Description
🔹 Premium Molybdenum Rod – 99.95% Purity, ASTM B387 Certified
Molybdenum rod is a high-performance metallic material engineered for demanding industrial, scientific, and high-temperature environments. Manufactured to ASTM B387 specifications and featuring a certified purity of ≥99.95%, molybdenum rods are widely used in aerospace components, vacuum furnaces, semiconductor tooling, medical imaging, and nuclear shielding. They offer exceptional strength, dimensional stability, corrosion resistance, and thermal conductivity.
At Shaanxi Nickel Titanium Copper Metal Co., Ltd., we supply molybdenum rods made via powder metallurgy or vacuum arc melting, available in various diameters and lengths, with custom machining options for tight tolerances and specialized finishes. Every rod is traceable by batch, supported by a full Certificate of Analysis (COA), and inspected for dimensional accuracy and purity compliance.
🧪 Technical Specifications & Chemical Composition
Our molybdenum rods are manufactured in accordance with ASTM B387, typically falling under Type 361 or Type 364 grades. These rods are produced using high-purity molybdenum powder (≥99.95%) that is cold isostatically pressed, vacuum sintered, forged or swaged, then ground or polished to the desired dimensions.
✅ Typical Chemical Composition (wt%)
| Element | Symbol | Max. Limit (wt%) |
|---|---|---|
| Molybdenum | Mo | ≥ 99.95% |
| Oxygen | O | ≤ 0.008% |
| Carbon | C | ≤ 0.010% |
| Iron | Fe | ≤ 0.005% |
| Nickel | Ni | ≤ 0.002% |
| Silicon | Si | ≤ 0.003% |
| Aluminum | Al | ≤ 0.002% |
| Nitrogen | N | ≤ 0.003% |
🔧 Physical & Mechanical Properties
| Property | Value / Range |
| Density | ≥10.2 g/cm³ |
| Melting Point | 2620 °C (4748 °F) |
| Thermal Conductivity | 138 W/m·K at 20 °C |
| Electrical Resistivity | ~5.3 μΩ·cm at 20 °C |
| Tensile Strength | 500–900 MPa (varies by dia) |
| Elongation at Break | 10–30% |
| Hardness (HV) | 180–220 |
| Modulus of Elasticity | 330–350 GPa |
These properties ensure molybdenum rod performs reliably in extreme temperature, vacuum, and corrosive environments.
⚙️ Manufacturing Process
Producing a high-quality molybdenum rod requires precise control of powder metallurgy and thermomechanical processes. We use the following general workflow:
- Raw Material Selection – Certified molybdenum powder with ≥99.95% purity
- Cold Isostatic Pressing – Uniform compacting at >200 MPa
- Vacuum Sintering – High-temperature sintering at 2000–2200 °C in vacuum
- Swaging / Forging – Reduction and densification
- Annealing – Grain refinement and stress relief
- Centerless Grinding or Machining – Achieving dimensional precision
- Surface Finishing – Polishing or pickling, depending on customer requirements
- Inspection & Certification – Dimensional checks, purity analysis, COA issuance
Our factory supports large-diameter molybdenum rod production (up to 150 mm) and tight tolerance machining (±0.01 mm).
📏 Available Sizes & Customization
We provide molybdenum rods in the following standard and customized dimensions:
- Diameter Range: 3 mm – 150 mm
- Length: Up to 2000 mm (standard) or customized
- Tolerances: As per ASTM B387 or tighter upon request
- Surface Finish: Polished, turned, pickled, or machined
🧩 Custom Options
- Centerless ground rods for vacuum furnace applications
- Rods with threaded ends or drilled holes
- Non-standard lengths or diameter-to-length ratios
- Mirror finish or Ra < 0.2 μm surface finish
- Ultrasonic tested rods for aerospace or nuclear use
Minimum order quantity for custom molybdenum rods is typically 1 piece.
we also provide Molybdenum Granules
📦 Applications of Molybdenum Rod
Due to its high melting point, corrosion resistance, and mechanical strength, molybdenum rod is indispensable in multiple sectors:
🔬 1. Vacuum Furnaces
Used as heating elements, support rods, and connectors in high-temperature vacuum furnaces. Molybdenum’s low vapor pressure ensures structural stability and minimizes contamination.
✈️ 2. Aerospace and Defense
Components in satellite propulsion, thermal shielding, and high-stress structural parts. Molybdenum offers high strength-to-weight ratio and thermal endurance.
🧪 3. Semiconductor & Electronics
Ideal for ion implantation parts, sputtering targets, wafer carriers, and high-precision tooling. Excellent conductivity and compatibility with UHV systems.
🏥 4. Medical Imaging
X-ray and CT scanners use molybdenum rods as rotating anode shafts and radiation shielding parts due to Mo’s radiation absorption and heat dissipation.
⚙️ 5. Nuclear Engineering
Used in nuclear fuel cladding, control rods, and reactor components due to neutron absorption properties and dimensional stability.
🧱 6. Glass and Ceramics
Molybdenum rods are immersed in molten glass for heating or as electrodes due to their oxidation resistance under controlled environments.
🧾 Standards & Compliance
Our molybdenum rods are produced in full compliance with:
- ASTM B387 – Type 361 / Type 364 (sintered or swaged rod)
- ISO 9001 certified production
- RoHS & REACH compliant
- EN10204 3.1 / 3.2 certificate available on request
- Ultrasonic testing (per AMS 2631 / ASTM E213) for critical applications
We also provide third-party inspection reports upon request (SGS, BV, etc.).
📄 Packaging & Delivery
Each molybdenum rod is packaged securely to avoid contamination, oxidation, or deformation:
- Vacuum-sealed PE bags (small rods)
- Paper-wrapped + foam cushioned + export-grade wooden box
- Ends protected with plastic caps
- Desiccants or inert gas atmosphere (for ultra-clean applications)
📦 Shipping Info
- Air freight (DHL, FedEx, UPS) for fast delivery
- Sea freight for bulk orders
- Delivery time: 5–15 business days depending on order volume and customization
❓ Frequently Asked Questions (FAQ)
Q1: What’s the difference between sintered and forged molybdenum rods?
Sintered rods are directly used after vacuum sintering; forged rods undergo swaging or rolling for higher density and strength.
Q2: Can I order 1 piece for prototyping?
Yes, we support MOQ = 1 for R&D or test applications.
Q3: Do you provide custom machining services?
Yes. We offer threading, slotting, drilling, and CNC machining.
Q4: How do you test the purity of molybdenum rods?
Via ICP-OES for trace elements and LECO for oxygen, nitrogen, carbon content.
Q5: Are certificates included?
Yes, COA, dimensional report, and optional third-party inspection documents.
Q6: Do you support express delivery?
Yes, we ship globally using DHL, UPS, or FedEx.
📝 Conclusion
Molybdenum rod is a critical material for high-performance environments where strength, conductivity, and purity are paramount. With ≥99.95% purity and compliance to ASTM B387, our molybdenum rods offer unmatched quality and reliability.
Whether you require custom diameters, mirror-finish surfaces, or high-precision machining, we provide tailored solutions for your specific project requirements.
Backed by professional production, strict quality control, and responsive global support, Shaanxi Nickel Titanium Copper Metal Co., Ltd. is your reliable source for premium-grade molybdenum rods.
📩 Contact Us
📧 Email: sales@niticu.com
📞 Phone / WhatsApp / WeChat: +86 13335373172
🏭 Factory: Baotai Road Industrial Park, High-tech Zone, Baoji City, Shaanxi, China
🌐 Website: https://niticu.com
📩 Reach out now for datasheets, quotes, and expert technical support – we reply within 24 hours.
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