Tantalum Powder

Custom sizes and standard sizes in stock
Quick Lead Time
Competitive Price

Tantalum Powder has excellent thermal and electrical conductivity, making it ideal for optics and electronics. As a leading supplier and manufacturer of premium tantalum products, Shanghai Yuepeng utilizes advanced machining centers to produce high-quality tantalum and tantalum alloy powder products for a wide range of applications.

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Tantalum Powder Data Sheet

Reference:	HMTA0002
Molecular Formula:	Ta
CAS:	7440-25-7
Purity:	99%, 99.9%, 99.95%, 99.99%, 99.999%
Particle Size:	-325 mesh, -200 mesh, or customized

Tantalum Powder

Tantalum Powder is a high-purity tantalum metal powder known for its high melting point, excellent corrosion resistance, and good electrical conductivity. It is widely used in electronics, aerospace, and medical industries, commonly for manufacturing capacitors, alloy additives, or 3D printing materials. Its fine particles and high chemical stability make it ideal for high-performance applications.

Tantalum Powder Specifications

Category		4N Tantalum Powder				3N5 Tantalum Powder
Grade		FT-01	FT-02	FT-03	FT-04	FT-1	FT-2	FT-3	FT-4
Impurity content (≤%)	Nb	0.0030	0.0030	0.0030	0.0030	0.0060	0.0060	0.0060	0.0060
	O	0.0800	0.0900	0.1000	0.1600	0.0850	0.0950	0.1100	0.1800
	N	0.0030	0.0030	0.0030	0.0030	0.0050	0.0050	0.0050	0.0050
	C	0.0020	0.0020	0.0020	0.0020	0.0050	0.0050	0.0050	0.0050
	Fe	0.0005	0.0005	0.0005	0.0005	0.0030	0.0030	0.0030	0.0030
	Si	0.0020	0.0020	0.0020	0.0020	0.0020	0.0020	0.0020	0.0020
	Ni	0.0005	0.0005	0.0005	0.0005	0.0020	0.0020	0.0020	0.0020
	Cr	0.0005	0.0005	0.0005	0.0005	0.0020	0.0020	0.0020	0.0020
	W	0.0010	0.0010	0.0010	0.0010	0.0020	0.0020	0.0020	0.0020
	Mo	0.0010	0.0010	0.0010	0.0010	0.0010	0.0010	0.0010	0.0010
	Ti	0.0005	0.0005	0.0005	0.0005	0.0005	0.0005	0.0005	0.0005
	Mn	0.0005	0.0005	0.0005	0.0005	0.0005	0.0005	0.0005	0.0005
	Cu	0.0005	0.0005	0.0005	0.0005	0.0005	0.0005	0.0005	0.0005
	Al	0.0005	0.0005	0.0005	0.0005	0.0005	0.0005	0.0005	0.0005
Screening		-100 mesh	-200 mesh	-300 mesh	-500 mesh	-100 mesh	-200 mesh	-300 mesh	-500 mesh
Screening		Oversized material is less than 5%				Oversized material is less than 5%

Low Oxygen Tantalum Powder Specifications

Category		Low Oxygen Tantalum Powder
Grade		FTD-01	FTD-02	FTD-03	FTD-04
Impurity Content (≤%)	Nb	0.0060	0.0060	0.0060	0.0060
	O	0.0200	0.0300	0.0400	0.0500
	N	0.0050	0.0050	0.0050	0.0050
	C	0.0050	0.0050	0.0050	0.0050
	Fe	0.0030	0.0030	0.0030	0.0030
	Si	0.0020	0.0020	0.0020	0.0020
	Ni	0.0020	0.0020	0.0020	0.0020
	Cr	0.0020	0.0020	0.0020	0.0020
	W	0.0020	0.0020	0.0020	0.0020
	Mo	0.0010	0.0010	0.0010	0.0010
	Ti	0.0005	0.0005	0.0005	0.0005
	Mn	0.0005	0.0005	0.0005	0.0005
	Cu	0.0005	0.0005	0.0005	0.0005
	Al	0.0005	0.0005	0.0005	0.0005
Screening		-100 mesh	-200 mesh	-300 mesh	-500 mesh
Screening		Oversized material is less than 5%

Tantalum Powder Properties

High purity
Low oxygen content
Large specific surface area
Uniform particle size distribution
Good flowability
High specific capacitance
Low leakage current

Tantalum Powder Applications

Electronics: Tantalum powder is widely used to manufacture tantalum capacitors, which are applied in communication equipment, computers, automobile electronics, household applications, etc.
Superalloys: Tantalum powder’s high strength and high-temperature resistance allow it to be used to manufacture superalloys for aerospace and nuclear energy applications.
Chemical industry: Tantalum powder is commonly used to manufacture chemical reaction vessels and pipelines that handle strong corrosive media.
Medical: Porous tantalum materials, made from tantalum powder, exhibit excellent biocompatibility and mechanical properties, and are commonly used for treating bone tissue injuries and femoral necrosis.

Tantalum and Tantalum Alloy

R05200, unalloyed tantalum, electron-beam furnace vacuum-arc melt, or both
R05400, unalloyed tantalum, powder-metallurgy consolidation.
R05255, tantalum alloy, 90 % tantalum, 10 % tungsten, electron-beam furnace of vacuum-arc melt, or both.
R05252, tantalum alloy, 97.5 % tantalum, 2.5 % tungsten, electron-beam furnace or vacuum-arc melt, or both.
R05240, tantalum alloy, 60 % tantalum, 40 % niobium, electron-beam furnace or vacuum-arc melt.

Tantalum Powder Packaging

The tantalum powder will be carefully handled to prevent damage during storage and transportation. Shanghai Yuepeng offers vacuum-sealed packaging, including 100g/bag, 500g/bag, 1kg/bag, and 25kg/drum, or can offer customized packaging as per specific requirements.

Tantalum Properties

Item	Value
Atomic number	73
Crystal structure	Body centred cubic
Electronic structure	Xe 4f¹⁴ 5d³ 6s²
Valences shown	2,3,4,5
Atomic weight( amu )	180.9479
Thermal neutron absorption cross-section( Barns )	22
Photo-electric work function( eV )	4.1
Natural isotope distribution( Mass No./% )	180/ 0.012
Natural isotope distribution( Mass No./% )	181/ 99.988
Atomic radius – Goldschmidt( nm )	0.147
Ionisation potential( No./eV )	1/ 7.88
Ionisation potential( No./eV )	2/ 16.2

Item	Value
Material condition	Unannealed (Hard)
Material condition	Annealed (Soft)
Poisson’s ratio	0.342
Poisson’s ratio	0.342
Bulk modulus( GPa )	196.3
Bulk modulus( GPa )	196.3
Tensile modulus( GPa )	185.7
Tensile modulus( GPa )	185.7
Hardness – Vickers( kgf mm⁻² )	200
Hardness – Vickers( kgf mm⁻² )	90
Tensile strength( MPa )	760
Tensile strength( MPa )	172-207
Yield strength( MPa )	705
Yield strength( MPa )	310-380

Item	Value
Electrical resistivity( µOhmcm )	13.5@20@20°C
Superconductivity critical temperature( K )	4.47
Temperature coefficient( K⁻¹ )	0.0035@0-100°C
Thermal emf against Pt (cold 0C – hot 100C)( mV )	0.33

Item	Value
Boiling point( °C )	5425
Density( gcm⁻³ )	16.6@20°C

Element	Value
Melting point( °C )	2996
Latent heat of evaporation( J g⁻¹ )	4165
Latent heat of fusion( J g⁻¹ )	174
Specific heat( J K⁻¹ kg⁻¹ )	140@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	57.5@0-100
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	6.5@0-100°C

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To customize your tantalum powder, please provide the following details:

Purity
Particle Size
Quantity of the powder you need
Applications (We can also make recommendations based on your specific needs.）

Once we have these details, we can provide you with a quote within 24 hours.

We carry a wide variety of tantalum and tantalum alloy products in stock, and for these, there is generally no minimum order requirement. However, for custom orders, we typically set a minimum order value of $200. The lead time for stock items is usually 1-2 weeks, while custom orders usually take 3-4 weeks, depending on the specifics of the order.

DFARS (Defense Federal Acquisition Regulation Supplement) compliance is primarily concerned with the sourcing of materials for defense-related applications in the United States. According to DFARS, certain materials used in defense must be sourced from the United States or qualifying countries.

If you have specific tantalum materials that are subject to DFARS, please let us know in advance and we will confirm.

At Shanghai Yuepeng Tech, we take this responsibility seriously. We adhere to all applicable laws and regulations, including Section 1502 of the Dodd-Frank Act. Our company operates with a strict code of ethics and is committed to only partnering with suppliers who share our dedication to responsible sourcing. We support the initiatives and programs aimed at promoting “conflict-free” supply chains and work diligently to ensure that our products meet these standards.

Key indicators include:

High purity (typically >99.95%)
High specific capacitance (CV value, in μF•V/g)
Good flowability
Controlled particle size and distribution
Specific surface area and pore structure.

These directly impact the electrical performance and reliability of capacitors.

The Specific Capacitance (CV value) refers to the capacitance per unit weight of tantalum powder (μF•V/g). It is a core metric for quality. A higher CV value means less powder is needed to make a capacitor of the same capacitance, enabling miniaturization and cost reduction of capacitors. It is a key factor in technological competition.

Particle size affects sintering behavior and the final anode’s pore structure. Finer powders help achieve high CV. Particle size distribution affects the powder’s packing density and flowability. A wide distribution or ultrafines can cause uneven shrinkage and void formation during sintering, impacting capacitor consistency and reliability.

Shanghai Yuepeng Tech, established in 2022 in Shanghai, China, is a specialized supplier and manufacturer of tantalum and tantalum alloys. With extensive expertise in supply and export, we offer competitive pricing and customized solutions tailored to specific requirements, ensuring outstanding quality and customer satisfaction. As a professional provider of refractory metals, specialty alloys, spherical powders, and various advanced materials, we serve the research, development, and large-scale industrial production needs of the scientific and industrial sectors.

Tantalum Powder

Tantalum Powder

Tantalum Powder Data Sheet

Tantalum Powder

Tantalum Powder Specifications

Low Oxygen Tantalum Powder Specifications

Tantalum Powder Properties

Tantalum Powder Applications

Tantalum and Tantalum Alloy

Tantalum Powder Packaging

Tantalum Properties

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Tantalum Powder

Tantalum Powder Data Sheet

Tantalum Powder

Tantalum Powder Specifications

Low Oxygen Tantalum Powder Specifications

Tantalum Powder Properties

Tantalum Powder Applications

Tantalum and Tantalum Alloy

Tantalum Powder Packaging

Tantalum Properties

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Get A Quote

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