Niobium Ingot

CAS Number:	7440-03-1
Standard:	ASTM B392
Purity:	99.9%, 99.95%, 99.99%
Size:	20-295mm in Diameter or 2-3 cm x 3-8 cm x 6-12 cm
Surface:	Polished
Material Grade:	R04200-Type 1 -Reactor grade unalloyed niobium R04210-Type 2 -Commercial grade unalloyed niobium

 

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Product Description

Niobium ingot is a high-purity metallic product produced from niobium ores through the process of refining, smelting, and casting. Known for its excellent corrosion resistance, high strength-to-weight ratio, and high melting point, niobium is widely used in industries such as aerospace, electronics, and energy. Niobium ingots are the primary form of niobium used in the production of various alloys, including those utilized in jet engines, turbine blades, and superconducting magnets.

Niobium ingots are available in various sizes and compositions, ensuring versatility for a wide range of industrial applications. Due to their excellent mechanical properties and unique resistance to corrosion at high temperatures, niobium ingots are also favored in the manufacturing of high-performance components that are subjected to harsh environments, such as in the chemical industry and energy production.

 

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Features and Properties

High Melting Point: Niobium has a melting point of approximately 2,468°C (4,474°F), which makes it highly suitable for high-temperature applications, such as aerospace and energy systems.

Corrosion Resistance: It demonstrates excellent resistance to corrosion, even in aggressive environments, including acids, alkalis, and sea water.

Superconductivity: Niobium is a key material in the production of superconducting magnets, which are used in medical imaging devices (MRI) and scientific research.

High Strength: Niobium alloys exhibit high tensile strength, which makes them ideal for high-stress applications like jet engines and power plants.

Ductility: Despite its strength, niobium is highly ductile, making it easy to form and shape into required components or alloys.

Non-toxic: Niobium is biocompatible and non-toxic, making it suitable for medical applications and implants.

Alloying Properties: Niobium is commonly used in alloys, enhancing the properties of materials such as steel, titanium, and aluminum, offering greater strength, resistance to heat, and corrosion.

 

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Product Specifications

Chemical Composition: Niobium (Nb)

Purity: 99.5% to 99.9%

Dimensions: Customizable sizes, typically ranging from 20mm to 295mm in diameter and 100mm to 500mm in length.

Density: 8.57 g/cm³

Melting Point: 2,468°C (4,474°F)

Hardness: 200–300 HV (Vickers hardness)

Color: Silver-gray, metallic luster

Form: Solid ingots, which can be further processed into rods, sheets, or alloys as required.

 

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Product Standards

ASTM B392: Standard Specification for Niobium and Niobium Alloys

ISO 9001: Certified for quality management systems

RoHS Compliant: Free from hazardous substances, ensuring compliance with environmental regulations.

UL Certified: Meets safety standards for industrial and aerospace applications.

 

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Product Forms

Ingot: Primary form available in solid, rectangular or cylindrical shapes, customizable to the needs of your application.

Custom Sizes: Niobium ingots can be produced in various sizes, from small to large ingots, depending on the requirements of the client.

Machined Forms: Ingots can be further machined into rods, billets, or other specific shapes for industrial applications.

 

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Production Method and Production Equipments

Production Methods:

Refining and Smelting: Niobium ores are refined and smelted at high temperatures in a controlled atmosphere to separate the niobium from other impurities.

Electrolytic Refining: A method to purify niobium by electrolytic processes that ensure high-quality ingots with minimal contaminants.

Casting: After refining, the purified niobium is cast into ingots using continuous casting techniques.

Vacuum Arc Remelting (VAR): This process involves remelting the niobium ingot under vacuum conditions to improve its purity and material properties.

Production Equipments:

Electric Arc Furnace (EAF): Used for melting niobium ore or scrap to produce the initial molten material.

Vacuum Induction Furnace (VIF): Used to produce high-quality niobium by melting under vacuum, preventing contamination and ensuring purity.

Vacuum Arc Remelting Furnace (VAR): For further refining and improving the homogeneity and purity of the ingot.

Continuous Casting Equipment: Used to form ingots directly from molten niobium.

Rolling Mill: After casting, the ingots are processed into sheets, rods, and other shapes using rolling mills or forging presses.

 

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Applications and Related Industries

Aerospace: Niobium is widely used in aerospace applications, including the manufacture of jet engines, turbine blades, and other high-performance components subjected to extreme temperatures.

Energy: Niobium is critical in power generation applications such as turbine blades, reactors, and superconducting materials used in high-energy physics.

Electronics: It is used in the production of high-performance capacitors, resistors, and semiconductors.

Medical: Due to its biocompatibility, niobium is used in medical implants and devices.

Steel and Titanium Alloys: Niobium is often added to alloys to improve their strength, heat resistance, and corrosion resistance.

Superconducting Materials: Niobium-based alloys, particularly niobium-titanium and niobium-tin alloys, are used in superconducting magnets, MRI machines, and particle accelerators.

 

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Interesting Facts

Superconductor for MRI: Niobium is a vital material for creating the superconducting magnets used in MRI (Magnetic Resonance Imaging) machines, making it essential in the medical industry.

Lightweight but Strong: Niobium alloys offer a high strength-to-weight ratio, making them ideal for applications where both strength and lightweight properties are crucial, such as in the aerospace industry.

Space Exploration: Niobium alloys are used in spacecraft and rocket engines due to their heat resistance and durability in extreme environments.

Ancient Discovery: Niobium was first discovered in 1801 by the British chemist Charles Hatchett, and its unique properties have made it indispensable in modern technology.

Contribution to Steel Strength: Niobium is an important element in high-strength, low-alloy steel, often used in construction and transportation applications, ensuring improved structural integrity.

 

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Synonyms

Niobium Metal Ingot

Nb Ingot

Niobium Bar

Niobium Alloy Ingot

Niobium Rod

 

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Health & Safety Information

Handling and Storage:

Store niobium ingots in a dry, cool, and ventilated environment.

Keep away from moisture and direct sunlight to maintain material integrity.

Wear appropriate personal protective equipment (PPE), including gloves, safety goggles, and protective clothing when handling niobium ingots.

Avoid inhaling dust during machining or grinding operations.

Disposal:

Niobium is non-toxic and can be recycled, reducing the environmental impact of its disposal.

Dispose of any waste according to local hazardous waste regulations, although niobium itself is considered safe for handling.

 

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Why Choose Us for Your Niobium Ingot Needs?

High Purity: Our niobium ingots are produced with the highest purity, ensuring they meet the stringent requirements of your industry.

Custom Sizes: We offer customized sizes and specifications to meet your exact needs, whether for aerospace, electronics, or other industrial applications.

Global Shipping: We provide fast and reliable global shipping to ensure timely delivery of your order, wherever you are located.

Competitive Pricing: Our niobium ingots offer excellent value for money, without compromising on quality, making them ideal for large-scale industrial applications.

Technical Support: Our team is ready to provide expert guidance on selecting the right niobium products for your specific applications, ensuring you get the best results every time.

For more information or to place an order, please contact us today!

 

Chemical Composition

Composition%
Material	Main Content	Impurities (no more than %)
	Nb	Fe	Si	Ni	W	Mo	Ti	Ta	O	C	H	N
R04200	Remaining	0.004	0.004	0.002	0.005	0.005	0.002	0.05	0.012	0.0035	0.0012	0.003
R04210	Remaining	0.01	0.01	0.005	0.02	0.01	0.004	0.07	0.015	0.0050	0.0015	0.005

Mechanical Properities (annealed condition)

Grade	Tensile strength δbpsi (MPa), ≥	Yield strength δ0.2, psi (MPa), ≥	Elongation in 1"/2" gage length, %, ≥
			>=0.010	<0.010
R04200, R04210	18000 (125)	12000 (85)	25	20

Chemical Identifiers

Linear Formula	Nb
MDL Number	MFCD00011126
EC No.	231-113-5
Beilstein/Reaxys No.	N/A
Pubchem CID	23936
SMILES	[Nb]
InchI Identifier	InChI=1S/Nb
InchI Key	GUCVJGMIXFAOAE-UHFFFAOYSA-N

Niobium Ingot Properties (Theoretical)

Molecular Weight	92.9
Appearance	Silvery
Melting Point	2468 °C
Boiling Point	4742 °C
Density	8.57 g/cm3
Solubility in H2O	N/A
Electrical Resistivity	12.5 microhm-cm @ 0 °C
Electronegativity	1.6 Paulings
Heat of Vaporization	N/A
Poisson's Ratio	0.4
Specific Heat	0.064 Cal/g/K @ 25 °C
Tensile Strength	N/A
Thermal Conductivity	0.537 W/cm/K @ 298.2 K
Thermal Expansion	7.3 µm/(m·K)
Vickers Hardness	1320 MPa
Young's Modulus	105 GPa

 

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