Molybdenum Wire

Molybdenum wire is wire material made of high quality molybdenum powder, refined by powder metallurgy, drawing and other processes. It has excellent physical and chemical properties and is widely used in high temperature, high pressure, corrosive and other special environments. With its excellent performance, molybdenum wire has become an indispensable key material in electronics, semiconductor, aerospace, medical and many other fields.

Features of Molybdenum Wire:

High melting point and high temperature resistance: Molybdenum has a melting point of up to 2623 ° C, which allows it to maintain good mechanical properties and chemical stability in high temperature environments, and is not easily deformed or melted.

High strength and hardness: Molybdenum wire has high tensile strength and hardness, and can withstand large loads and wear.

Good conductivity and thermal conductivity: Molybdenum is a material with excellent conductivity and thermal conductivity, suitable for making various electrical and thermal conductive components.

Low coefficient of thermal expansion: Molybdenum has a low coefficient of thermal expansion, good dimensional stability, and is not easily deformed under temperature changes.

Good corrosion resistance: Molybdenum has good corrosion resistance in many acidic and alkaline media, which can meet the requirements of harsh environments.

Machinability: Molybdenum wire has good plasticity and processability, making it easy for subsequent processing such as cutting, bending, welding, etc.

High purity: The molybdenum wire produced by our company uses high-purity raw materials with low impurity content and stable and reliable quality.

 

Main Uses of Molybdenum Wire:

Electronics industry:

Vacuum electronic tube/light bulb heating element: Utilizing its high melting point and high temperature strength, it is used as the cathode and heating wire for vacuum tubes, light bulbs and other devices.

Semiconductor devices: Used as lead material, back electrode, etc. in the semiconductor manufacturing process.

X-ray tubes: Used as target materials and cathodes for X-ray tubes.

High-temperature furnace:

High-temperature heating elements: used as heating wires and heat generators in high-temperature furnaces, suitable for vacuum furnaces, sintering furnaces, and heat treatment furnaces, etc.

Cutting Tools: Molybdenum Wire 0.18mm used for Wire Cutting Machines

Wire Cutting Machines: Utilizing the high strength and precision of molybdenum wires, precision cutting is carried out in mold processing and other fields.

Aerospace:

High-temperature structural parts: Used in the manufacture of high-temperature structural parts such as rocket engine nozzles and high-temperature bearings.

Medical field:

Medical Devices: Used in the manufacture of certain special medical device components.

Other fields:

Chemical industry: used to manufacture corrosion-resistant vessels.

Glass industry: used as electrode in glass melting furnace.

EDM: Used as electrode material for EDM by utilizing its excellent electrical conductivity.

 

Specifications Of Pure Molybdenum Wire:

Diameter: 0.018mm~3.0mm (can be customized according to customer needs)

Length: Customizable

Surface condition: Black/cleaned

Purity: above 99.95%

 

Why Choose FOTMA Molybdenum Wire?

Quality assurance: FOTMA has advanced production equipment and strict quality control system to ensure the high purity and performance stability of our products.

Experienced: We have extensive experience in the production and processing of molybdenum materials, and can provide customers with professional technical support and customized solutions.

Reasonable price: We are committed to providing customers with cost-effective products and services.

Quick response: We have an efficient sales team that can promptly respond to customer needs and provide fast delivery services.

• Aerospace | Thomas Mitchell (USA)

How an aerospace procurement manager sourced 99.97% pure tungsten rods with custom specs and received delivery in half the expected lead time… Read Full Case Study

• Automotive | Marco Rossi (Italy)

How a car modification expert used custom CNC-machined tungsten alloy weights to fine-tune a vintage sports car’s handling—just in time for a major auto show… Read Full Case Study

• Electronics | Dr. Elena Carter (Canada)

How a semiconductor engineer replaced aluminum with MoCu heat sinks, improving thermal performance by 20°C while meeting aerospace-grade standards…  Read Full Case Study

 

 

Frequently Asked Questions

Q1: What are the main applications of molybdenum wire?

A1: Molybdenum wire is widely used in:

• Electrical discharge machining (EDM)
• Support and heating elements in vacuum furnaces
• Electronics, lighting, and semiconductor industries
• Spray coating and thermal spraying processes

Q2: What grades of molybdenum wire does FOTMA offer?

A2: FOTMA offers three standard grades:

• Mo1 (Type D) – ≥99.93% Mo
• Mo2 (Type R) – ≥99.90% Mo
• Mo3 (Type G) – ≥99.33% Mo with 0.20–0.60% additional elements

Each grade is designed for specific mechanical or thermal performance requirements.

Q3: What are the chemical purity and impurity limits?

A3: Molybdenum wire from FOTMA has tightly controlled impurity levels:

• Total impurities: ≤0.07% (Mo1), ≤0.10% (Mo2), ≤0.67% (Mo3)
• Individual elements: ≤0.01% for each standard impurity

This ensures high conductivity and performance stability at high temperatures.

Q4: What diameters and tolerances are available?

A4: FOTMA supplies molybdenum wire in a wide range of diameters, including ultra-fine wires as thin as 0.18 mm, with high dimensional accuracy and surface finish. Custom tolerances can be specified upon request.

Q5: Can I order molybdenum wire in custom packaging or forms?

A5: Yes. Molybdenum wire can be delivered in spools, straight lengths, or coils, with packaging customized to suit EDM machines, cleanroom conditions, or export handling needs.

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