

Bimetal Ti/Al CF Flanges
Durable, non-magnetic UHV sealing for aluminum vacuum chambers
Atlas Bimetal Ti/Al CF Flanges feature an aluminum flange body bonded to a rugged titanium face for a completely non-magnetic vacuum system.
CFTA-1400-27
14.00" (356mm/DN295) tube mount bimetal Ti/Al CF flange
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Product Specifications
Titanium UHV Sealing for Aluminum Chambers
The Atlas Bimetal Ti/Al CF Flange with aluminum flange body bonded to rugged titanium uses the time-tested reliability of the ConFlat® (CF) knife-edge seal. After welding the CFTA™ flange to an aluminum vacuum chamber, it becomes a completely non-magnetic UHV chamber. This supports applications where high magnetic permeability is detrimental to beam quality or experimental results.
Non-magnetic aluminum vacuum chambers are used for UHV synchrotron, particle physics, and industrial applications where high magnetic permeability is detrimental to beam quality or experimental results. Such applications include non-magnetic beam tubes, wigglers, undulators, free electron lasers (FEL), drift tubes, and spectrometers.
Applications:
- UHV synchrotron
- Particle physics
- Semiconductor fabrication
- Industrial applications
- XHV quantum physics
- Beam tubes
- Wigglers and undulators
- Free electron lasers (FEL)
- Drift tubes
- Spectrometers
Low Z, Low Nuclear: Atlas titanium-aluminum flanges enable aluminum UHV systems to be used in demanding nuclear applications requiring a low z environment.
- Cyclotrons
- Nuclear reactors
- Medical imaging
Light/Low Weight: With weight-to-volume ratios 1/3 that of stainless vacuum chambers, an aluminum chamber with Ti/Al flanges significantly reduces overall weight:
- Aerospace
- Portable systems
Features & Specifications:
- UHV Rated to 1 x 10-13 Torr
- Bake-out temperatures up to 250°C
- 1/3 the weight of stainless flanges
- Fully compatible with industry standard ConFlat flange interface – CERN’s innovative 20° back-bevel (90° included angle) knife-edge design
- Standard flange sizes: 1.33”-16.5” (DN16-DN500)
- Used in high (HV), ultrahigh (UHV) and extreme high vacuum (XHV) applications
Materials
- Body/weld interface: aluminum 6061-T6
- Sealing knife-edge face: titanium grade 2, (commercially pure titanium optional)
- Rotatable collar/receiver: aluminum 6061-T6, titanium 0ptional
Environmental
- Vacuum leak tested: < 1 x 10-9 cc/sec of He
Thermal
- Peak temperature: 300°C (during weld-up)
- Operational temperature: -200°C to 250°C
Mechanical—Bonded Interface
- Tensile: 15,00psi (103MPa)
- Shear: 10,000psi (69MPa)