of Rust
Stainless steel resists rust due to its chromium oxide layer (≥10.5% Cr) . However, localized corrosion may occur in:

• Chloride-rich environments (e.g., coastal areas): 316L grade with 2–3% molybdenum is recommended.
• Mechanical damage: Scratches or improper cleaning disrupt the passive layer, allowing oxidation.

5. Acoustic Performance
The perforated grid design disrupts sound waves through diffraction and absorption, achieving insertion loss up to 22 dBA in field tests, comparable to T-shaped barriers. For high-speed rail applications (>200 km/h), our honeycomb phononic crystal reinforcement (inspired by ) minimizes low-frequency noise propagation.

Advanced Features

• Can you plate stainless steel?
  Yes! Our optional ion-plated gold or silver coatings enhance aesthetic appeal while maintaining corrosion resistance. Unlike conventional gold-plated connectors (prone to wear),

   our ion-plating process bonds metals at the atomic level, ensuring adhesion strength >15 MPa.

   

• Difference between stainless steel and gold plated

  Aspect	Stainless Steel	Gold-Plated
  Durability	Inherently corrosion-resistant	Surface coating wears over time
  Cost	Lower lifecycle cost	High initial cost
  Maintenance	Minimal (periodic cleaning)	Requires re-plating

• Does ion-plated stainless steel tarnish?
  No. Ion plating creates a non-porous layer resistant to oxidation and tarnishing, even in humid conditions.

Why Choose Our Stainless Steel Plates?

1. Proven Acoustic Efficiency: Validated by CFD simulations and real-world deployments in EU-regulated zones .
2. Smart Material Integration: Optional IoT-enabled panels (compatible with ASEAN smart city projects ) monitor noise levels and structural health.
3. Sustainability: 30% recycled content, aligning with circular economy goals .
4. Custom Solutions: Tailored geometries (T-shape, honeycomb ) for site-specific noise challenges.