Inside the Making of Sinter Titanium Disc: field notes, specs, and what actually matters

If you’ve ever had a filter skid choked by fines or a hydrogen line that hated pressure drops, you already know why Sinter Titanium Disc has become the quiet favorite across battery, chemical, pharma, and even offshore teams. It’s tough, cleanable, and—when built from precision titanium fiber—surprisingly consistent. I’ve toured a couple of lines in North China lately; the shift from powder-only media to fiber-based structures is real. Customers say the backwash interval alone pays for the premium.

What it is (and why fiber matters)

At its core, a Sinter Titanium Disc is a porous media formed by sintering titanium—often Grade 1 or 2—into a rigid, cleanable, corrosion-resistant disc. This manufacturer starts with Titanium Fiber (drawn wire chopped to controlled aspect ratios) and consolidates it into a felt preform. After vacuum sintering, the matrix fuses at contact points, giving a 3D labyrinth that balances flow and filtration. It’s like a stainless felt, but lighter and more chemically inert.

Process flow (short version)

• Materials: CP Titanium Grade 1/2 fiber (per ASTM F67/F1341 equivalents); optional Ti alloy on request.
• Forming: wet or dry lay-up to achieve target basis weight and porosity.
• Sintering: high-vacuum furnace; process temp ≈ 800–1000°C, hold time tuned to bond density.
• Machining: waterjet or EDM to final OD/ID; edge conditioning.
• Cleaning: ultrasonic + vacuum bake to reduce hydrocarbons.
• Testing: bubble-point and mean-flow pore per ASTM F316 / ISO 4003; permeability per ISO 4022; mechanicals and dimensional checks.

Typical specifications

Parameter	Spec (typical)	Notes
Material	CP Ti Gr1 / Gr2	Low trace elements; medical/food variants on request
Pore size (MFP)	0.5–60 μm	Per ASTM F316; real-world use may vary
Thickness	0.5–5.0 mm	Custom laminates for >5 mm
Porosity	35–60%	Higher porosity ≈ higher flow, lower strength
Permeability	1–20 ×10⁻¹² m²	ISO 4022 air @ ambient
Compressive strength	≥ 10–60 MPa	Function of density and thickness
Service life	≈ 3–8 years	Backwash/steam CIP extend life

Where teams use it

• Battery: solvent filtration, cathode slurry polishing, dry-room gas diffusion.
• Chemical & refinery: sparging, catalyst retention, hydrogen service (Ti’s chloride resistance helps).
• Pharma & biotech: vent filters, gas sterilization lines; ask for ISO 13485 options.
• Marine/offshore: seawater degassing, anti-fouling aeration plates.

Test data snapshot (shop floor)

A 1.5 mm, 10 μm-rated Sinter Titanium Disc showed bubble-point at 0.42 MPa (IPA), mean-flow pore 11.3 μm, and air permeability 6.8×10⁻¹² m². After 50 steam cycles (121°C, 30 min), performance drift was

Vendor comparison (what buyers actually look at)

Vendor	Core Strength	Lead Time	Certs	Price
China OEM (fiber-based)	Custom pore control; strong R&D	2–4 wks	ISO 9001; ISO 13485 optional	$$
EU supplier (powder-based)	Tight tolerances; strong documentation	4–8 wks	ISO 9001, PED familiarity	$$$
Marketplace reseller	Quick off-the-shelf	1–2 wks	Varies	$–$$

Customization and real-world feedback

Custom OD/ID, stepped faces, multi-layer laminates, and diffusion-bonded stacks are common. Many customers say “just make it 5% more open”—which usually means bumping porosity one notch without killing strength. To be honest, a short DFMEA with process gas data saves weeks later.

Mini case studies

• Battery plant (SEA): swapped 316L felt for Sinter Titanium Disc, doubled backwash intervals; VOC carryover down ≈ 18%.
• API line (EU): validated Ti discs with steam-in-place; no extractables above LOQ, cycle life > 200 SIP runs.
• Chlor-alkali (ME): Ti discs resisted chloride pitting; pressure drop stable after 3 months of daily pulsed backflush.

Compliance, standards, and paperwork

Look for ISO 9001, material certs (EN 10204 3.1), and test reports to ASTM F316/ISO 4003 and ISO 4022. Medical or food-contact builds may reference ASTM F67 and ISO 13485. Factory address for audits: Rm. C-1301, Hyde Park Plaza, No. 66 Yuhua W. Road, Shijiazhuang, 050056 China.

Bottom line

If you need cleanable, corrosion-proof media with predictable flow, a fiber-based Sinter Titanium Disc is hard to beat. Start by locking the target pore rating and cleaning regime, then tune porosity and thickness. The rest falls into place.

Authoritative citations

1. ASTM F316 – Standard Test Methods for Pore Size Characteristics of Membrane Filters by Bubble Point and Mean Flow Pore Test.
2. ISO 4022 – Permeable sintered metal materials — Determination of fluid permeability.
3. ISO 4003 – Permeable sintered metal materials — Determination of bubble test pore size.
4. ASTM F67 – Standard Specification for Unalloyed Titanium for Surgical Implant Applications.