Tantalum Pipe Fittings

Metracore Alloys manufactures pipe fittings in a family of exotic and corrosion-resistant alloys, and tantalum occupies the most demanding position in that range. As a Tantalum Pipe Fittings manufacturer and supplier, we produce elbows, tees, reducers, crosses, bends, and socket weld types in UNS R05200 and R05400 material.

Tantalum is a refractory metal. It has a density of 16.6 g/cm³ and a melting point near 3017°C, and its surface oxide film keeps the metal stable in strong acid service. Chemical processors, pharmaceutical producers, and high-purity plants specify these fittings at points where a single leak would halt production.

Our ISO-certified manufacturing operation holds tight dimensional control, works to ASTM B363 and ASME SB363, and produces custom sizes against customer drawings. Due to their exceptional stability, these fittings are essential in environments handling hot hydrochloric acid, sulphuric acid, and other aggressive reagents where lower-grade metals fail rapidly

What are Tantalum Pipe Fittings?

A tantalum pipe fitting is a connection component formed from unalloyed tantalum for joining, branching, or reducing pipework in corrosive service. Base material purity is a minimum of 99.9% tantalum, with carbon, oxygen, nitrogen, and hydrogen kept low to preserve ductility. Corrosion resistance comes from a tantalum pentoxide film that repairs itself within seconds of surface damage, so hydrochloric, sulphuric, nitric, and phosphoric acids cause negligible attack at most concentrations below 150°C. Hydrofluoric acid and hot concentrated alkalis are the recognised exceptions, and tantalum isn’t selected for those media. The metal welds cleanly under inert gas shielding and cold forms without cracking. These fittings ensure piping network function for decades.

Why Choose Metracore Alloys?

Metracore Alloys runs ISO-certified manufacturing for tantalum and other reactive metal fittings, and every order carries EN 10204 3.1 documentation. Custom sizes are produced as per client’s requirements. Third-party inspectors are welcome on our shop floor when a project demands witness testing, and in-house production keeps pricing competitive. Ready stock keeps lead times short, and our team manages fast global shipping. Share your fitting sizes and grade to receive a manufacturing quotation.

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Table of Content

Specifications of Tantalum Pipe Fittings

Grades, applicable standards, size ranges, schedules, inspection arrangements, and certification for our buttweld and socket weld production are summarised below.

Types of Tantalum Pipe Fittings

Ten standard configurations cover directional, branching, reducing, and small-bore duties.

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Technical Details of Tantalum Pipe Fittings

Chemical Composition of Tantalum Pipe Fittings

Impurity limits define tantalum grades rather than alloying additions. Maximum permitted percentages are listed below for both production grades.

Element	R05200 (max %)	R05400 (max %)
Tantalum (Ta)	Balance	Balance
Niobium (Nb)	0.10	0.10
Oxygen (O)	0.030	0.015
Nitrogen (N)	0.010	0.010
Carbon (C)	0.010	0.010
Hydrogen (H)	0.0015	0.0015

Mechanical Properties of Tantalum Pipe Fittings

Annealed tantalum pairs moderate strength with high ductility, a combination that supports cold forming, vibration tolerance, and dependable welded joints.

Property	Tensile Strength	Yield Strength (0.2% offset)	Elongation	Hardness (typical)	Density	Melting Point
Value (Annealed Condition)	172 MPa (25 ksi) min	103 MPa (15 ksi) min	25% min	80 to 110 HV	16.6 g/cm³	3017°C

Features

Nine characteristics keep Tantalum Fittings in service where other piping materials fail early.

Strong acid resistance, with negligible attack in hydrochloric and sulphuric service below 150°C
Self-healing oxide layer that restores protection after abrasion or weld cleanup
A 2996°C melting point, among the highest of all metals
Thermal stability through rapid heating and cooling cycles
Chemical inertness that keeps high-purity media free of metallic pickup
Service life long enough to schedule replacement in decades
Low maintenance, since the surface doesn’t scale or pit
Weldability under argon shielding, plus dependable cold formability
Suitability for high-purity processing lines

Available Standards

Six references govern our production and documentation. We manufacture ASTM B363 Tantalum Pipe Fittings for buttweld service, and ASME SB363 Tantalum Pipe Fittings carry the same requirements under the ASME framework. ASME B16.9 sets dimensions and tolerances for factory-made wrought fittings, with MSS SP-43 addressing light-wall components for corrosion-resistant, low-pressure duty. Short radius elbow and return geometry falls under ASME B16.28. ASTM B521 covers the seamless and welded tantalum tube from which fabricated fittings start.

Advantages

Six practical gains follow when a plant specifies tantalum.

Resistance to highly corrosive chemicals without linings or coatings
Acidic environment performance across nearly the full concentration spectrum
Long operational life under continuous chemical exposure
Maintenance demands stay low from commissioning onwards
High reliability at points where failure stops the plant
Lower lifetime cost, because replacement cycles stretch far apart

Manufacturing Process of Tantalum Pipe Fittings

Typical Industrial Applications

The following industries prefer tantalum pipe fittings, each drawing on a different property.

Exporter, Manufacturer & Supplier of Tantalum Pipe Fittings in various material and sizes.

FAQs

What are Tantalum Pipe Fittings?

Tantalum Pipe Fittings are pipeline connectors made from unalloyed refractory tantalum, installed wherever corrosive process lines change direction, branch, or step down in size.

What makes Tantalum Pipe Fittings highly corrosion resistant?

A dense tantalum pentoxide film provides the corrosion resistance. It isolates the metal from acids and regrows in seconds after any mechanical damage.

Which standards are followed for Tantalum Pipe Fittings?

Manufacturing follows ASTM B363 and its ASME SB363 counterpart. Dimensional control comes from ASME B16.9, B16.28, and MSS SP-43, while tube stock meets ASTM B521.

Are Tantalum Pipe Fittings suitable for acid processing applications?

Yes. Nitric, hydrochloric and sulphuric acid processing up to 150°C sits within normal service, with hydrofluoric acid the major exclusion.

Which industries use Tantalum Pipe Fittings?

Chemical, pharmaceutical, petrochemical, semiconductor, power generation, and research facilities all rely on them.

Are buttweld and forged Tantalum fittings available?

Both are available. Tantalum Buttweld Pipe Fittings follow B16.9 geometries, while Tantalum Forged Pipe Fittings cover socket weld connections.

What sizes are available in Tantalum Pipe Fittings?

Standard production covers 1/2″ NB to 8″ NB in Sch 5S to Sch 40S. Larger diameters are quoted on request.

Do you provide custom dimensions and specifications?

Yes, we provide custom dimensions and specifications on request.

Are Mill Test Certificates (MTC) provided with the fittings?

Yes, Mill Test Certificates to EN 10204 3.1 are shipped along with each batch, recording chemical analysis, mechanical test results, and heat traceability.

Do you export Tantalum Pipe Fittings worldwide?

Yes, Metracore Alloys exports tantalum pipe fittings worldwide, with packing suited to sea and air freight and documents prepared for customs clearance.