Zirconium Material Property Data Sheet

Zirconium, Zr

Subcategory: Metal; Nonferrous Metal; Pure Metallic Element; Zirconium Alloy

Component    Wt. % Zr 100

Material Notes:
This entry is for pure Zr; MatWeb also has Zr alloys.

Physical Properties	Metric	English	Comments
Density	6.53 g/cc	0.236 lb/in³
Mechanical Properties
Hardness, Brinell	145	145	Converted from Vickers for 3000 kg load/10 mm ball. Annealed sample
Hardness, Rockwell A	49	49	Converted from Vickers. annealed sample
Hardness, Rockwell B	78	78	Converted from Vickers. Annealed sample
Hardness, Vickers	150	150	annealed sample
Tensile Strength, Ultimate	330 MPa	47900 psi	Annealed
Tensile Strength, Yield	230 MPa	33400 psi	Annealed
Elongation at Break	32 %	32 %	Annealed
Modulus of Elasticity	94.5 GPa	13700 ksi
Poisson's Ratio	0.34	0.34
Shear Modulus	35.3 GPa	5120 ksi	Calculated
Electrical Properties
Electrical Resistivity	4e-005 ohm-cm	4e-005 ohm-cm
Magnetic Susceptibility	1.34e-006	1.34e-006	cgs/g
Critical Magnetic Field Strength, Oersted	47	47
Critical Superconducting Temperature	0.61 K	0.61 K	±0.15; 0.65, 0.95 K for omega Zr.
Thermal Properties
Heat of Fusion	251 J/g	108 BTU/lb
CTE, linear 20°C	5.8 µm/m-°C	3.22 µin/in-°F	over the range 20-100ºC
CTE, linear 250°C	6.3 µm/m-°C	3.5 µin/in-°F
CTE, linear 500°C	6.9 µm/m-°C	3.83 µin/in-°F
Heat Capacity	0.285 J/g-°C	0.0681 BTU/lb-°F
Thermal Conductivity	16.7 W/m-K	116 BTU-in/hr-ft²-°F
Melting Point	1852 °C	3370 °F
Optical Properties
Emissivity (0-1)	0.32	0.32	650 nm; unoxidized; total
Descriptive Properties
CAS Number	7440-67-7

References are available for this material.