304L SS Standard ConFlat® (CF) UHV Flanges
Please choose an option by Size or Type:
Flange Sizes:
Flange Types:
Fixed-Through Blank (Blind)
CF 304L SS fixed blank (blind) flange, through (clearance) holes.
Rotatable-Through Blank (Blind)
CF 304L SS rotatable blank (blind) flange, through (clearance) holes.
Fixed-Through Bored
CF 304L SS fixed bored flange, through (clearance) holes.
Rotatable-Through Bored
CF 304L SS rotatable bored flange, through (clearance) holes.
Fixed-Tapped Blank (Blind)
CF 304L SS fixed blank (blind) flange, tapped imperial or metric threaded holes.
Rotatable-Tapped Blank (Blind)
CF 304L SS rotatable blank (blind) flange, tapped imperial or metric threaded holes.
Fixed-Tapped Bored
CF 304L SS fixed bored flange, tapped imperial or metric threaded holes.
Rotatable-Tapped Bored
CF 304L SS rotatable bored flange, tapped imperial or metric treaded holes.
304L SS Standard ConFlat® (CF) UHV Flanges for High Vacuum Integrity
ThinFilmMaterials offers precision-engineered 304L SS Standard ConFlat® (CF) UHV Flanges designed for ultra-high vacuum (UHV) and high-purity environments. Manufactured from corrosion-resistant 304L stainless steel, these flanges ensure leak-tight metal-to-metal sealing, superior structural strength, and long-term performance in demanding vacuum systems.
Our 304L SS Standard ConFlat® (CF) UHV Flanges feature the industry-standard knife-edge sealing profile, compatible with annealed copper gaskets, providing reliable sealing to pressures as low as 10⁻¹² Torr. Available in both rotatable and non-rotatable styles, these flanges are ideal for vacuum chambers, PVD/CVD systems, and research instrumentation requiring clean, dependable connections.
Key Features:
Material: 304L stainless steel for enhanced corrosion resistance and weldability
Leak rate performance: ≤ 1×10⁻¹⁰ mbar·L/s
Sizes: CF1.33″ to CF16.5″, rotatable & fixed types available
Conforms to ConFlat® and ISO/SEMI standards
Compatible with copper, silver-plated, or aluminum gaskets
Applications:
These 304L SS Standard ConFlat® (CF) UHV Flanges are widely used in:
Ultra-high vacuum systems and beamlines
Semiconductor process chambers
Surface science equipment and synchrotron tools
Cryogenic, fusion, and plasma research setups
For customers requiring custom flange assemblies or welded port modifications, ThinFilmMaterials provides machining services and pre-cleaning upon request. Our flanges are designed to integrate seamlessly into complex vacuum architectures while maintaining maximum sealing reliability.