Description
🔹 Expert Molybdenum Tube – 99.95% Pure Mo361 Tube
🧾 Product Overview
Our Molybdenum Tube is a high-purity hollow component made from 99.95% pure molybdenum, produced in accordance with ASTM B387 Type 361 for raw material standards. While ASTM B387 covers rods and wires, our tubes are custom-fabricated from the same material to meet the requirements of applications in high-temperature, vacuum, and corrosive environments.
These Mo361 tubes are engineered using advanced processing methods like vacuum arc melting, extrusion, and cold working, offering outstanding thermal stability, dimensional precision, and chemical resistance. Available in custom sizes and wall thicknesses, this molybdenum tubing is ideal for aerospace, vacuum furnace, medical, semiconductor, and chemical industries.
📊 Technical Specifications & Chemical Composition
| Property | Specification |
|---|---|
| Product Name | Molybdenum Tube (Mo361 Tube) |
| Material Grade | ASTM B387 Type 361 (Raw Material) |
| Purity | ≥ 99.95% |
| Density | 10.2 g/cm³ |
| Melting Point | 2610°C |
| Recrystallization Temp | ~1200°C |
| Tensile Strength | ≥ 620 MPa |
| Elongation | ≥ 15% |
| Electrical Resistivity | 5.5 µΩ·cm |
| Thermal Conductivity | 138 W/m·K |
| Hardness (HV) | 140–160 |
🧪 Chemical Composition (Typical by ICP-OES / LECO):
| Element | Content (wt%) |
| Mo | ≥ 99.95 |
| Fe | ≤ 0.005 |
| Ni | ≤ 0.002 |
| Si | ≤ 0.003 |
| C | ≤ 0.010 |
| O | ≤ 0.005 |
All tubes are fabricated from material tested to meet Type 361 molybdenum requirements, ensuring purity and reliability for advanced applications.
⚙️ Manufacturing Process
The production of our molybdenum tubes follows a series of precise and controlled steps:
- Vacuum Arc Melting (VAM) – Ensures chemical uniformity and low impurities.
- Extrusion & Piercing – Forms seamless tube shapes with uniform wall thickness.
- Cold Working – Enhances strength and grain uniformity.
- Stress Relieving / Annealing – Minimizes internal stress for structural stability.
- Precision Finishing – Achieves required OD, ID, and surface condition.
Each tube features a smooth bore and outer wall, with tight tolerance control for vacuum and high-pressure performance.
📐 Available Sizes & Customization
| Parameter | Range |
| Outer Diameter | 2 mm – 120 mm |
| Wall Thickness | 0.3 mm – 10 mm |
| Length | Up to 2000 mm |
| Tolerance | ±0.01 mm or custom |
| Surface Finish | Polished / Chem Cleaned |
We support:
- 🎯 Scientific-grade tolerance machining
- 🛠️ Pre-machined flanges or threaded sections
- 🔩 Optional end caps and connectors
🌡️ Key Performance Benefits
The Mo361 molybdenum tube stands out for:
- ✅ 99.95% purity – Minimal contamination risk
- ✅ Excellent thermal resistance – Use in >2000°C environments
- ✅ Stable microstructure – Low deformation at high temp
- ✅ High conductivity – For electrical and thermal use
- ✅ Low outgassing – Compatible with UHV systems
- ✅ Chemical resistance – Tolerates acids, halogens, and reactive gases
Compared to TZM or alloyed molybdenum, this pure Mo361 tubing exhibits superior cleanliness and low impurity migration.
🏭 Industrial Applications
Our molybdenum tubes are used in the following:
- 🔬 Vacuum Furnaces: Protective sheaths, heating sleeves
- 🛰️ Aerospace: Heat sink components, insulation sleeves
- ⚡ Electronics: Power devices, contact tubes
- 🧪 Semiconductors: Chamber liners, sputtering components
- ⚗️ Chemical Processing: Acid lines, heat exchangers
- 🧬 Medical Isotope Production: Radiation shielding sleeves
🛠️ Custom Services
We offer full fabrication:
- 📐 OD/ID customization via CNC
- ✂️ Laser or waterjet cut-to-length services
- 🔩 Threading, flange welding, or slotting
- 🎨 Surface passivation or polishing
We also support CWSR molybdenum tubing per request.
📦 Packaging & Delivery
Every Mo361 tube is securely packed:
- 📦 Vacuum sealing + foam
- 🚚 Heavy-duty wooden crates
- 🧾 Docs: MTC, CO, MSDS included
- 🌍 Global express or freight options
📄 Documentation & Testing
Included with each batch:
- ✅ EN10204 3.1 Certificate
- ✅ ICP / LECO analysis report
- ✅ Dimensional tolerance sheet
- ✅ ASTM B387 (raw material) compliance letter
- ✅ Optional SGS/BV verification
❓ Frequently Asked Questions (FAQs)
Q1: Does this tube meet ASTM B387?
A1: The material conforms to ASTM B387 Type 361. However, the tube form is fabricated to custom specs as the standard does not cover tubing.
Q2: Are these seamless?
A2: Yes, all our molybdenum tubes are seamless for optimal high-temp integrity.
Q3: Is it vacuum compatible?
A3: Absolutely. All products are UHV-compatible with low outgassing.
Q4: Do you offer sample pieces?
A4: Yes, we can provide small samples with MOQ depending on dimensions.
Q5: Can you supply TZM molybdenum tubes?
A5: Yes. We offer Type 364 TZM tubing on demand.
📩 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
📩 Request a quote or sample today — we respond within 24 hours!
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