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01
Tantalum Rings & Flanges
Custom rings and flanges for chemical, vacuum and sealing assemblies, including bolt holes, sealing faces and non-standard profiles.
Turning · Drilling · Grinding
Custom Tantalum Machining
Custom Tantalum Machined Parts
Custom components manufactured from customer drawings in pure tantalum and tantalum-tungsten alloys for chemical processing, vacuum systems, semiconductor equipment and high-temperature vacuum applications.
PDF / STEP drawing reviewPrototype & small batchesMaterial certificates available
Materials
Pure Ta · Ta-2.5W · Ta-10W
Order types
Prototype · Small batch · Repeat
Drawing formats
PDF · STEP/STP · DWG · DXF
Quality documents
MTC · Dimensional reports
Overview
Tantalum Parts Made to Your Drawing
Aulister supplies custom tantalum machined parts based on customer drawings, PDF files, STEP models or approved samples. We support prototype quantities, small batches and repeat orders.
Material grade, dimensions, tolerances, surface condition, inspection requirements and service conditions are reviewed before quotation and production.
Send a Drawing for Review →Why Aulister
Built Around Technical Review
◆
Material options
Pure tantalum, Ta-2.5W and Ta-10W are available for evaluation.
⌁
Drawing-based manufacturing
Parts can be produced from PDF drawings, STEP models or approved samples.
◎
Critical dimension inspection
Key dimensions, tolerances, threads and functional surfaces are inspected to the approved drawing.
✓
Quality documentation
Material certificates, dimensional reports and agreed traceability records can be supplied when specified.
Common Part Types
Custom Tantalum Machined Parts
Choose the closest part type, then send the drawing, material grade, quantity and service conditions for review.
02
Tantalum Crucibles & Liners
Crucibles, vessels and liners manufactured in different depths, wall thicknesses and configurations according to the drawing.
Forming · Machining · Surface finishing
03
Tantalum Threaded Parts
Bolts, nuts, studs and threaded connectors manufactured to stated thread standard, class and mating requirements.
Internal & external threading
04
Tantalum Bushings & Inserts
Precision parts with controlled bores, outside diameters, shoulders and mating features for assembly applications.
Boring · Reaming · Polishing
05
Chemical Equipment Components
Nozzles, sleeves, valve components and heat-transfer structures for corrosive service. Medium, concentration, temperature and pressure should be stated.
Drawing review · Process planning
06
Semiconductor & Vacuum Components
Brackets, shields, fixtures, rings and vacuum-system parts with specified cleanliness or functional-surface requirements.
Precision machining · Surface control
Materials
Material Grades
Final material selection should follow the drawing, purchase specification and service conditions. Chemical composition is governed by the agreed standard and material certificate.
| Grade | Material | General description | Confirm in RFQ |
|---|---|---|---|
| R05200 | Unalloyed tantalum | Common grade for formed and machined components. | Standard, condition, product form |
| R05400 | Unalloyed tantalum | Unalloyed grade with purchasing requirements that differ from R05200. | Standard, production route, certificate |
| R05252 | Ta-2.5W | Tantalum-tungsten alloy used when higher strength is required. | Load, temperature, material standard |
| R05255 | Ta-10W | Higher-tungsten alloy requiring review of geometry and machining route. | Geometry, load, duty cycle |
Technical
Technical Capabilities
These items are customizable. Final feasibility and tolerances are confirmed after drawing review.
| Item | Available or confirmed by drawing |
|---|---|
| Material grades | R05200, R05400, R05252 and R05255 |
| Part forms | Flanges, rings, crucibles, liners, bushings, threaded parts and non-standard components |
| Processes | CNC turning, milling, drilling, grinding, EDM and suitable forming processes |
| Dimensions | Manufactured to the customer drawing, STEP model or approved sample |
| Tolerances | Reviewed by feature; identify critical dimensions and datums on the drawing |
| Surface condition | As-machined, ground or polished; roughness confirmed for specified functional surfaces |
| Inspection documents | Material certificate, dimensional report and other agreed inspection records |
| Drawing formats | PDF with STEP or STP preferred; DWG, DXF and physical samples can also be evaluated |
| Order quantity | Prototype, small-batch and repeat-order inquiries are welcome |
Design-review firstCritical dimensions, datums, service conditions and documentation are clarified before quotation.
Inspection aligned to RFQDefine the dimensions, tolerances, surface requirements and documents that matter to your application.
Service temperature reviewedActual component temperature capability depends on atmosphere, load, geometry, joining method and thermal cycling.
Applications
Built for Demanding Service Conditions
Application details help define material selection, geometry, surface requirements, inspection and quotation.
Chemical & Corrosion-Resistant Equipment
Heat exchangers, vessels, nozzles, valves and sleeves that contact process media. Include medium, concentration, temperature and pressure.
Semiconductor & Vacuum Equipment
Fixtures, shields, brackets, rings and vacuum-system structural parts with defined cleanliness and functional-surface requirements.
High-Temperature Vacuum Systems
Crucibles, evaporation components and hot-zone parts. Include atmosphere, load and duty cycle in the RFQ.
Laboratory & Research Equipment
One-off prototypes, test components and custom parts requiring special materials or dimensions.
Representative RFQ Example
What a Complete Tantalum RFQ Looks Like
A European customer requested one prototype round bar in R05252 Ta-2.5W with a material certificate and a defined quotation lead time. The inquiry was reviewed by separating grade, tungsten content, dimensions, quantity, documentation and schedule instead of treating it as a generic bar request.
This is an anonymized real inquiry shown to illustrate quotation inputs. It is not presented as a completed delivery.
Material
R05252 Ta-2.5W
Product
Tantalum-tungsten round bar
Dimensions
Diameter 18 × 60 mm
Quantity
1 piece
Document
Material certificate
Quoted lead time
12 days
FAQ
Frequently Asked Questions
Answers written around the information purchasing and engineering teams need before RFQ.
What is the difference between R05200 and R05400?
Both are UNS designations for unalloyed tantalum, but their manufacturing routes and purchasing requirements differ. State the applicable material standard, condition and product form in your inquiry.
What tolerances can you achieve on tantalum parts?
Tolerance capability depends on part size, wall thickness, geometry, datums and inspection method. Mark the critical dimensions on your drawing so each feature can be evaluated.
Can you manufacture one prototype?
One-piece and small-batch requirements can be evaluated. Prototype pricing considers material minimums, setup, machining, inspection and documentation.
What quality documents can you provide?
Material certificates, dimensional inspection reports and other agreed inspection records can be supplied when specified in the order.
What information is required for a quotation?
Provide a PDF drawing and STEP model together with material grade, quantity, service conditions, critical tolerances, surface requirements and required inspection documents.
RFQ
Need a Tantalum Part Made to Your Drawing?
Send your PDF drawing and STEP or STP model with material grade, quantity and service conditions. The technical requirements can be reviewed before quotation.
Part name and material gradeDimensions and required quantityCritical tolerances and datumsSurface finish or roughnessService conditionsRequired inspection documents
