MATERIAL PROFILE

Nb-1%Zr Functions

Nb1Zr rod
Nb1Zr tube

The Nb-1Zr alloy (niobium-1% zirconium) is a niobium-based alloy containing 1% zirconium. It possesses a high melting point—approximately 2410 ± 10°C—allowing it to maintain a relatively stable physical state in high-temperature environments. With a density of approximately 8.57 g/cmsup>3 and a thermal conductivity of 24.2 BTU/(hr)(ft)sup>2(°F/ft) at 25°C, its favorable thermal conductivity offers advantages in applications requiring heat dissipation or heat exchange.

Performance Characteristics:
Mechanical Properties: The addition of zirconium to niobium enhances the alloy's strength without compromising its ductility or workability, resulting in an excellent balance of strength and toughness.

Corrosion Resistance: Zirconium improves the alloy's resistance to oxidation and corrosion by alkali metals, providing good resistance against acids, alkalis, and salts, as well as high-temperature, high-pressure water and steam (300–400°C).

Other Properties: It features a low thermal neutron capture cross-section, strong resistance to liquid metal corrosion, good thermal conductivity, a high melting point, strong electron emission capabilities, and gas-absorbing properties; it is utilized in the nuclear energy and high-pressure sodium lamp industries.

By precisely controlling the chemical composition, the Nb-1Zr alloy achieves an optimal balance of strength, corrosion resistance, and workability, meeting the rigorous demands of various fields.

Nb-1%Zr Chemical Composition

Element Content(%)
Zr 0.8~1.2
C ≤0.01
N ≤0.01
O ≤0.025
H ≤0.0015
Ta ≤0.5
Fe ≤0.01
Si ≤0.005
W ≤0.05
Ni ≤0.005
Mo ≤0.05
Hf ≤0.02
Ti ≤0.03

Nb-1%Zr Typical Mechanical Properties (at room temperature)

Mechanical Properties Data Range
Tensile strength ≥195 MPa
Yield strength ≥125 MPa
Elongation ≥15%
Hardness (HV) 100–150
Modulus of elasticity 100–110 GPa