Description
🔩 ASTM B386 Molybdenum Plate – 99.95% Pure Mo Sheet for Vacuum & High-Temperature Applications
🔍 Introduction
ASTM B386 Molybdenum Plate is a high-performance refractory metal product engineered to withstand extreme environments where most conventional materials fail. Manufactured from ≥99.95% pure molybdenum, this plate meets the stringent requirements of ASTM B386, the industry-standard specification governing the composition, mechanical properties, and dimensional tolerances of molybdenum and molybdenum alloy flat-rolled products. With exceptional thermal conductivity, mechanical strength, and corrosion resistance, molybdenum plates are ideal for applications such as vacuum furnaces, sputtering targets, heat shielding, aerospace structures, and chemical processing systems.
If your project demands unmatched thermal resilience and dimensional stability, ASTM B386 Molybdenum Plate offers the performance and consistency required in cutting-edge applications.
⚗️ Chemical Composition (Typical for ≥99.95% Mo)
| Element | Content (wt%) |
|---|---|
| Molybdenum (Mo) | ≥ 99.95% |
| Iron (Fe) | ≤ 0.005% |
| Nickel (Ni) | ≤ 0.002% |
| Silicon (Si) | ≤ 0.003% |
| Aluminum (Al) | ≤ 0.002% |
| Oxygen (O) | ≤ 0.003% |
| Carbon (C) | ≤ 0.010% |
| Nitrogen (N) | ≤ 0.002% |
| Hydrogen (H) | ≤ 0.001% |
The ultra-high purity ensures low vapor pressure, excellent vacuum compatibility, and superior resistance to high-temperature oxidation.
⚙️ Mechanical Properties (Annealed Condition)
| Property | Typical Value |
|---|---|
| Tensile Strength | 550 – 690 MPa |
| Yield Strength (0.2% offset) | ≥ 480 MPa |
| Elongation at Break | 20 – 30% |
| Hardness (HV) | 130 – 170 |
| Density | 10.22 g/cm³ |
| Modulus of Elasticity | 329 GPa |
| Poisson’s Ratio | 0.31 |
Molybdenum’s mechanical integrity under high load and elevated temperatures makes ASTM B386 Molybdenum Plate a structural backbone in thermal systems.
🌡️ Physical Properties
| Property | Value |
|---|---|
| Melting Point | 2620°C |
| Boiling Point | 5560°C |
| Thermal Conductivity | 138 W/m·K @ 20°C |
| Electrical Resistivity | 5.3 μΩ·cm |
| Coefficient of Thermal Expansion | 4.8 μm/m·K @ 20–1000°C |
| Specific Heat Capacity | 250 J/kg·K |
These properties ensure that ASTM B386 Molybdenum Plate remains dimensionally stable and mechanically sound under extreme thermal cycling.
🏭 Manufacturing Standards & Process
All molybdenum plates are processed under strict ASTM B386 protocols, which cover:
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Chemical purity verification via ICP-OES and gas analyzers
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Cold or hot rolling into plate and sheet form
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Precision flattening and stress-relief annealing
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Optional machining, grinding, and chamfering
Grades available under ASTM B386:
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Type 361 – Unalloyed molybdenum
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Type 363 – TZM (Titanium-Zirconium-Molybdenum alloy)
Your product, being ≥99.95% Mo, conforms to Type 361, the most common high-purity molybdenum plate.
📏 Available Dimensions & Tolerances
| Parameter | Range |
|---|---|
| Thickness | 0.2 mm – 50 mm |
| Width | Up to 600 mm (standard), 1000 mm (custom) |
| Length | Up to 2000 mm |
| Flatness Tolerance | ≤ 0.1 mm per 300 mm |
| Surface Condition | Hot-rolled / Cold-rolled / Polished / Chemically Cleaned |
| Edge Options | Square / Chamfered / Deburred |
Custom machining, hole drilling, step machining, and waterjet cutting are available upon request.
🧪 Testing & Certification
Each batch of ASTM B386 Molybdenum Plate undergoes:
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✅ Ultrasonic Testing (UT) for internal defects
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✅ Surface Finish Inspection (Ra ≤ 1.6 μm upon request)
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✅ Dimensional Accuracy Verification
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✅ Hardness and Tensile Testing
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✅ ICP-MS Chemical Analysis
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✅ EN 10204 3.1 Mill Test Certificate
Additional third-party testing (SGS, TUV, BV) is available upon request.
📦 Packaging & Shipping
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Vacuum-sealed plastic wrap + PE film
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Bubble wrap cushioning
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Export-grade fumigation-free wooden crates
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Labels include heat number, grade, size, and batch code
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Air, sea, or courier delivery (FOB/CIF/DDP)
Plates are laser-engraved or stamped with product info for full traceability.
🧰 Applications of ASTM B386 Molybdenum Plate
🔧 1. Vacuum Furnace Construction
Used for hot zones, heating elements, and shielding structures. The low vapor pressure ensures clean vacuum operation.
🚀 2. Aerospace Engineering
For jet nozzles, thermal shields, and structural reinforcement in extreme-temperature regions.
🧪 3. Semiconductor & Electronics
Molybdenum plates are used as baseplates and components in PVD coating systems, sputtering targets, and CVD reactors.
⚙️ 4. Glass & Ceramics Industry
Plates and liners used for sintering trays, support platforms, and radiation shielding during high-temp firing.
💎 5. Power Generation
Applications in nuclear energy, fusion experiments, and solar thermal towers due to its excellent neutron resistance.
🏆 Why Choose Our ASTM B386 Molybdenum Plate?
✅ Over 15 years of refractory metal experience
✅ Produced under ISO 9001 certified processes
✅ 100% virgin raw material – no recycling
✅ Micron-level flatness and tolerances
✅ Surface roughness Ra < 1.6 μm available
✅ 24–48 hour turnaround for RFQs
✅ Global clients in over 40 countries
Whether you’re designing a vacuum heat treatment furnace or sourcing critical parts for a semiconductor chamber, our ASTM B386 Molybdenum Plate provides the strength, purity, and consistency you demand.
🌐 External Resources
📩 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
📩 Contact us now for pricing, datasheets, or customized technical support — our team will respond within 24 hours.
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