High-Temperature Special Molybdenum Crucibles - Custom Forming, Extreme Temperature Resistant

Molybdenum crucibles are core container components specially designed for extreme working conditions such as high-temperature melting, sintering, and evaporation. They are made of high-purity molybdenum materials through precision forming processes. Combining the material advantages of molybdenum (high melting point, high strength at high temperature, strong chemical inertness) with the functional requirements of crucibles (stable holding, uniform heat conduction), they break through the limitations of traditional ceramic and graphite crucibles that are prone to cracking and contamination in ultra-high temperature environments. Whether for precious metal smelting, semiconductor material synthesis, or high-temperature experimental research, molybdenum crucibles can ensure material purity and process stability with their excellent high-temperature resistance and customized structure, making them indispensable key equipment accessories in the field of high-end material preparation.

Product specification

Product Parameters

Product Information

Parameter Category	Conventional Range	Customization Precision	Applicable Scenarios
Cylindrical Crucible	Inner diameter: 5-500mm, Height: 10-800mm, Wall thickness: 0.2-10mm	Inner diameter tolerance: ±0.1mm, Roundness: ≤0.1mm, Wall thickness tolerance: ±0.03mm	Precious metal smelting, Semiconductor material melting
Square Crucible	Inner side length: 10mm-300mm, Height: 15mm-500mm, Wall thickness: 1.5mm-20mm	Side length tolerance: ±0.1mm, Perpendicularity: ≤0.15mm/m, Wall thickness uniformity: ≥95%	High-temperature sintering experiment, Bulk material preparation
Special-Shaped Crucible	Customized according to 2D/3D drawings (e.g., with diversion groove, stepped, combined type)	Key dimension tolerance: ±0.05mm, Geometric tolerance in line with GB/T 1184-2008	Special equipment matching, Special process requirements
High-Temperature Performance	Mo1: Long-term use ≤1600℃; Mo-La: Long-term use ≤1800℃	Heat preservation at 1800℃ for 200h, Creep rate ≤0.5%	Extreme high-temperature smelting, Continuous production working conditions
Inner Wall Quality	Smooth, no sand holes, no cracks, no impurity precipitation	Surface roughness Ra ≤0.8μm, Cleanliness Class 100	High-purity material preparation, Electronic-grade material processing

Product Name	Pure Molybdenum Crucible, High-Temperature Molybdenum Crucible, Custom Special-Shaped Molybdenum Crucible
Brand Name	Yunjie
Model	Mo1 / Mo-La (Material model matched on demand)
Core Material	High-Purity Molybdenum (Mo1), High-Temperature Molybdenum (Mo-La)
Core Process	Spinning Forming, Stamping Forming, Forging + Machining, Vacuum Annealing for Stress Relief
Purity Standard	Pure molybdenum crucible
Basic Density	10.2g/cm³
Core Advantages	Resistant to ultra-high temperature of 2600℃, strong creep resistance, smooth and impurity-free inner wall, high customization adaptability, excellent chemical stability
Surface Condition	Vacuum annealed matte surface, precision polished bright surface, sandblasted non-slip surface
Shape Specifications	Cylindrical, square, flat-bottomed, round-bottomed, covered type (all sizes customized on demand)
Customization Service	Supports 2D/3D drawing customization, sample reproduction, wall thickness optimization, special structure processing
Minimum Order Requirement	Sample order

Classification

Classification by Forming Process

•Spun Molybdenum Crucible: Formed by CNC spinning process, with uniform wall thickness and good integrity. Suitable for conventional cylindrical specifications, such as small smelting crucibles for laboratories.
•Stamped Molybdenum Crucible: Processed by precision stamping equipment, with high production efficiency. Suitable for small-size and large-batch requirements, such as crucibles for electronic component sintering.
•Forged Molybdenum Crucible: Made by forging + machining, with higher density and excellent high-temperature strength. Suitable for large-size, thick-walled, and extreme working conditions, such as crucibles for aerospace material smelting.
•Welded Combined Molybdenum Crucible: Customized for complex structures, formed by seamless welding combination, such as covered and multi-chamber crucibles, adapting to special process requirements.
Classification by Material Characteristics

•Pure Molybdenum Crucible (Mo1): High purity ensures chemical inertness, and the inner wall is free of impurity contamination. Suitable for processing high-purity materials such as electronic-grade materials and medical device raw materials.
•High-Temperature Molybdenum Crucible (Mo-La): Rare earth lanthanum oxide is added to optimize high-temperature performance. It can be used for a long time at 1800℃ without deformation or cracking, making it the first choice for high-temperature smelting in metallurgy and aerospace fields.
Classification by Application Scale

•Laboratory-Grade Molybdenum Crucible: Small size and high precision, suitable for scientific research experiments and small-batch trial production, such as crucibles for material research in universities.
•Industrial-Grade Molybdenum Crucible: Medium and large specifications, balancing strength and durability, suitable for factory batch production, such as crucibles for precious metal extraction.
•Military-Grade Molybdenum Crucible: Adaptable to extreme working conditions, with high strength and high stability, used for the preparation of special materials in aerospace and national defense military industries.

Customization Service and Composition Guarantee

Whole-Process Customization Service System

Authoritative Chemical Composition Table

Service Link	Service Content	Customer Value
Demand Analysis	2D/3D drawing interpretation, working condition temperature/medium research, material purity requirement confirmation	Accurately match process requirements, avoid material and working condition mismatch
Scheme Customization	Material selection suggestion, wall thickness optimization design, process route planning, cost accounting	Improve product durability, control procurement and use costs
Sample Trial Production	Rapid processing of single sample, high-temperature performance test, dimensional accuracy inspection	Verify scheme feasibility, avoid risks in batch use in advance
Bulk Production	Standardized production line processing, full-process quality control, batch performance traceability	Ensure the consistency of bulk products, stably support the production process
After-Sales Support	Usage and maintenance guidance, damage analysis and optimization suggestions, regular return visits	Extend product service life, improve customer usage experience

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%

Characteristics

Extreme High-Temperature Resistance

Molybdenum material has a melting point of 2620℃. The Mo-La model can be used for a long time at 1800℃ without creep or cracking, far exceeding traditional crucibles such as ceramics (≤1200℃) and graphite (≤1500℃).

High-Purity Material Compatibility

High-purity molybdenum material (≥99.95%) has strong chemical inertness, no impurity precipitation at high temperature, and the inner wall is smooth and non-sticky, ensuring material purity and adapting to the preparation of electronic-grade and medical-grade materials.

Superior Structural Performance

Through forging/spinning + vacuum annealing process, the room-temperature tensile strength is ≥750MPa, and the mechanical properties are stable at high temperature. It has strong impact resistance and deformation resistance, and its service life is 3-8 times that of traditional crucibles.

Precise Customization Capability

Supports a minimum order of 1 piece, adapting to all specifications including cylindrical, square, and special-shaped. The key dimension tolerance is controlled within ±0.05mm, perfectly matching special equipment and special processes.

Wide Chemical Compatibility

Stable in non-oxidizing acids, alkaline solutions, and most molten metals (such as gold, silver, copper, aluminum), no chemical reactions occur, reducing material loss and pollution.

Uniform Heat Conduction

Excellent and uniform thermal conductivity, avoiding material coking or crucible cracking caused by local overheating, improving process stability and product qualification rate.

Production Process

High-Purity Raw Material Preparation: Select molybdenum concentrate with purity above 99.97%, extract high-purity molybdenum powder through roasting and hydrogen reduction processes, and press it into high-density molybdenum billets to ensure no impurity contamination of raw materials.
Billet Strengthening Treatment: The molybdenum billet is subjected to hot rolling and forging processes to refine grains, improve material density and uniformity, and lay a high-strength foundation for subsequent forming.
Precision Forming Processing: Select spinning, stamping or machining processes according to specifications. CNC equipment precisely controls dimensions to ensure regular crucible shape and uniform wall thickness.
Vacuum Annealing Treatment: Put the formed crucible into a 1200℃ vacuum annealing furnace to eliminate processing internal stress, improve high-temperature stability and creep resistance, and prevent deformation and cracking during use.
Finishing and Inspection: Improve surface quality through inner wall polishing and deburring; complete full-item inspection using ultrasonic flaw detection (crack detection), three-coordinate measurement (dimensional accuracy), and material analysis (purity).
Anti-Oxidation Packaging and Delivery: Vacuum-sealed packaging to prevent oxidation during transportation and storage. Attach material reports and high-temperature performance test data, and complete delivery after accurately marking specification parameters.

Application Fields

Aerospace Field

Used for melting and forging of special materials such as spacecraft titanium alloys and high-temperature alloys. It can withstand extreme high temperatures, ensuring uniform material composition and stable performance.

Electronic Semiconductor Field

Used for melting and purification of high-purity silicon and germanium materials for semiconductor chips. The high-purity characteristics of molybdenum crucibles avoid material contamination and improve chip yield.

Metallurgical Precious Metal Field

Used for smelting and purification of precious metals such as gold, silver, and platinum group. The inner wall is non-sticky and has uniform heat conduction, reducing precious metal loss and improving extraction efficiency.

Medical Device Field

Used for high-temperature sintering of implant materials such as medical titanium alloys and cobalt-chromium alloys. It ensures material biocompatibility and mechanical properties, meeting medical-grade standards.

New Energy Field

Used for high-temperature synthesis of lithium battery cathode materials (such as ternary materials). It can withstand sintering temperatures above 1200℃, ensuring stable crystal structure of the materials.

Scientific Research and Experiment Field

Used for high-temperature melting and sintering experiments in material science research in universities and research institutions. Small-size customization adapts to the needs of various experimental equipment.

Send Inquiry

Baoji Yunjie (Yunjie) – a professional provider of customized molybdenum crucible solutions, boasting years of experience in precision processing of molybdenum products. We can efficiently cater to diverse needs, ranging from small laboratory samples to large-scale industrial production. Whether you require molybdenum crucibles of standard specifications, or customized products with special structures for extreme working conditions, you only need to provide your requirements or drawings – we will create highly adaptable molybdenum crucible products tailored to you! Feel free to contact us at any time to start our cooperation.

High-Temperature Special Molybdenum Crucibles - Custom Forming, Extreme Temperature Resistant

Product specification

Classification

Customization Service and Composition Guarantee

Characteristics

Extreme High-Temperature Resistance

High-Purity Material Compatibility

Superior Structural Performance

Precise Customization Capability

Wide Chemical Compatibility

Uniform Heat Conduction

Production Process

Application Fields

Send Inquiry

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