Description
📦 Premium ASTM B708 Tantalum Plate – 99.95% Pure Ta Sheet for Extreme Environments
📘 Product Overview
The ASTM B708 Tantalum Plate is a high-performance refractory metal product engineered for the world’s most demanding applications. Made from 99.95% pure tantalum and produced using advanced electron beam melting (EB melting), these plates are designed to meet the stringent specifications of the ASTM B708 standard. This product is ideal for use in high-temperature, high-corrosion, and high-purity environments, including semiconductors, chemical processing, aerospace, and vacuum furnace systems.
With its exceptional corrosion resistance, high thermal and electrical conductivity, and outstanding formability, our ASTM B708 tantalum plate delivers reliability and longevity even in extreme operating conditions. Each plate undergoes rigorous testing and inspection to ensure consistency, purity, and mechanical strength. Whether for fabricating sputtering targets or lining chemical reactors, this tantalum plate offers an optimal balance of performance and value.
📊 Chemical Composition (ASTM B708 R05200 Grade)
| Element | Symbol | Max. Content (%) |
|---|---|---|
| Tantalum | Ta | ≥ 99.95 |
| Oxygen | O | ≤ 0.015 |
| Nitrogen | N | ≤ 0.010 |
| Carbon | C | ≤ 0.010 |
| Hydrogen | H | ≤ 0.0015 |
| Iron | Fe | ≤ 0.010 |
| Nickel | Ni | ≤ 0.010 |
| Tungsten | W | ≤ 0.050 |
All compositions are validated via ICP-OES and LECO gas analysis, ensuring compliance with ASTM B708 standards and confirming the ultra-high purity required in semiconductor-grade materials.
⚙️ Mechanical Properties (Annealed Tantalum Plate)
| Property | Typical Value |
| Tensile Strength | ≥ 200 MPa |
| Yield Strength (0.2%) | ≥ 140 MPa |
| Elongation at Break | ≥ 30% |
| Vickers Hardness (HV) | 100 – 140 |
| Density | 16.65 g/cm³ |
| Modulus of Elasticity | ~186 GPa |
These mechanical properties allow the ASTM B708 tantalum plate to be easily formed, deep drawn, and CNC-machined without cracking or losing dimensional stability.
🌡️ Physical Properties
| Property | Value |
| Melting Point | 3017 °C |
| Boiling Point | 5458 °C |
| Thermal Conductivity | 57 W/m·K |
| Electrical Resistivity | 13.5 µΩ·cm |
| Coefficient of Expansion | 6.3 × 10⁻⁶ /°C |
| Magnetic Properties | Non-magnetic |
Thanks to these properties, ASTM B708 tantalum plate is used in devices and systems requiring precise thermal and electrical characteristics.
🌿 Key Benefits of ASTM B708 Tantalum Plate
- ✅ Certified to ASTM B708 specifications
- ✅ 99.95% purity verified with full test reports
- ✅ EB-melted microstructure for consistency and strength
- ✅ Resistant to HF, HCl, HNO3, and other acids
- ✅ Non-reactive and biocompatible
- ✅ Customizable formats and machining
🔧 Standard Sizes & Custom Capabilities
| Specification | Options |
| Thickness | 0.1 mm to 50 mm |
| Width | Up to 600 mm |
| Length | Up to 3000 mm |
| Tolerance | ±0.01 mm or custom specification |
| Surface Finish | Polished / Pickled / Bright |
| Product Forms | Sheet, Plate, Strip, Cut Blanks |
Special requirements like laser cutting, slitting, and precision grinding can be accommodated.
🧪 Quality Assurance
Each ASTM B708 tantalum plate is shipped with full quality documentation:
- ✅ Mill Test Certificate (EN10204 3.1)
- ✅ Chemical composition analysis
- ✅ Dimensional inspection reports
- ✅ Ultrasonic testing upon request
- ✅ Compliance with REACH, RoHS, ISO 9001
🏭 Typical Applications
🧪 Chemical Industry
- Corrosive chemical reactor linings
- Acid-resistant tanks and vessels
- Heat exchanger plates
⚡ Electronics and Semiconductors
- X-ray shielding and electron beam equipment
- Sputtering targets for thin film deposition
- Capacitor anode production
🚀 Aerospace and Defense
- High-temperature shields and heat sinks
- Thermionic converter components
- Missile propulsion parts
🔬 Medical and Research
- Surgical instruments
- Medical imaging equipment
- Particle accelerator hardware
In all these industries, ASTM B708 tantalum plate is the preferred choice due to its reliability and exceptional performance.
📦 Packaging & Shipping
We ensure that each ASTM B708 tantalum plate arrives safely with:
- PE film vacuum packaging
- Desiccant bags to reduce moisture
- Edge-protected wooden crates for export
- CIF / FOB / DDP shipping options
- Express delivery via FedEx, DHL, UPS available
🌍 Why Choose Us
With over 15 years of experience in refractory metals, we provide:
- 🔩 Stable inventory and fast delivery
- 📐 Full customization service
- 📋 Traceable certifications and third-party testing
- 🌎 Exports to over 30 countries worldwide
- 🧑🔧 Technical team for instant support
📞 Contact Us
Shaanxi Nickel Titanium Copper Metal Co., Ltd
📧 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 today for a quote, datasheet, or expert consultation. We respond within 24 hours.
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