Porous Metal Components

Porous Metal Components

Precision Sintered Metal Parts for Filtration, Flow Control and Gas Diffusion

CMI porous metal components are manufactured using advanced powder metallurgy and high-temperature sintering processes, forming a highly uniform, rigid, and precisely controlled porous structure.

These components are designed for demanding applications including filtration, flow restriction, gas diffusion, sparging, sampling, and sensor protection, where consistent permeability and mechanical stability are critical.

With flexible geometry and precise pore control, CMI porous metal parts are widely used as direct replacements for MOTT® porous metal components, as well as for OEM custom-engineered solutions.

Key Features

• Precise pore size control from 0.3 to 100 μm
• Uniform permeability and repeatable flow performance
• High temperature resistance up to 600°C (depending on alloy)
• Excellent resistance to pressure shock and vibration
• Strong corrosion resistance across aggressive chemical environments
• High dimensional accuracy with tight tolerances (±0.15 mm)
• Suitable for analytical, instrumentation, and precision filtration applications
• Cleanable via backflush, ultrasonic, or solvent cleaning

Available Materials

• Stainless Steel: 316L / 304L / 310S / 904L
• Titanium: Grade 1 / Grade 2
• Nickel & Monel: Nickel, Monel 400
• Hastelloy: C-22 / C-276 / XB-2
• Inconel: 600 / 625 / 800

Shapes & Dimensions

Porous Metal Cups / Thimbles

• OD: 4 – 450 mm
• Length: up to 1600 mm
• Filtration Rating: 0.3 – 100 μm
• Dimensional tolerance: ±0.15 mm
• Can be welded to metal or polymer fittings

Porous Discs / Frits

• OD: up to 600 mm
• Thickness: 0.1 – 3 mm
• Single-layer or multi-layer construction

Porous Plates / Sheets

• Max size: 420 mm
• Thickness: 0.1 – 3 mm

Porous Tubes

• Custom outer diameters
• Length up to 1600 mm
• Wall thickness per specification

Custom Shapes

• Cones, rings, cylinders
• Assemblies with fittings or connectors
• Flame arrestors, sparger tips
• OEM geometries based on drawings

Typical Applications

Chemical & Petrochemical

• Corrosive fluid filtration
• Catalyst retention and recovery
• Steam and hot gas filtration
• Solvent and polymer processing

Instrumentation & Analytical Systems

• Chromatography frits
• HPLC / GC inlet protection
• Flow restrictors and pressure stabilizers
• Precision gas and liquid sampling

Gas–Liquid Contacting

• Sparging and aeration
• Hydrogenation and oxidation processes
• Mixing and diffusion applications

General Industrial

• Sensor protection
• Pressure damping components
• Air and gas filtration

Customization Options

• Tailored pore size distribution and permeability
• Custom OD / ID / thickness
• Precision flow-rate calibration
• Welding to specialized fittings
• Multi-layer structures
• Reverse engineering of existing components
• OEM / ODM production

Why Choose CMI

• Advanced sintered metal powder manufacturing capability
• Strong engineering support for custom applications
• Consistent quality with tight dimensional control
• Proven replacement for MOTT® porous metal components
• Fast prototyping and reliable mass production