Niobium Foil – Strip

Key Advantages

Precision customization: Thickness 0.03–0.5 mm, width 10–500 mm, multiple tempers and surface finishes; small-batch sampling available.
High-temperature & corrosion performance: Suitable for chemical, electronic and superconducting applications requiring stability at elevated temperatures.
Process control: Cold-rolled and vacuum-annealed to ensure uniform grain structure, mechanical stability and clean surfaces.
High purity & low toxicity: Stable, low-impurity niobium grades support critical chemical, nuclear, electronics and medical environments.

Primary Applications

Superconductor industry: Targets and foils for superconducting wires and devices.
Chemical processing: Anti-corrosion liners and reactor components in aggressive inorganic media.
Electronics & medical: Capacitors, optical and sputtering targets, medical treatment devices.

Testing (Typical)

Visual inspection (surface quality)
Mechanical testing (tensile, ductility)
Chemical composition analysis (impurity control)

Send your specifications (grade, size, quantity) — quotation and lead time within 12 hours. Trial orders with flexible MOQ are supported for evaluation and qualification. All materials are supplied with EN 10204 3.1 MTC and full inspection documentation for export compliance.

Product Description

LuminaTitanium supplies high-quality niobium foil/strip manufactured to ASTM B393. With thickness from 0.03 to 0.5 mm, multiple surface finishes and vacuum-annealed tempers, our niobium foil offers excellent high-temperature performance, corrosion resistance, formability and electrical properties for superconducting, chemical and high-tech electronic applications.

Technical Specifications

Parameter	Details	Why It Works for You
Materials	R04200, R04210, R04251, R04261	Covers unalloyed and Zr-alloyed niobium for critical service
Standard	ASTM B393	Recognized global standard for niobium strip/foil
Thickness	0.03–0.5 mm	Supports precision, thin-gauge applications
Width	10–500 mm	Matches common coil/strip layouts; reduces rework
Technology	Cold-rolled, vacuum annealed	Delivers stable properties and clean surfaces
Condition	Vacuum annealed	Enhances high-temp performance and stability
Surface	Mill, brushed, polished, bright, sand-blasted, etc.	Aligns with bonding, brazing or visual requirements
Form	Foil in coil or cut-to-length	Fits continuous lines and downstream processing

Chemical Requirements (Max. Weight %)

Element	R04200 (Unalloyed)	R04210 (Unalloyed)	R04251 (1% Zr)	R04261 (1% Zr)
C	0.010	0.010	0.010	0.010
O	0.015	0.025	0.015	0.025
N	0.010	0.010	0.010	0.010
H	0.0015	0.0015	0.0015	0.0015
Fe	0.005	0.010	0.005	0.010
Mo	0.010	0.020	0.010	0.050
Ta	0.100	0.300	0.10	0.50
Ni	0.005	0.005	0.005	0.005
Si	0.005	0.005	0.005	0.005
Ti	0.020	0.030	0.020	0.030
W	0.030	0.050	0.030	0.050
Zr	0.020	0.020	0.8–1.2	0.8–1.2
Nb	Remainder	Remainder	Remainder	Remainder

Ordering Checklist

Standard & grade: ASTM B393; R04200 / R04210 / R04251 / R04261
Dimensions: thickness × width × coil or cut length; flatness and tolerance requirements
Condition & surface: vacuum-annealed; mill/bright/polished/other specified finishes
Testing & QA: chemical and mechanical reports; additional inspections on request
Documentation: MTC EN 10204 3.1; inspection reports; RoHS/REACH if applicable
Quantity & packaging: coil weight/length; packing type for export
End use: superconducting, chemical, capacitor, or medical applications (for grade/finish recommendations)