Columbium + 1% Zirconium


Application & Characteristics
Used for nuclear reactors, missiles and aircraft. Has good strength at high temperatures and is more easily welded than Columbium.

Chemical Composition (%)
Zr 0.8-1.2; Balance Cb

Physical Properties
Melting Range (°F)	4350
Density (lbs/in³) 68F	0.31
Thermal Expansion (in/in °Fx10 to the power of -6)	-
Electrical Resistivity (ohms/cir mil/ft.) 68F	-

Mechanical Properties – Temper = A
Tensile Strength (psi x 10³)	48
Yield Strength (psi x 10³)	40
Elongation ( % )	30
Hardness	65 (VHN)

Mechanical Properties – Temper = H
Tensile Strength (psi x 10³)	90
Yield Strength (psi x 10³)	80
Elongation ( % )	5
Hardness	140 (VHN)