Tantalum tube and pipe, ASTM B521, seamless and welded for chemical and heat exchanger systems

Tantalum Tube – Pipe

Key Advantages

Precision customization: Round, square, coil, and U-shape tubes; seamless or welded; sizes made to drawing; small-batch sampling available.
Exceptional corrosion resistance: Excellent stability in nitric, sulfuric, hydrochloric and many mixed acids (excluding HF).
High-temp and dielectric performance: High melting point, low vapor pressure and good dielectric properties for harsh chemical and high-purity systems.
Process control & QA: Full chemical, mechanical, NDT and dimensional inspections available for critical projects.

Primary Applications

Chemical Processing: Acid-resistant pipelines, liners and reaction vessels.
Heat Exchangers: Shell-and-tube and U-tube designs in corrosive media.
Medical & Electronics: Biocompatible tubes and dielectric components for implants and high-end devices.

Testing (Typical)

Chemical composition and mechanical property testing
Ultrasonic testing and electric non-destructive testing
Hydrostatic testing
Visual surface and dimensional inspection

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-performance tantalum tube/pipe manufactured to ASTM B521. Using high-purity tantalum and tantalum-alloy grades with seamless or welded processes, these tubes deliver excellent chemical stability, corrosion resistance and long-term reliability in chemical processing systems, heat exchangers and high-temperature industrial applications.

Technical Specifications

Parameter	Details	Why It Works for You
Materials	R05200, R05400, R05252, R05255, TaNb, TaW alloys	High-temperature strength and corrosion resistance
Standard	ASTM B521	Recognized standard for tantalum tubes in critical service
Form	Round, square, coil, U-shape	Supports straight runs, coils and U-tube exchangers
Size	Custom per drawings	Matches exact design; minimizes secondary machining
Length	Standard & cut length	Fits installation and equipment layouts
Technique	Seamless or welded	Seamless for high-pressure/critical duty; welded for cost efficiency
Surface	Polished or as specified	Meets cleanliness and corrosion-resistance requirements
Packing	Seaworthy wooden case	Protects tubes for international transport

Chemical Composition (Max. Impurities, wt.%)

Designation	Main Ta	Nb	Fe	Si	Ni	W	Mo	Ti	O	C	H	N
Ta1	Remainder	—	0.004	0.003	0.002	0.004	0.006	0.002	0.03	0.01	0.0015	0.002
Ta2	Remainder	—	0.01	0.01	0.005	0.02	0.02	0.006	0.08	0.015	0.0015	0.01
TaNb3	Remainder	<3.5	0.01	0.01	0.005	0.02	0.02	0.005	0.015	0.01	0.0015	0.01
TaNb20	Remainder	17.0–23.0	0.01	0.01	0.005	0.02	0.02	0.005	0.015	0.01	0.0015	0.01
Ta2.5W	Remainder	—	0.005	0.003	0.002	3.0	0.006	0.002	0.04	0.015	0.0015	0.006
Ta10W	Remainder	—	0.005	0.003	0.002	11	0.006	0.002	0.04	0.015	0.0015	0.006

Mechanical Requirements (Annealed Condition)

Grade (UNS)	Tensile Strength min.	Yield Strength min.	Elongation min.
R05200 / R05400	30000 psi (207 MPa)	20000 psi (138 MPa)	25%
R05252	40000 psi (276 MPa)	28000 psi (193 MPa)	20%
R05255	70000 psi (481 MPa)	60000 psi (414 MPa)	15%
R05240	40000 psi (276 MPa)	28000 psi (193 MPa)	20%

Ordering Checklist

Standard & grade: ASTM B521; specify R05200 / R05400 / R05252 / R05255 or TaNb / TaW alloy
Form & geometry: round / square / coil / U-tube; OD / WT / ID / length; exchanger layout if applicable
Technique: seamless or welded; pressure rating and service medium requirements
Surface: polished or specified roughness and cleanliness
Testing & NDT: chemical, mechanical, UT, hydrostatic, electrical NDT; third-party witnessing if needed
Documentation: MTC EN 10204 3.1; inspection reports; RoHS/REACH on request
Quantity & packaging: batch size; packing configuration; export wooden cases
Logistics: target lead time; Incoterms; destination and preferred carrier