⚠️ 【IMPORTANT NOTICE】: Images are for illustrative purposes showing measurement points. Proportions in photos do NOT represent actual visual size. Please strictly refer to the numeric parameters (Diameter X Length) in the SKU text.

# 99.95% High-Purity Tungsten Rod / Pure Tungsten Needle / High-Temp Electrode Bar

## 🧭 How to Choose the Right Tungsten Rod

To ensure you select the optimal pure tungsten rod for your research, welding, or industrial project, follow these guidelines:

1. Verify Core Parameters (Diameter X Length):

   • Choose the precise Diameter and Length based on your collet size, welding current, or laboratory setup (e.g., SKU 纯钨棒 1mm*150mm*1根 denotes 1.0mm diameter and 150mm length).

2. Confirm Purity & Requirements:

   • With a purity of 

     $W\ge 99.95\%$

     , this product features the highest melting point of all metals (approx. 3422°C), built for extreme thermal, electrical, and scientific applications.

      

## 📏 Specifications & Material

• 🧪 Material: High-Purity Tungsten (W)

• 🔬 Purity Grade: 

  $W\ge 99.95\%$

   (Industrial / Research Grade)

   

• 📐 Sizing Logic: Diameter X Length (e.g., 1mm * 150mm)

• ✨ Finish: Ground and polished surface, high straightness, burr-free.

• 🌡️ Thermal Limits: Melting point up to 3422°C (6192°F); density approx. 19.25 g/cm³.

## 🛡️ Key Features

• 🔥 Extreme Thermal Resistance: Highest melting point of any metal; maintains structural strength and resists creep under ultra-high heat.

• ⚡ Electronic Emission & Conductivity: Excellent electron emission properties and electrical conductivity, ideal for specialized electrodes.

• 🦾 High Hardness & Density: Extremely dense (close to gold) and hard, offering superb wear and impact resistance.

• 🌊 Chemical Inertness: Highly resistant to acids, alkalis, and chemical reagents at room temperature.

## ⚙️ Applications / Usage

• ⚡ Welding Electrodes: TIG welding tungsten needles, plasma cutting tips, and spot-welding components.

• 🔬 Scientific Research: High-temperature furnace heating elements, mass spectrometer parts, and physics experimental bases.

• 💡 Electronics: Electron tube cathodes, vacuum evaporation boats, and semiconductor supports.

• 🛠️ Industrial Tooling: Wear-resistant pins, high-temperature structural supports, and heavy counterweights.

## 📩 Support & Customization

• 🛠️ Custom Fabrication: We support custom orders for specialized diameters, cut-to-length specs, or specific tolerances.

• 📦 Bulk Wholesale: We welcome large-volume orders worldwide with competitive tiered pricing.

• 🤝 Contact Us First: We value our reputation. If any issues arise (wrong size, damage), please message us via eBay FIRST. We guarantee a solution within 24 hours.