

HfNbTaTiZr High Entropy Alloy (HEA) Powder is a fine and homogeneous high-temperature powder material composed of a combination of hafnium (Hf), niobium (Nb), tantalum (Ta), titanium (Ti), and zirconium (Zr). Stanford Advanced Materials (SAM) has rich experience in manufacturing and supplying high-quality HfNbTaTiZr High Entropy Alloy Powder.
Related products: CoCrFeNiMo High-Entropy Alloy (HEA) Spherical Powder, TiZrHfVNb High-Entropy Alloy (HEA) Spherical Powder
HfNbTaTiZr High Entropy Alloy (HEA) Powder is a fine and homogeneous high-temperature powder material composed of a combination of hafnium (Hf), niobium (Nb), tantalum (Ta), titanium (Ti), and zirconium (Zr). Stanford Advanced Materials (SAM) has rich experience in manufacturing and supplying high-quality HfNbTaTiZr High Entropy Alloy Powder.
Related products: CoCrFeNiMo High-Entropy Alloy (HEA) Spherical Powder, TiZrHfVNb High-Entropy Alloy (HEA) Spherical Powder
HfNbTaTiZr High Entropy Alloy Powder is a complex refractory powder material with high strength, good ductility, thermal stability, and corrosion resistance. It has 2 refractory elements: Ta and Nb, which improve the highest working temperature to even 1600℃. Refractory metals are easily oxidized when contacting O2 at high temperatures. Adding Ti can protect this HEA deeply oxidized in the air by forming a TiO2 surface layer. Zr and Hf enhance the alloy’s strength, stability, resistance to deformation, and high-temperature stability.
Chemical Composition
Element |
Hf |
Nb |
Ta |
Ti |
Zr |
Content (%) |
19.5~20.5 |
19.5~20.5 |
19.5~20.5 |
19.5~20.5 |
19.5~20.5 |
Physical Properties
Particle size |
0-25, 15-53, 53-150, or custom made |
Density |
8.5~11 g/cm³ |
Melting point |
>2000 ℃ |
Working Temperature |
1200~1600 ℃ |
Category |
HfNbTaTiZr Powder |
TiZrHfVNb Powder |
CoCrFeNiMo Powder |
Composition |
Refractory metals (Hf/Ta/Nb) |
Lightweight refractory (Ti/Zr/V) |
Transition metals (Co/Cr/Fe/Ni) |
Phase Structure |
BCC |
BCC |
FCC |
Tap Density |
4.5-5.0 g/cm³ |
3.8-4.2 g/cm³ |
4.8-5.2 g/cm³ |
Room Temp. Strength |
1200-1500 MPa |
900-1100 MPa |
800-1000 MPa |
Fracture Toughness |
15-25 MPa·m½ |
20-35 MPa·m½ |
40-60 MPa·m½ |
Radiation Resistance |
Excellent (anti-swelling) |
Good |
Poor (Ni/Co activation) |
Biocompatibility |
Limited (Ta/Nb for medical use) |
Excellent (non-toxic) |
Poor (Cr/Ni ion release) |
Primary Uses |
Nuclear reactor components, aerospace TPS |
Biomedical implants, aerospace fasteners |
Chemical wear parts, mold steel alternatives |
Our HfNbTaTiZr High Entropy Alloy Powder is carefully handled during storage and transportation to preserve the quality of our product in its original condition.