Promotion of Industrial-Grade High-Purity Molybdenum / Alloy Molybdenum Rods / Wires

Molybdenum rods/wires are linear and rod-shaped molybdenum products made from high-purity molybdenum powder or molybdenum alloy powder through powder metallurgy, plastic processing and precision treatment. Among them, molybdenum wires are divided into fine wires (0.2mm-1mm) and thick wires (1mm-5mm) according to diameter differences, while molybdenum rods are classified into thin rods (3mm-20mm) and conventional rods (20mm-80mm) by diameter. With the high melting point of molybdenum element (2620℃) and excellent high-temperature mechanical properties, molybdenum rods/wires can maintain stable performance in extreme environments above 1600℃, becoming indispensable key materials in high-end fields such as aerospace, electronic manufacturing, and metallurgical processing. They can meet multiple core needs such as precision processing, high-temperature load-bearing, and conductive heating.

Product specification

Product Parameters

Product Information

Item	Parameters of Molybdenum Rod	Parameters of Molybdenum Wire
Diameter Range	3mm-200mm (conventional), special-shaped customizable	0.2mm-5mm (conventional), customizable for special requirements
Length Range	100mm-6000mm, fixed-length error ±2mm	Coiled wire (above 100m), straight wire (100mm-2000mm)
Tolerance Range	Diameter ≤20mm: ±0.05mm; 20mm-80mm: ±0.1mm; ＞80mm: ±0.2mm	0.2mm-1mm: ±0.003mm; ＞1mm: ±0.01mm
Implementation Standard	ASTM B386, GB/T 4182-2003	ASTM B387, GB/T 4181-2003

Product Name	Molybdenum Rod, Molybdenum Wire
Brand Name	Yunjie
Model	Pure Molybdenum Rod Mo1, High-Temperature Molybdenum Rod Mo-La, TZM Molybdenum Alloy Rod
Material	Pure Molybdenum (Mo1), High-Temperature Molybdenum Alloy (Mo-La), TZM Molybdenum Alloy (Ti-Zr-Mo)
Process	Molybdenum powder pressing + high-temperature sintering + swaging/rolling (for molybdenum rods); wire drawing + vacuum annealing + precision straightening (for molybdenum wires)
Molybdenum Content (Minimum)	99.95% (Pure Molybdenum Rod/Wire Mo1); Alloy molybdenum rods/wires comply with corresponding grade standards
Density	≥10.1g/cm³ (sintered state), ≥10.2g/cm³ (forged/rolled state)
Advantages	High high-temperature strength, excellent creep resistance, good electrical and thermal conductivity, wear and corrosion resistance, high dimensional accuracy, easy to process and form
Surface Condition	Bright surface (precision molybdenum wire), pickled surface (industrial molybdenum rod), polished surface (special molybdenum rod)
Shape and Specifications	Molybdenum rod (circular, square, hexagonal; diameter 3mm-200mm); Molybdenum wire (circular; diameter 0.1mm-5mm)
Processing Services	Cutting, turning, milling, drilling, thread processing, customized special-shaped molybdenum rods
Minimum Order Quantity	5kg for molybdenum rods, 1kg for molybdenum wires

Classification

Classification by Product Type and Specification

•Conventional Molybdenum Wire (0.2mm-1mm): General industrial specifications with both strength and flexibility. It is the mainstream choice for wire cutting and electro-vacuum devices, and can be stably supplied in batches.
•Thick Molybdenum Wire (1mm-5mm): Significantly improved rigidity, with tensile strength ≥600MPa. Mainly used in load-bearing scenarios such as high-temperature heating elements and electrode lead-out wires.
•erature heating elements and electrode lead-out wires. •Thin Molybdenum Rod (3mm-20mm): Precision forged and rolled, with straightness ≤0.1mm/m. It can be directly used for processing small precision components, reducing secondary processing procedures.
•Conventional Molybdenum Rod (20mm-80mm): Core industrial specifications, with density ≥10.2g/cm³ and high compactness. Suitable for various high-temperature equipment structural parts and processing blanks.
Classification by Material Composition

•Pure Molybdenum Rod/Wire (Mo1): Molybdenum content ≥99.95% (Mo1), low impurity content, excellent electrical and thermal conductivity, and good processing performance. Suitable for general industrial scenarios with outstanding cost-effectiveness. Among them, Mo1-grade products are especially suitable for electronics, semiconductors and other fields sensitive to impurities due to their high purity.
•Hot-Rolled Molybdenum Plate/Sheet: Suitable for medium and thick specification products, with high production efficiency and significant cost advantage, acid-alkali cleaned surface, and can be directly used for structural parts or subsequent processing.
•High-Temperature Molybdenum Rod/Wire (Mo-La): Added with 0.2%-1.5% lanthanum oxide (La₂O₃), its tensile strength remains above 400MPa at 1800℃ high temperature, and its creep resistance is 30% higher than that of pure molybdenum. Suitable for extreme environments such as aerospace and ultra-high temperature furnaces.
•TZM Molybdenum Alloy Rod/Wire (Ti-Zr-Mo): Added with 0.4%-0.6% titanium (Ti), 0.08%-0.12% zirconium (Zr) and trace carbon (C). The room-temperature tensile strength can reach above 850MPa, and the high-temperature strength at 1000℃ is 50% higher than that of pure molybdenum, with excellent creep resistance. Suitable for extreme working conditions with high strength and high temperature gradient.
Classification by Application Scenario

•Molybdenum Wire for Precision Processing: High wire diameter accuracy and stable tensile strength. Used in electrical discharge wire cutting processing, with cutting accuracy up to ±0.005mm, suitable for mold and precision part processing.
•Molybdenum Rod/Wire for High-Temperature Heating: Good high-temperature stability and long service life. Used as heating elements in vacuum furnaces, sintering furnaces and other equipment, with working temperature up to 1600℃.
•Molybdenum Rod/Wire for Electronic Electrodes: Stable conductivity and low contact resistance. Used as electrode lead-out parts for electron tubes, diodes and semiconductor devices.
•Molybdenum Rod for Structural Support: High mechanical strength and good straightness. Used as structural support components for aerospace equipment and high-temperature instruments.

Specification Selection Table and Composition Table

Molybdenum Rod/Wire Specification Selection Table

Chemical Composition Table

Product Type	Specification Range	Dimensional Tolerance	Core Characteristics	Matching Scenarios
Conventional Molybdenum Wire	0.2mm-1mm	Diameter: ±0.003mm; Straightness: ≤0.1mm/m	High tensile strength, good wear resistance, excellent batch stability	Electrical discharge wire cutting, electron tube electrodes, heating wires for small vacuum furnaces
Thick Molybdenum Wire	1mm-5mm	Diameter: ±0.01mm; Straightness: ≤0.2mm/m	Strong rigidity, tensile resistance, small deformation at high temperature	Heating elements for industrial furnaces, high-power electrode lead-out wires, battery conductive columns
Thin Molybdenum Rod	3mm-20mm	Diameter: ±0.05mm; Straightness: ≤0.1mm/m	Precision forming, good processability, high dimensional accuracy	Precision instrument structural parts, small high-temperature molds, semiconductor equipment accessories
Conventional Molybdenum Rod	20mm-80mm	Diameter: ±0.1mm; Straightness: ≤0.3mm/m	High compactness, stable mechanical properties, outstanding cost-effectiveness	Sapphire crystal growth furnace components, vacuum furnace brackets, metallurgical equipment electrodes

Grade	Mo	Impurity Content, Max. (≤)									Alloy Element Content
Grade	Mo	Al	Ca	Fe	Mg	Ni	Si	C	N	O
Mo1	99.95	0.002	0.002	0.01	0.002	0.005	0.01	0.01	0.003	0.008	—
Mo-La	98.2%	0.002	0.002	0.015	0.005	0.005	0.01	0.02	0.005	0.03	La2O₃:0.2-1.5%
TZM	99.2%	0.003	0.003	0.015	0.005	0.005	0.01	0.04-0.08	0.005	0.03	Ti:0.4-0.6%, Zr:0.08-0.12%

Characteristics

Ultra-High Temperature Resistance

With a melting point of 2620℃, it can work stably for a long time below 1600℃ and still maintain a certain mechanical strength at 1800℃. Far exceeding ordinary metal materials, it is the first choice for extreme high-temperature environments.

Excellent Mechanical Properties

The room-temperature tensile strength can reach 550MPa-700MPa, and the strength can be increased to more than 800MPa after forging and rolling. At the same time, it has good toughness and is not easy to break under impact load, suitable for load-bearing scenarios.

Efficient Electrical and Thermal Conductivity

The electrical conductivity is about 35% of that of copper, and the thermal conductivity reaches 138W/(m·K). It can quickly conduct current and heat in electronic and electrode applications, avoiding performance degradation caused by local overheating.

Excellent Corrosion and Wear Resistance

It has strong chemical stability in non-oxidizing acids, alkaline solutions and most organic solvents, with high surface hardness (HV≥150) and excellent wear resistance, prolonging the service life of products.

Low Vapor Pressure and Vacuum Adaptability

The volatilization amount is extremely low at high temperature, and the vapor pressure is much lower than that of other metals. It will not cause volatile pollution when used in a vacuum environment, suitable for scenarios such as vacuum furnaces and electronic vacuum devices.

Precise Dimensional Stability

Through precision forging, rolling, wire drawing and annealing processes, the product has high dimensional accuracy, low thermal expansion coefficient (5.8×10⁻⁶/℃), and small deformation at high temperature, ensuring the operation accuracy of equipment.

Good Processability

It can undergo various mechanical processing such as turning, milling, drilling and thread processing, and can also be welded and bent to form, which can meet the customized needs of different scenarios.

Production Process

Raw Material Selection and Preparation: High-purity molybdenum concentrate with a purity of more than 99.97% is selected, and ultra-fine molybdenum powder is made through roasting and reduction processes; lanthanum oxide powder is added to high-temperature molybdenum products, and titanium, zirconium and carbon element powders are added to TZM alloy products in proportion. Uniform mixing is achieved through a mixer to ensure component consistency.
Compression Molding: Isostatic pressing technology is used to press molybdenum powder into cylindrical or special-shaped blanks, and the molding pressure (150MPa-200MPa) is controlled to ensure uniform density of the blanks and reduce internal defects.
High-Temperature Sintering: The blanks are put into a molybdenum wire furnace or a vacuum sintering furnace, and sintered at a temperature of 1800℃-2200℃ to densify the blanks. The density after sintering is ≥10.1g/cm³, and internal pores are eliminated.
Plastic Processing: Molybdenum rods are processed to the target diameter through multiple passes of hot forging (1200℃-1400℃), cold forging and rolling, so as to improve the compactness and mechanical properties of the material; molybdenum wires are made through multiple passes of precision wire drawing, and the drawing amount per pass (3%-8%) is controlled to ensure uniform wire diameter.
Vacuum Annealing Treatment: The processed products are put into a vacuum annealing furnace (vacuum degree ≤1×10⁻³Pa) and kept at 1000℃-1200℃ to eliminate processing internal stress and improve the ductility and dimensional stability of the material.
Precision Finishing and Processing: Molybdenum rods are straightened, cut and surface-treated; molybdenum wires are arranged, coiled and tension-controlled, and customized processing (such as thread processing and fixed-length cutting) is carried out according to customer needs.
Comprehensive Quality Inspection: Spectral analysis is used to detect chemical composition, ultrasonic flaw detection to detect internal defects, micrometers and projectors to measure dimensional accuracy, and tensile testing machines to test mechanical properties, ensuring that products meet standards and are delivered with material testing reports.

Application Fields

Aerospace Field

TZM molybdenum alloy rods are used for aircraft engine turbine blade blanks and high-temperature load-bearing components of spacecraft propulsion systems; pure molybdenum/high-temperature molybdenum wires are used for structural support of aerospace instruments, and the stable performance of high melting point and high-temperature strength ensures the stability of equipment in extreme environments.

Electronic Manufacturing Field

Ultra-fine molybdenum wires are used as integrated circuit leads and semiconductor chip bonding wires; molybdenum rods are used as electrodes for high-power electron tubes and thyristor anodes, meeting the needs of high-precision electronic devices.

Metallurgy and High-Temperature Equipment Field

TZM molybdenum alloy rods are used as large vacuum furnace liners and high-temperature extrusion molds; pure molybdenum/high-temperature molybdenum wires are used as heating elements, with working temperature up to 1600℃. The service life of TZM products is 2-3 times that of pure molybdenum.

Precision Processing Field

Conventional molybdenum wires are used for electrical discharge wire cutting processing, with cutting accuracy up to ±0.005mm, suitable for high-precision processing of molds and precision parts; thin molybdenum rods are used for manufacturing small precision molds.

New Energy Field

Used as electrodes for solar cell coating equipment, support parts for hydrogen fuel cell bipolar plates, and high-temperature components for lithium battery production equipment, improving energy conversion efficiency and equipment reliability.

Medical Equipment Field

Ultra-fine molybdenum wires are used for medical microelectrodes and precision transmission wires of surgical robots; molybdenum rods are used for radiation shielding components of radiotherapy equipment, with good biocompatibility and no magnetic interference.

Research and Special Fields

Used in ultra-high temperature experimental devices, nuclear fusion reaction device components and special material synthesis equipment, meeting the special needs of cutting-edge scientific research for extreme environment materials.

Send Inquiry

Baoji Yunjie has been deeply engaged in the refractory metal field for many years. In addition to molybdenum rods/wires, we can also provide a series of metal rods, wires and customized solutions such as titanium, tungsten, tantalum and zirconium. We have mature production processes and strict quality control systems, and can accurately match product specifications according to customer needs. If you need to obtain product samples, material reports or customized solutions, please feel free to contact us!

Promotion of Industrial-Grade High-Purity Molybdenum / Alloy Molybdenum Rods / Wires

Product specification

Classification

Specification Selection Table and Composition Table

Characteristics

Ultra-High Temperature Resistance

Excellent Mechanical Properties

Efficient Electrical and Thermal Conductivity

Excellent Corrosion and Wear Resistance

Low Vapor Pressure and Vacuum Adaptability

Precise Dimensional Stability

Good Processability

Production Process

Application Fields

Send Inquiry

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