Niobium Powder

Purity: 99.5%-99.99%

Material: R04200, R04210, R04251, R04261, R04295

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

Niobium Powder is made of high purity niobium metal material, exhibiting high temperature stability and excellent corrosion resistance. As a leading supplier and manufacturer of premium niobium products, Heeger Materials leverages advanced manufacturing technology to deliver high-quality niobium and niobium alloy powders for wide ranges of applications.

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Niobium Powder Data Sheet

Reference:	HMNB1112
Material:	R04200, R04210, R04251, R04261, R04220, R04295 (Nb1, Nb2, Nb1Zr Alloy, C103 Alloy, 45Nb Alloy (Nb-55Ti), Nb RRR (≥99.95%), Nb-7.5Ta, Nb-47Ti, Nb-50Ti, Nb-53Ti)
Purity:	99.5%-99.99%
Particle Size:	20-500 mesh, or customized

Niobium Powder

Niobium is a rare, silvery-gray transition metal with excellent corrosion resistance and high strength at high temperatures. Niobium Powder is primarily produced through high-temperature reduction of niobium, ensuring high purity. It possesses high chemical stability and high-temperature resistance, commonly used to prepare high-temperature alloys and corrosion-resistant alloys. HM can supply high-purity niobium powder with a wide range of particle sizes to meet specific requirements.

Niobium Powder
Niobium Powder 100μm_SEM
Niobium Spherical Powder_SEM

Niobium Powder Material Chemical Composition

Material	Main Element (%)	Impurities (≤%)
Material	Nb	Fe	Si	Ni	W	Mo	Ti	Ta	Zr	Hf	O	C	H	N
R04200	Bal.	0.0040	0.0040	0.0020	0.0050	0.0050	0.0020	0.0700	0.0200	0.0200	0.0150	0.0040	0.0015	0.0030
RO4210	Bal.	0.0100	0.0100	0.0050	0.0200	0.0100	0.0040	0.1000	0.0200	0.0200	0.0200	0.0100	0.0015	0.0100
RO4251	Bal.	0.0050	0.0050	0.0050	0.0300	0.0100	0.0200	0.1000	0.8-1.2	0.0200	0.0150	0.0100	0.0015	0.0100
RO4261	Bal.	0.0500	0.0050	0.0050	0.0500	0.0500	0.0300	0.5000	0.8-1.2	0.0200	0.0250	0.0100	0.0015	0.0100
R04220	Bal.	0.0050	0.0050	0.0030	0.0070	—	0.0050	0.1000	0.0100	—	0.0040	0.0030	0.0005	0.0030
RO4295	Bal.	—	—	—	0.5000	—	0.7-1.3	0.5000	0.700	9-11	0.0250	0.0150	0.0015	0.0100

Niobium Powder Specifications

Purity:	99.5%-99.99%
Particle Size:	-100 mesh, -200 mesh, -300 mesh, or customized for special sizes
Loose Packing Density:	2.5-3.5 g/cm³

Niobium Physical Properties

Density	8.57 g/cm³
Melting Point	2477°C
Electrical Resistivity	15 μΩ·cm
Thermal Conductivity	53 W/m·K
Thermal Expansion	7.3 μm/m·K

Niobium Mechanical Properties

Tensile Strength	550 MPa
Yield Strength	240 MPa
Elongation	30%
Elastic Modulus	105 GPa

Niobium High-Temperature Properties

Niobium maintains strength in a vacuum at temperatures above 1000°C
Niobium undergoes superconducting transition at 9.2K
Niobium exhibits low vapor pressure, even near its melting point

Niobium Powder Applications

Niobium Powder has excellent high-temperature resistance, corrosion resistance, and electrical conductivity, and is widely used in the following fields:

Steel Industry: Niobium powder is commonly used in the production of high-strength steel, which can significantly increase the yield strength and toughness of steel.
Superconducting Materials: Niobium powder is an important material in the manufacture of superconductors, such as niobium-titanium alloys and niobium-tin alloys, which are widely used in superconducting magnets and magnetic resonance imaging equipment.
Electronic Industry: Niobium powder has good electrical conductivity and corrosion resistance, and can be used to manufacture capacitors, resistors, and other electronic components.
Medical Field: Niobium powder has good biocompatibility and is commonly used to produce medical implants and surgical instruments.
Chemical Industry: Niobium powder is also commonly used to make corrosion-resistant equipment, such as reaction vessels and chemical processing equipment.
Thermal Spraying: Niobium powders with large particle sizes are often used for thermal spraying.

Niobium Powder Packaging

The Niobium Powder is carefully placed in wooden cases or cartons with additional support from soft materials to prevent any shifting during transportation. This packaging method guarantees the integrity of the products throughout the delivery process.

Niobium Properties

Item	Value
Atomic number	41
Crystal structure	Body centred cubic
Electronic structure	Kr 4d⁴ 5s¹
Valences shown	2, 3, 4, 5
Atomic weight( amu )	92.9064
Thermal neutron absorption cross-section( Barns )	1.15
Photo-electric work function( eV )	4.3
Atomic radius – Goldschmidt( nm )	0.147
Ionisation potential( No./eV )	3/ 25.0
Ionisation potential( No./eV )	2/ 14.3
Ionisation potential( No./eV )	6/ 103
Ionisation potential( No./eV )	1/ 6.88
Ionisation potential( No./eV )	4/ 38.3
Ionisation potential( No./eV )	5/ 50.5

Item	Value
Material condition / Temper	Annealed (Soft)
Material condition / Temper	Un-annealed (Hard)
Poisson’s ratio	0.397
Poisson’s ratio	0.397
Bulk modulus( GPa )	170.3
Bulk modulus( GPa )	170.3
Tensile modulus( GPa )	104.9
Tensile modulus( GPa )	104.9
Izod toughness( J m⁻¹ )	10-120
Hardness – Vickers( kgf mm⁻² )	115
Hardness – Vickers( kgf mm⁻² )	160
Tensile strength( MPa )	330
Tensile strength( MPa )	585
Yield strength( MPa )	550
Yield strength( MPa )	240

Item	Value
Electrical resistivity( µOhmcm )	16@20@20°C
Superconductivity critical temperature( K )	9.25
Temperature coefficient( K⁻¹ )	0.0026@0-100°C

Item	Value
Boiling point( °C )	4742
Density( gcm⁻³ )	8.57@20°C

Item	Value
Melting point( °C )	2468
Latent heat of evaporation( J g⁻¹ )	7360
Latent heat of fusion( J g⁻¹ )	290
Specific heat( J K⁻¹ kg⁻¹ )	268@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	53.7@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	7.2@0-100°C

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SAFETY DATA SHEET (SDS) – Niobium Powder

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To customize your niobium custom parts, 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 niobium and niobium 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 niobium materials that are subject to DFARS, please let us know in advance and we will confirm.

At Heeger Materials Inc., 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.

Heeger Materials Inc., established in 2016 in Colorado, USA, 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.

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