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High-Purity Tantalum Plate & Sheet (Ta) | ASTM B708 Compliant

Reference: HTTa0015

Condition: New product

Supplied in strictly controlled purity (≥99.95%) and fully compliant with ASTM B708, our unalloyed Tantalum Plates (RO5200/RO5400) deliver glass-like corrosion resistance and extreme high-temperature stability. Ideal for chemical processing vessels, medical implants, and demanding aerospace applications. Custom thicknesses from 0.1mm to 50mm available.

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Data sheet

Materials	R05200, R05400, R05255, R05252, R05240
Standard	ASTM B708
Condition	Annealed, Unannealed

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Tantalum and tantalum alloy plates, meticulously manufactured using a state-of-the-art rolling process, exemplify outstanding performance and possess a uniformly structured grain. HM, trusted for its commitment to excellence, offers top-quality, tailor-made tantalum products, including ultra-thin and ultra-wide plates, fulfilling diverse industry needs.

Heeger Materials supplies premium-grade Tantalum Plate and Sheet (Ta purity ≥ 99.95%, RO5200 / RO5400) engineered for extreme industrial environments. Renowned for its exceptional corrosion resistance—often compared to glass—and a remarkably high melting point of 2,996°C, our unalloyed tantalum flat products are the absolute material of choice for demanding applications in chemical processing, aerospace superalloys, and advanced medical implants. We offer highly customized dimensions to meet your precise engineering tolerances.

Tantalum Plate (Ta Plate)

Tantalum Plate Specifications

Puirty: 99% - 99.999%
Size: thickness > 0.01875", width > 6", length < 7 ft

*If the width is <6”, please check the tantalum strip/foil.

*If the thickness is <0.1875”, please check the tantalum sheet.

Technical Specifications

Item	Standard Specifications & Dimensions
Standards	To ensure seamless integration into your manufacturing process, our Tantalum Plates comply strictly with ASTM B708 standards.
Material Grades	Unalloyed Tantalum (RO5200, Vacuum Electron Beam Melted), Powder Metallurgy Tantalum (RO5400), and Ta-W alloys (Ta2.5W, Ta10W).
Purity	≥ 99.95% (Trace impurities strictly controlled, detailed COA provided per batch).
Thickness	0.1 mm to 50 mm (Custom thickness available upon request).
Width x Length	Up to 1000 mm x 2000 mm (Depending on thickness).
Surface Finish	Bright, chemically cleaned, or as-rolled (Defect-free, guaranteed no cracks or delamination).

Tantalum and Tantalum Alloys UNS Grade

UNS R05400, unalloyed tantalum, powder-metallurgy consolidation.
UNS R05255, tantalum alloy, 90 % tantalum, 10 % tungsten, electron-beam furnace of vacuum-arc melt, or both.
UNS R05252, tantalum alloy, 97.5 % tantalum, 2.5 % tungsten, electron-beam furnace vacuum-arc melt, or both.
UNS R05240, tantalum alloy, 60 % tantalum, 40 % niobium, electron-beam furnace or vacuum-arc melt.

Tantalum and Tantalum Alloys Chemical Analysis

Grade	Chemical Composition (≤%）
Grade	Ta	Fe	Si	Ni	W	Mo	Ti	Nb	O	C	H	N
Ta1	Bal.	0.005	0.005	0.002	0.01	0.01	0.002	0.03	0.015	0.01	0.0015	0.01
Ta2	Bal.	0.03	0.02	0.005	0.04	0.03	0.005	0.1	0.02	0.01	0.0015	0.01
TaNb3	Bal.	0.03	0.03	0.005	0.04	0.03	0.005	<3.5	0.02	0.01	0.0015	0.01
TaNb20	Bal.	0.03	0.03	0.005	0.04	0.03	0.005	17.0-23.0	0.02	0.01	0.0015	0.01
Ta2.5W	Bal.	0.005	0.005	0.002	3.0	0.01	0.002	0.04	0.015	0.01	0.0015	0.01
Ta10W	Bal.	0.005	0.005	0.002	11	0.01	0.002	0.04	0.015	0.01	0.0015	0.01

Where Our Tantalum Plates Are Used

Due to its excellent thermal conductivity, ductility, and inertness to most acids (including Aqua Regia), our Ta plates are utilized across highly regulated sectors:

Chemical Processing Equipment: Fabricated into heat exchangers, reaction vessels, condensers, and bursting discs where resistance to severe acidic environments is critical.
Medical Devices: Tantalum is highly biocompatible and radio-opaque. Our plates are frequently stamped or machined into surgical implants, orthopedic bone plates, and pacemaker components.
Aerospace & Defense: Used as heat shields, rocket motor parts, and in the formulation of high-temperature superalloys for turbine blades.
Sputtering Targets: Thicker plates are machined into high-purity Tantalum sputtering targets for semiconductor thin-film coating.

Engineering Note: Machining Tantalum

Tantalum is notoriously "gummy" and prone to galling during machining. Our engineering team recommends using high-speed steel (HSS) or cemented carbide tools with highly positive rake angles. Copious amounts of water-soluble cutting fluids must be applied to prevent chip welding and ensure a smooth surface finish. If you require pre-machined tantalum parts rather than blank plates, our CNC division can provide fully fabricated components to your exact drawings.

Tantalum Plate Packaging

The Tantalum Plate will be carefully packaged in a wooden case supported by soft materials to prevent any movement or shifting during transportation.

Tantalum Plate (Ta Plate) Packing

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Product Data Sheet_PDS_Ta, TaW

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