Description
Premium Molybdenum Screws – 99.95% Pure Fasteners for Extreme Applications
At Shaanxi Nickel Titanium Copper Metal Co., Ltd, we specialize in supplying molybdenum screws crafted from ultra-high purity molybdenum (≥99.95%). These screws are engineered to deliver long-lasting mechanical strength, corrosion resistance, and heat tolerance in environments where conventional fasteners fail — including vacuum furnaces, semiconductor fabrication, aerospace systems, and scientific research labs.
🔧 What Are Molybdenum Screws?
Molybdenum screws are threaded metal fasteners manufactured from molybdenum, a refractory metal renowned for its very high melting point (2620°C), low coefficient of thermal expansion, and excellent dimensional stability under extreme thermal stress. They are indispensable in applications that demand both chemical resistance and thermal endurance.
Unlike standard stainless steel or titanium screws, molybdenum fasteners can maintain structural integrity and tight sealing performance at elevated temperatures far above 1000°C, even in high-vacuum or corrosive environments.
🏭 Manufacturing Process
Our molybdenum screws are manufactured through a rigorous process to ensure purity and dimensional accuracy:
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Powder Metallurgy: High-purity molybdenum powder is sintered into dense billets under vacuum.
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Hot and Cold Rolling: Billets are formed into rods through controlled rolling processes.
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Precision CNC Machining: Threads and screw heads are machined using multi-axis lathes.
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Thread Cutting or Rolling: Depending on tolerance class (6g, 6H), we use thread rolling or precision cutting.
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Deburring & Surface Finish: Optional polishing or oxidation is applied to enhance corrosion resistance and reduce friction.
📐 Technical Specifications
| Parameter | Description |
|---|---|
| Material | Molybdenum ≥ 99.95% |
| Standards | ASTM B387, GB/T 3876, DIN 13, ISO 261, ISO 965 |
| Available Threads | M2–M12, UNC/UNF (e.g., ¼-20, #8-32), custom |
| Length Range | 5 mm to 100 mm (customizable) |
| Head Types | Hex head, socket head cap, slotted, pan, custom designs |
| Surface Finish | As-machined, polished, or black oxide |
| Hardness | HV 250–300 |
| Density | 10.2 g/cm³ |
| Melting Point | 2620°C |
| Thermal Conductivity | ~138 W/m·K |
| Electrical Resistivity | 5.3 µΩ·cm |
We also support special thread classes and tolerances (e.g., 6g, 4H), and non-standard dimensions or assembly kits on request.
🧪 Key Properties & Benefits
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✅ Extreme Heat Resistance: Reliable operation at temperatures up to 2000°C
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✅ Low Vapor Pressure: Ideal for ultra-high vacuum (UHV) systems
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✅ Corrosion Resistance: Inert against acids, alkalis, and molten metals
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✅ Structural Stability: Resists thermal deformation over repeated heating/cooling cycles
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✅ Custom-Machinable: Easily tailored to drawing specifications or 3D models
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🔗 Learn more about molybdenum’s mechanical and thermal behavior on Matmatch.
🔬 Applications of Molybdenum Screws
Our molybdenum screws are widely used across a range of high-tech and scientific industries:
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Vacuum Furnaces & Hot Zones: For structural assembly inside heating chambers
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Semiconductor Equipment: Including wafer etching, sputtering, and deposition tools
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Sapphire & Crystal Growth: High-purity, thermally-stable hardware for GaAs, Si, or sapphire crystal pulling
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Aerospace: As part of engine shielding or high-temperature insulation clamps
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Nuclear & Chemical Reactors: Where corrosion and radiation resistance are crucial
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University & National Labs: Vacuum assemblies, sample holders, and chamber seals
📦 Packaging & Shipping
To protect the quality and purity of molybdenum screws, we use the following packaging:
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Vacuum-sealed or anti-static PE bags
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Foam trays or sponge inserts for shock absorption
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Export-grade outer cartons
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Optional desiccants for moisture control
We offer global delivery via FedEx, DHL, UPS, sea, or air freight, with complete export documentation including:
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Commercial invoice
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Packing list
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Certificate of Origin
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Material Test Report (MTR)
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MSDS or ROHS/REACH certification (if required)
🌍 Why Choose Us?
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✅ Over 10 Years of experience in refractory metal machining
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✅ ISO 9001 certified production process
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✅ Fully drawing-based customization
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✅ Professional packaging & on-time export delivery
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✅ Transparent communication in English or Chinese
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✅ Serving clients in 40+ countries from university labs to Fortune 500 factories
Looking for a molybdenum screw with an unusual thread, miniaturized head, or tolerance class? We’re ready to make it.
📘 Material Standards Supported
All screws conform to one or more of the following:
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GB/T 3876 – Chinese molybdenum product standard
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DIN 13 / ISO 261 / ISO 965 – Metric thread systems
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Custom compliance: Available upon customer request
📞 Contact Us
📧 Email: sales@niticu.com
📞 Phone / WeChat / WhatsApp: +86 13335373172
🏭 Factory Address: Baotai Road Industrial Park, High-tech Zone, Baoji City, Shaanxi Province, China
🌐 Website: https://niticu.com
📩 Contact us now for pricing, samples, and expert technical support — we respond within 24 hours.
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