0.2mm Thickness SS316L Perforated Sheet For Fine Liquid Filtration

TOPTITECH's 0.2mm Thickness SS316L Perforated Sheet for Fine Liquid Filtration is manufactured using photochemical etching. This precision process selectively removes material to create the specified 0.3mm apertures, achieving exacting hole geometry with tolerances typically within ±0.01mm. The etching technique produces perfectly smooth, burr-free hole walls and preserves the SS316L substrate's full metallurgical integrity. This absence of mechanical stress or work hardening ensures the material maintains its optimal corrosion resistance, characterized by a Pitting Resistance Equivalent Number (PREN) exceeding 28, and guarantees uniform mechanical properties across the entire sheet.

0.2mm thickness

0.3mm pore size

This construction directly translates to superior filtration performance. The 0.2mm Thickness SS316L Perforated Sheet for Fine Liquid Filtration provides absolute particle retention based on its precise aperture size. The hydrodynamically efficient, smooth apertures promote laminar flow, reduce pressure drop, and minimize clogging. Combined with the inherent chemical resistance of SS316L, this sheet offers reliable, long-term service in aggressive media for critical applications including chemical process filtration, precision fuel and coolant systems, and high-purity food or pharmaceutical processing. Its cleanability and structural stability support repeated use in demanding industrial environments.

• Material: SS316L
• Size: 650x410mm
• Thickness: 0.2mm
• Pore size: 0.3mm

Precision Aperture Geometry

 

The photochemical etching process creates exact 0.3mm apertures, ensuring absolute and consistent particle retention. This eliminates bypass and guarantees reliable filtration cutoff for processes requiring separation in the 300-micron range.

Burr-Free, Hydrodynamically Smooth Hole Walls

 

Unlike mechanically punched sheets, etching produces apertures with no microburrs or deformed edges. This smooth surface finish minimizes fluid turbulence, reduces pressure drop, and significantly lowers the risk of particle adhesion and media blinding.

Maintained Metallurgical Integrity and Maximum Corrosion Resistance

 

The non-contact etching process induces zero work hardening or residual stress, preserving the SS316L substrate's full annealed ductility. The material retains its optimal Pitting Resistance Equivalent Number (PREN > 28), offering superior resistance to chlorides, acids, and caustics compared to work-hardened alternatives.

Exceptional Cleanability and Sterilization Capability

 

The combination of a pristine 2B finish, smooth aperture walls, and the inert SS316L surface allows for thorough cleaning using CIP (Clean-in-Place) protocols. The sheet withstands repeated sterilization through autoclaving or chemical sanitizers without degradation.

High Open Area with Structural Stability

 

Precise etching allows for optimized hole patterns that maximize open area for flow while the 0.2mm thickness and unaltered material temper provide necessary rigidity. This balance ensures structural integrity in vibrating filter assemblies or under differential pressure without risk of fatigue failure

High-Purity Chemical and Solvent Processing

This sheet serves as a critical support mesh or direct filter in the production of ultra-pure acids, photoresists, and semiconductor-grade solvents. The burr-free 0.3mm apertures and electropolished SS316L surface prevent contamination from metal ions or particulate shedding, essential for maintaining fluid purity in closed-loop systems and meeting stringent industry standards.

Precision Fuel, Hydraulic, and Lubrication Systems

The component provides reliable inline filtration for aviation fuel, high-performance hydraulic fluids, and synthetic lubricants. Its consistent aperture geometry ensures stable particle retention, while its PREN > 28 corrosion resistance guarantees long-term integrity against biocontaminants, water ingress, and additive packages without risk of filter media degradation.

Specialized Industrial Membrane Support and Protection

The sheet acts as an ideal protective layer and support substrate for delicate polymer or ceramic membranes in cross-flow filtration and reverse osmosis systems. Its precise open area and rigid yet thin profile provide optimal backing with minimal pressure loss, while its chemical compatibility protects membranes from upstream debris and mechanical damage.

Laboratory and Analytical Instrumentation Fluid Management

In critical laboratory equipment, the component functions within autosampler lines, reagent filters, and chromatograph protection modules. The photochemically etched geometry ensures repeatable flow characteristics, and the inherent material stability prevents interaction with aggressive organic solvents or buffers, ensuring analytical accuracy and instrument longevity.

A fundamental rule in perforated sheet design dictates that aperture diameter must exceed material thickness. This engineering principle stems from interrelated constraints in metal stamping mechanics, tooling physics, and material behavior. For a 0.2mm thick SS316L sheet, specifying an aperture ≤0.2mm compromises product integrity and manufacturing feasibility.

 Mechanical and Tooling Limitations
The punch pin's aspect ratio becomes critical when aperture diameter approaches material thickness. A pin diameter matching the 0.2mm sheet thickness operates at a 1:1 ratio, creating unsustainable shear stress during stamping. This forces excessive lateral deflection, leading to rapid pin fracture and permanent die damage. Simultaneously, maintaining the required punch-to-die clearance of 5-8% of material thickness becomes impossible at this scale, resulting in accelerated tool wear and inconsistent aperture quality.

 Material Deformation and Structural Integrity
Shearing a 0.2mm aperture in 0.2mm thick SS316L induces severe plastic deformation rather than clean material separation. The concentrated stress exceeds the material's ultimate tensile strength locally, generating a torn edge profile with micro-fractures. This compromised edge structure becomes a focal point for crack propagation under load and significantly degrades the alloy's corrosion resistance by disrupting its passive oxide layer.

 Functional Performance Compromise
Apertures with diameter-to-thickness ratios ≤1 create dysfunctional flow paths. In filtration applications, the extended channel length generates prohibitive pressure drop and promotes rapid particulate blinding. The perforated pattern also critically weakens the sheet's bending stiffness and flatness, making it unsuitable for any pressurized or vibratory operating environment.

Industry best practice maintains a minimum aperture-to-thickness ratio of 1.2:1, with 1.5:1 being optimal for precision applications. The specified 0.3mm aperture in 0.2mm thick SS316L achieves this ideal balance, enabling clean production, reliable performance, and extended service life in demanding fine filtration systems.

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Phone: +86 18992731201

Email: zhangjixia@bjygti.com

Fax: 0917-3873009

Address: No. 195, Gaoxin Avenue, High-tech Development Zone, Baoji City, Shaanxi, China

Whatsapp: +86 18992731201

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