Reactor Grade Zirconium

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Reactor Grade Zirconium
Categories:	Metal; Nonferrous Metal; Zirconium Alloy; Pure Element
Material Notes:	Characteristics: Unalloyed, highly-purified Zirconium Ductile Mechanical Properties similar to titanium and austenitic stainless steel Corrosion resistance is variable Transparent to thermal energy neutrons. Forms adherent, refractory double-oxide layer above 650°C Highly anisotropic, undergoes allotropic transormation from hcp-structured alpha phase to bcc-structured beta phase at 865°C Applications: Inner lining of Zirconium alloy cladding tubes for Water-cooled Nuclear reactors
Key Words:	Zirconium, Zr; UNS R60001
Vendors:	Eagle Alloys Corporation is a leading supplier of quality metals and alloys. Our staff prides itself on working fast, efficiently and courteously to get you the information you need. Call (800) 237-9012 or visit www.EagleAlloys.com. Click here to view all available suppliers for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
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Physical Properties	Metric	English	Comments

Density	6.50 g/cc	0.235 lb/in³
Vapor Pressure	0.0000133 bar @Temperature 2000 °C	0.0100 torr @Temperature 3630 °F
	1.20 bar @Temperature 3600 °C	900 torr @Temperature 6510 °F

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell A	49	49	Estimated from Vickers
Hardness, Rockwell B	78	78	Estimated from Vickers
Hardness, Vickers	150	150	Annealed Sample
Tensile Strength, Ultimate	>= 290 MPa	>= 42100 psi
Tensile Strength, Yield	>= 138 MPa @Strain 0.2 %	>= 20000 psi @Strain 0.2 %
Elongation at Break	25 %	25 %	in 50 mm
Modulus of Elasticity	99.3 GPa	14400 ksi
Poissons Ratio	0.35	0.35
Shear Modulus	36.2 GPa	5250 ksi

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000397 ohm-cm	0.0000397 ohm-cm	Temp Coefficient is 0.0044/°C at 20°C
Magnetic Susceptibility	0.00000134	0.00000134	cgs/g; pure Zr
Critical Magnetic Field Strength, Oersted	47	47	Pure Zr
Critical Superconducting Temperature	0.595 - 0.625 K	0.595 - 0.625 K	pure Zr

Thermal Properties	Metric	English	Comments
Heat of Fusion	250 J/g	108 BTU/lb
Heat of Vaporization	6490 J/g	2790 BTU/lb
CTE, linear	5.89 µm/m-°C @Temperature 25.0 °C	3.27 µin/in-°F @Temperature 77.0 °F
	6.30 µm/m-°C @Temperature 250 °C	3.50 µin/in-°F @Temperature 482 °F
	6.90 µm/m-°C @Temperature 500 °C	3.83 µin/in-°F @Temperature 932 °F
Specific Heat Capacity	0.285 J/g-°C	0.0681 BTU/lb-°F
Thermal Conductivity	22.0 W/m-K	153 BTU-in/hr-ft²-°F
Melting Point	1852 °C	3366 °F
Boiling Point	4377 °C	7911 °F

Optical Properties	Metric	English	Comments
Emissivity (0-1)	0.32	0.32	650 nm; unoxidized pure Zr sample; total

Component Elements Properties	Metric	English	Comments
Oxygen, O	0.80 %	0.80 %
Zirconium, Zr	99 %	99 %

Descriptive Properties
Alpha Phase Crystal Structure	hcp		< 865°C
Beta Phase Crystal Structure	bcc		> 865°C

References for this datasheet.

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