Hafnium Metal Wire, Hf wire
Hafnium Wire is precision-crafted from 99.9% pure hafnium metal using advanced cold-drawing techniques, ensuring superior conductivity and corrosion resistance. A key industrial use of hafnium welding wire is in plasma-cutting electrodes, where its high melting point (2,233°C) and durability optimize performance in aerospace and metal fabrication. At Princeton Powder, we supply customized hafnium wire in diameters from 0.1 mm to 5 mm, offering nuclear-grade purity (ASTM B737 compliant), fast delivery, and competitive pricing for global clients.
Material | Hafnium |
Purity | 99.9%, Hf+Zr≥99.95%, Zr≤2.5% |
Dimension | 0.01-10mm or Customized |
CAS | 7440-58-6 |
Surface | Polished,Alkali Cleaning,Chemical Cleaning |
Standard | AWS A5.24/A5.24M, ASME SFA-5.24/SFA-5.24M |
Certification | ISO9001 |
Description of Hafnium wire
Hafnium (Hf) is a lustrous, silvery, and ductile metal renowned for its exceptional corrosion resistance and chemical similarity to zirconium. A critical material in the atomic energy industry, hafnium is widely used in nuclear control rods due to its high neutron absorption cross-section. In the electrical industry, ultra-pure hafnium serves as an efficient cathode material for X-ray tubes, leveraging its superior electron emission properties.
Hafnium wire is precision-drawn from high-purity (99.9%+) hafnium metal, ensuring optimal performance in extreme environments. With its exceptional electron emission capability and extremely high melting point (2,233°C), hafnium wire is the preferred plasma emitter for industrial plasma cutting machine electrodes, offering unmatched durability and arc stability. Additionally, hafnium is a vital alloying element in heat-resistant superalloys, enhancing the properties of tungsten, molybdenum, and tantalum-based alloys for aerospace and high-temperature applications.
We supply premium-grade hafnium wire (Hf Wire) in customized diameters (0.1mm–6mm), tailored to meet ASTM B737 and AMS 2248 standards. Our hafnium wire is ideal for nuclear, semiconductor, and plasma cutting industries, with batch-certified quality and fast global delivery. Request a quote today for high-purity hafnium wire solutions
- Formula: Hf
- Density: 13.31g/cm3
- Melting point: ~2227℃
- Boiling point: ~4602℃
- CAS: 7440-58-6
Hafnium wire specifications
Purity | Hf+Zr≥99.9%, Zr≤0.5% or Customized | ||
Dimensions | Single Wire | Coil Wire | According to customer’s requirements. |
1.07, 1.2, 1.5 2.0mm diameter × 1000mm (Straight Wire) | 1.07, 1.2, 1.5, 1.6, 2.0 mm dia. x L φ0.1~3mm × Lmm | ||
Shape | It can be straight, in coils, or on spools. | ||
Hafnium wire compositions
| Element | Concentration(ppm,wt) | Element | Concentration(ppm,wt) |
| Li | < 0.005 | Pd | < 0.05 |
| Be | < 0.001 | AÇ | < 0.05 |
| B | < 0.005 | Cd | < 0.05 |
| C | – | In | < 0.005 |
| N | – | Sn | < 0.01 |
| O | – | Sb | < 0.01 |
| F | < 0.05 | Te | < 0.05 |
| Na | < 0.01 | I | < 0.05 |
| MÇ | < 0.01 | Cs | < 0.005 |
| Al | 1.8 | Ba | < 0.005 |
| Si | 2.7 | La | < 0.005 |
| P | 0.006 | Ce | < 0.005 |
| S | 0.26 | Pr | < 0.005 |
| Cl | 0.02 | Nd | < 0.005 |
| K | < 0.05 | Sm | < 0.005 |
| Ca | < 0.05 | Eu | < 0.005 |
| Sc | <= 6 | Gd | < 0.005 |
| Ti | 0.13 | Tb | < 0.005 |
| V | < 0.005 | Dy | < 0.005 |
| Cr | 0.10 | Ho | < 0.005 |
| Mn | 0.06 | Er | < 0.005 |
| Fe | 1.6 | Tm | < 0.005 |
| Co | 0.02 | Yb | < 0.005 |
| Ni | 0.15 | Lu | < 0.005 |
| Cu | 0.03 | Hf | Matrix |
| Zn | < 0.05 | Ta | < 5 |
| Ga | < 0.01 | W | 0.02 |
| Ge | < 0.01 | Re | < 0.05 |
| As | < 0.005 | Os | < 0.01 |
| Se | < 0.05 | Ir | < 0.05 |
| Br | < 0.005 | Pt | < 0.2 |
| Rb | < 0.005 | Au | < 0.05 |
| Sr | < 0.01 | HÇ | < 0.05 |
| Y | < 0.01 | Tl | < 0.005 |
| Zr | – 0.81 wt% | Pb | < 0.005 |
| Nb | < 1 | Bi | < 0.005 |
| Mo | 1.0 | Th | < 0.001 |
| Ru | < 0.005 | U | 0.002 |
| Rh | < 0.01 |
Hafnium Wire Application
Nuclear Industry: Neutron-absorbing control rods.
Aerospace: Rocket nozzles, high-temperature alloys.
Electronics: Sputtering targets, plasma electrodes.
Chemical Processing: Corrosion-resistant reactor linings.
Research: High-energy physics, thin-film deposition.
Hafnium wire scholar article
Development in the Production of Hafnium Wire Conforming to ASTM B737 Standard
Abstract:The paper reports the results of studies conducted on the structure, mechanical, and corrosion properties of the experimental samples of wires manufactured in compliance with the ASTM B737 standard specification for hot rolled and/or cold-drawn hafnium rods and wire. Currently, CMP can manufacture wires with a diameter of 1 mm or more from hafnium ingots of its own production, in compliance with the ASTM B737 standard.