316L SS or Ti Grade 2

SS / Ti Porous Plates

Sintered porous plates and sheets in 316L SS or Ti Grade 2. Flat format for sparger plates, electrode substrates, flow distribution, and filter media blanks.

0.22–100 µmFilter rating
600×400 mmMax Ti plate size
0.5–20 mmThickness range (Ti)
SS & TiMaterial options
Porous Components

SS / Ti Porous Plates

Sintered porous plates in 316L stainless steel or Grade 2 titanium, supplied as flat cut-to-size blanks or precision-machined to customer drawings. Same material and pore size range as the tubular porous components.
Material
316L SS or Grade 2 Titanium
Filter rating
0.22 – 100 µm
Max plate size
600 × 400 mm (Ti); 300 × 300 mm (SS)
Thickness
0.5 – 20 mm (Ti); 0.5 – 10 mm (SS)
Porosity
30 – 45%
Custom machining
Yes — waterjet / wire-EDM

Titanium plates up to 600 × 400 mm; SS plates up to 300 × 300 mm; thickness 0.5–20 mm (Ti) or 0.5–10 mm (SS). Plates can be waterjet cut or wire-EDM cut to precise shapes — round, rectangular, or irregular — with hole patterns, slots, or custom profiles machined after sintering.

For PEM electrolyzer applications, titanium porous plates serve as current collector and gas diffusion layer simultaneously. Porosity (30–45%) and pore size are specified to the individual stack design, and surface finish (Ra) is measured and certified for each batch. The sintered structure resists hydrogen embrittlement under cathodic charging, and the as-sintered surface is smooth enough for low-resistance electrical contact without additional polishing.

For electrocatalysis research, plates are available with a ruthenium-iridium oxide (Ru-Ir, MMO) coating — typically 8–12 µm on a 100 × 100 mm format — for bifunctional oxygen and hydrogen evolution catalyst studies in PEM electrolyzer and fuel cell development.

Technical Specifications

SS / Ti Porous Plates — Full Specification

Properties & Performance
Material
316L SS; Ti Grade 2
Filter rating
0.22 – 100 µm
Porosity
30 – 45%
Max temperature
400 °C (not recommended above)
Max pressure
≈ 0.6 MPa typical (thickness-dependent)
Dimensions & Configuration
Max plate (Ti)
600 × 400 mm
Max plate (SS)
300 × 300 mm
Thickness (Ti)
0.5 – 20 mm
Thickness (SS)
0.5 – 10 mm
Cutting methods
Waterjet, wire-EDM, standard saw
Custom dims
Yes — to drawing
Standard
GB/T 6886-2008 (SS) / GB/T 6887-2007 (Ti)
Catalyst coating
Ru-Ir oxide (MMO), 8–12 µm, on Ti plates for PEM research electrodes
Product Features

What Sets These Porous Plates Apart

Ti Plates for PEM Electrolyzer

Porous titanium plates for current collection and gas diffusion in PEM water electrolysis. Stable at anode potentials where carbon-based GDLs corrode, with inherent resistance to hydrogen embrittlement under cathodic charging.

Precision Cut to Drawing

Waterjet and wire-EDM cutting to complex shapes, with hole patterns, slots, and machined profiles. Tolerances to ±0.1 mm.

Large-Format Ti Plates

Titanium plates up to 600 × 400 mm — significantly larger than SS plates — available in single-piece format without joins.

Porosity and Surface Certified

Porosity measurement and Ra surface finish records provided for PEM-grade titanium plates. Lot traceability maintained throughout.

Weldable SS Plates

SS plates can be welded into housings and reactor assemblies using standard TIG/MIG procedures without special pre-treatment.

Ru-Ir (MMO) Coated Plates for Research

Titanium plates supplied with an 8–12 µm ruthenium-iridium oxide coating for electrocatalysis research — bifunctional oxygen and hydrogen evolution catalyst testing for PEM electrolyzer and fuel cell development.

Full Material Documentation

Mill test reports, chemical composition, and CoC available for every batch. Dimensions and porosity inspection records on request.

Applications

Where These Porous Plates Are Installed

PEM Electrolyzer Current Collector

Ti porous plate serves as current collector and gas diffusion layer in the anode compartment of PEM water electrolysis cells.

Custom cell dims · Ti Gr.2 · Ra certified

PEM Research Electrode Plate

Ti plate with a Ru-Ir oxide (MMO) coating for lab-scale electrolysis and fuel cell catalyst studies — bifunctional OER/HER testing on a standard 100 × 100 mm format.

100×100 mm · 8–12 µm Ru-Ir · Ti Gr.1/2

Reactor Sparger Plate

Porous plate installed at the base of a chemical reactor to distribute gas uniformly upward through a liquid column.

10–100 µm · SS or Ti · Custom size

Flow Distribution Plate

Porous plate in vessel internals to distribute liquid or gas flow evenly across a cross-section — in absorption, extraction, and reaction vessels.

Low ΔP · Custom pore size

Filter Media Blank

Flat sintered plates used as disc filter media in leaf filters, pressure nutsche filters, and other flat-bed filtration equipment.

0.22–100 µm · Cut to fit · SS or Ti

Pharmaceutical Vessel Internals

Porous distribution plates in pharmaceutical vessels and reactors. Electropolished SS or Ti for GMP service.

5–20 µm · EP option · CIP-rated

High-Pressure Distribution Elements

Porous plates for gas and liquid distribution in high-pressure chemical and petrochemical reactors.

Thick-wall · Wall-dependent · Custom alloy
Industry Applications

Industries Specifying SS/Ti Porous Plates

Send Us Your Plate Dimensions and Specification

Provide plate size, thickness, pore size, and any required machining. We will quote cut-to-size blanks or fully machined parts.

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