Pure Tantalum Plates & Sheets

R05200 pure tantalum plates & sheets are medium and thick-gauge plate products (usually 0.5mm—20mm in thickness) processed through multiple precision procedures including vacuum melting, hot rolling, cold rolling, and annealing, using high-purity commercially pure tantalum (Ta content ≥ 99.95%, complying with American Standard R05200 grade) as raw material. As a classic American Standard grade of high-purity tantalum-based materials, R05200 pure tantalum plates & sheets inherit the core advantages of tantalum materials. Their extreme corrosion resistance enables strong tolerance to most strong acids, alkalis, molten salts, and high-temperature gases except hydrofluoric acid, maintaining long-term stability in strong corrosive media without contaminating contact substances. With excellent high-temperature stability (melting point up to 2996℃, capable of long-term stable operation below 1400℃ and short-term resistance to 1800℃ high temperature), they ensure reliable performance in extreme temperature environments. Meanwhile, they possess characteristics such as ultra-pure material without impurities, balanced high strength and toughness, and outstanding electrical and thermal conductivity, making them key materials in fields with high requirements for material structural strength, dimensional accuracy, and extreme environment adaptability. They are particularly suitable for application scenarios involving medium-thick gauges, high precision, strong corrosion, and high-temperature working conditions, widely serving high-end fields such as chemical equipment, aerospace, electronic industry, laboratory research, and medical devices.

Product specification

Product Parameters

Product Information

Item	Regular Parameter Details	Custom Parameter Range
Thickness	0.5mm—20mm	20mm and above, customizable according to customer requirements
Width	50mm—500mm	50mm—1000mm and above, customizable according to customer requirements
Length	100mm—2000mm (single sheet)	Customizable on demand (single sheet, large block plate available)
Tolerance Range	Thickness tolerance: ±0.03mm—±0.1mm; Width tolerance: ±0.5mm—±2.0mm (complying with ASTM B708 American Standard)	Tolerance can be customized according to customer precision requirements
Surface Roughness	Polished surface: Ra≤0.3μm; Bright annealed surface: Ra≤0.8μm; Pickled surface: Ra≤1.2μm	Surface roughness can be customized on demand

Product Name	Pure Tantalum Plates & Sheets
Brand Name	Yunjie
Model	R05200 (American Standard)
Material	High-purity tantalum (commercially pure tantalum, complying with American Standard R05200 grade)
Manufacturing Process	Vacuum melting, hot rolling, cold rolling, annealing, finishing, surface treatment
Minimum Tantalum Content	Meeting American Standard R05200 high-purity grade requirements (Ta content ≥ 99.95%)
Density	16.6g/cm³
Advantages	Extreme corrosion resistance, excellent high-temperature stability, superior electrical and thermal conductivity, ultra-pure material without impurities, balanced high strength and toughness, strict dimensional accuracy, excellent surface finish
Surface Conditions	Pickled surface, bright annealed surface, cold-rolled bright surface
Delivery Conditions	Soft state (M), hard state (Y)
Processing Services	Customization of dimensions (thickness, width, length), cutting, drilling, welding and other machining processes
Minimum Order Quantity	1kg (calculated based on actual orders; preferential policies available for bulk purchases)

Classification

Classification by Product Thickness

•Medium-thin pure tantalum plates & sheets: 0.5mm—10mm in thickness, featuring good strength and flexibility, excellent processability, and suitable for various processing such as cutting, bending, welding, and stamping. Applicable scenarios include precision instrument structural parts, electronic equipment heat dissipation substrates, small chemical equipment components, and basic medical device parts.
•Thick pure tantalum plates & sheets: 10mm—20mm in thickness, with high structural strength, stable mechanical properties, and strong impact resistance, capable of complex forming processes such as machining, drilling, and milling. Applicable scenarios include liners for large chemical reactors, aerospace structural components, core components of high-temperature equipment, and substrates for large experimental devices.
Classification by Processing State

•Soft state (M) pure tantalum plates & sheets: Underwent full annealing treatment to completely eliminate internal stress, with excellent ductility and plasticity, facilitating complex forming processes such as deep drawing, bending, and stretching. Suitable for precision parts requiring secondary fine processing.
•Hard state (Y) pure tantalum plates & sheets: Unannealed or slightly annealed after cold rolling, with high strength, high hardness, and extremely high dimensional accuracy. Suitable for scenarios with strict requirements on strength and rigidity (such as structural parts in high-pressure environments, wear-resistant and high-temperature resistant components, etc.).
Classification by Surface Treatment Method

•Pickled surface pure tantalum plates & sheets: Thoroughly remove surface oxide scale and impurities, featuring high surface cleanliness and further improved corrosion resistance. Suitable for scenarios requiring high surface purity such as chemical corrosion-resistant equipment and laboratory environments.
•Bright annealed surface pure tantalum plates & sheets: Bright and flat surface after annealing, low oxidation degree, and can be directly used without subsequent polishing. Suitable for scenarios such as electronic component substrates and accessories with high appearance requirements.
•Cold-rolled forged surface pure tantalum plates & sheets: Retain the natural surface after cold rolling, with high dimensional accuracy. Suitable for scenarios with low requirements on surface appearance and emphasis on processability (such as substrates for subsequent coating and composite processing).

Specification Selection Table and Composition Table

Pure Tantalum Plates & Sheets Specification Selection Table

Chemical Composition Table

Product Type	Specification Range	Core Features	Applicable Scenarios
Laboratory-grade precision pure tantalum plates & sheets	Thickness: 0.5mm—5mm; Width: 50mm—500mm; Length: 100mm—2000mm (single sheet)	Ultra-pure material (Ta≥99.95%), minimal thickness tolerance, smooth and impurity-free surface, excellent ductility, easy processing and forming	Precision laboratory equipment, special material research and development substrates, micro-reaction vessels, university research projects, special material test substrates
Industrial-grade general-purpose pure tantalum plates & sheets	Thickness: 5mm—10mm; Width: 100mm—500mm; Length: 100mm—2000mm (single sheet)	High dimensional accuracy, clean surface, excellent corrosion resistance, stable processability, bulk supply available	High-temperature electronic component substrates, conventional chemical equipment parts, precision instrument structural parts, metal composite substrates, basic medical device parts
Industrial-grade heavy-duty pure tantalum plates & sheets	Thickness: 10mm—20mm; Width: 100mm—500mm; Length: 100mm—500mm (single sheet)	High strength, high toughness, stable high-temperature performance, good weldability, strong structural stability	Liners for large chemical reactors, aerospace structural components, core components of high-temperature equipment, large experimental devices, special anti-corrosion projects
Customized pure tantalum plates & sheets	Customized according to customer drawings (thickness, width, length, surface roughness, processing form)	Strong adaptability, performance optimized on demand, high degree of personalization, strict matching with customer equipment and process requirements	Special specification electronic devices, customized high-temperature equipment, high-end equipment supporting parts, special experimental devices, special engineering construction

Grade	Impurity Content, Max. (≤)
Grade	Ta	Fe	Si	Ni	C	N	O	H	Nb
R05200	≥99.95	0.01	0.005	0.01	0.01	0.01	0.015	0.0015	0.1
		W	Mo	Ti
		0.05	0.02	0.01

Characteristics

Extreme Corrosion Resistance

Demonstrates remarkable stability in challenging conditions, including high-temperature oxidizing atmospheres, molten salts, alkalis, and strong acids (apart from hydrofluoric acid). It is the recommended medium-thick gauge material for strong corrosive situations because the dense oxide film that forms on the surface may successfully withstand corrosion without polluting the contact medium.

Excellent High-Temperature Stability

Pure tantalum has a melting point of up to 2996℃, capable of long-term stable operation below 1400℃ and short-term resistance to 1800℃ high temperature. It can maintain good mechanical properties and corrosion resistance in high-temperature environments, adapting to medium-high temperature and extreme high-temperature working conditions.

Ultra-pure Material Without Impurities

Complying with American Standard R05200 high-purity grade requirements, with tantalum content ≥ 99.95% and extremely low impurity content. It will not undergo chemical reactions with contact materials, ensuring the safety and stability of product use, especially suitable for scenarios with strict requirements on material purity such as high-precision electronics, laboratories, and superconductivity.

Outstanding Processability

Combining high strength and good ductility, it can realize various mechanical processing such as cutting, bending, welding, drilling, and milling, meeting the preparation needs of parts with different shapes and specifications.

High-Precision Dimensional Control

Through precision cold rolling and finishing processes, it has minimal thickness and width tolerances, high surface flatness, and good dimensional consistency, which can accurately match the assembly requirements of high-end equipment and improve the performance stability of end products.

Excellent Surface Quality

Various surface treatment processes can achieve different surface finish requirements, with no oxide scale, scratches, or impurities on the surface. It not only improves corrosion resistance but also meets the high-end surface appearance requirements in fields such as electronics, optics, and aerospace.

Production Process

Raw Material Preparation: High-purity tantalum sponge is extracted from tantalum ore using mineral processing, enrichment, reduction, and other techniques. This sponge is then refined and repeatedly melted in a vacuum arc furnace to produce high-purity tantalum ingots (Ta content ≥ 99.95%, uniform composition, extremely low impurity content) that meet American Standard R05200 grade.
Hot Rolling Processing: In order to improve material density and remove internal imperfections, the tantalum ingot is heated to a particular temperature before being hot-rolled into a uniformly thick tantalum billet.
Cold Rolling Processing: The hot-rolled billet is gradually rolled into a pure tantalum plate billet near the finished product specification to ensure dimensional accuracy after undergoing several cold rolling passes with exact control over the reduction amount per pass in accordance with the required finished product thickness.
Intermediate Annealing: In order to remove processing internal stress, restore material plasticity, and prevent cracking, distortion, and other issues in later processing, intermediate annealing is introduced during the cold rolling process.

Production Process

Finished Product Annealing: The cold-rolled pure tantalum plates and sheets undergo completed product annealing treatment in accordance with the customer's required processing state (soft state, hard state), with exact control over the annealing temperature and holding time to guarantee that the material performance satisfies the requirements.
Surface Treatment: To guarantee surface quality, the annealed pure tantalum plates and sheets are subjected to surface treatment, which can include pickling (which removes oxide scale) or bright annealing (which improves surface finish).
Finishing and Inspection: The final products undergo on-demand trimming, cutting, and processing (drilling, milling, etc.) to ensure that their dimensions and shapes meet customer requirements. Strict inspections are then conducted, such as composition re-inspection, dimensional accuracy testing, surface quality testing, mechanical performance testing, etc., to guarantee that the product quality satisfies the requirements of ASTM B708 standard and American Standard R05200 grade. Material inspection reports and quality certificates are attached.

Application Fields

Electronic Industry

High-temperature electronic component substrates, semiconductor device packaging substrates, superconducting material supports, high-end battery heat dissipation plates, precision capacitor casings. Relying on high purity, high conductivity, and high-temperature stability, it ensures the stable operation of electronic devices in extreme environments.

Chemical Industry

Strong acid and alkali treatment equipment main bodies, chemical catalyst carriers, chemical pipeline flanges, precision chemical instrument seal seats, and liners for strong corrosive medium reactors. Extreme corrosion resistance is used to increase production safety and prolong equipment service life.

Laboratory Research

Large precision experimental devices, special material research and development substrates, high-temperature and high-pressure reaction vessels, corrosive environment simulation test platforms. The pure material is free from impurity contamination, ensuring experimental accuracy and data reliability.

Aerospace

Lightweight composite material substrates, spacecraft thermal protection system substrates, engine high-temperature and corrosion-resistant accessories, and spacecraft structural elements. It can adapt to the rigorous demands of the aerospace industry by combining exceptional environmental tolerance with high strength.

Medical Devices

Corrosion-resistant components of big medical equipment, bases of precision medical instruments, biological fluid contact panels, medical implant substrates (requiring specific processing). The material complies with medical device hygiene standards and is safe, non-toxic, and resistant to biological fluid corrosion.

New Energy Field

High-temperature fuel cell substrates, equipment seals connected to hydrogen energy, structural elements of superconducting energy storage equipment, and premium battery casing components. It enhances the functionality and safety of energy equipment by adjusting to the purity and corrosion resistance requirements of modern energy materials.

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As a professional expert providing solutions for pure tantalum (R05200, complying with ASTM B708 American Standard) and various metal foils/strips, pipes, rods/wires, plates, and crucibles, Baoji Yunjie is always at your service! For a full range of metal materials and products such as titanium, tantalum, niobium, zirconium, nickel, aluminum, tungsten, and cobalt, please feel free to contact us!

Pure Tantalum Plates & Sheets

Product specification

Classification

Specification Selection Table and Composition Table

Characteristics

Production Process

Production Process

Application Fields

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