Zircaloy-2 Zirconium Alloy

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Zircaloy-2 Zirconium Alloy
Categories:	Metal; Nonferrous Metal; Zirconium Alloy
Material Notes:	Characteristics: Mechanical Properties similar to pure zirconium, stronger and less ductile Excellent corrosion resistance Transparent to thermal energy neutrons. Forms a stable, dense, self-healing oxide layer Highly anisotropic Applications: Nuclear reactor service, cladding and internal structures Machining Parameters: Use slow speeds, heavy feeds and flood cooling with a water-soluble oil lubricant.
Key Words:	UNS R60802
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Physical Properties	Metric	English	Comments

Density	6.56 g/cc	0.237 lb/in³

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	>= 413 MPa	>= 59900 psi
Tensile Strength, Yield	>= 241 MPa @Strain 0.2 %	>= 35000 psi @Strain 0.2 %
Elongation at Break	20 %	20 %	in 50 mm
Modulus of Elasticity	99.3 GPa	14400 ksi
Poissons Ratio	0.37	0.37
Shear Modulus	36.2 GPa	5250 ksi

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000740 ohm-cm	0.0000740 ohm-cm

Thermal Properties	Metric	English	Comments
CTE, linear	6.00 µm/m-°C @Temperature 25.0 °C	3.33 µin/in-°F @Temperature 77.0 °F
Specific Heat Capacity	0.285 J/g-°C	0.0681 BTU/lb-°F
Thermal Conductivity	21.5 W/m-K	149 BTU-in/hr-ft²-°F
Melting Point	1850 °C	3360 °F
Boiling Point	>= 4375 °C	>= 7907 °F

Component Elements Properties	Metric	English	Comments
Chromium, Cr	0.10 %	0.10 %
Iron, Fe	0.10 %	0.10 %
Nickel, Ni	0.050 %	0.050 %
Oxygen, O	0.12 %	0.12 %
Tin, Sn	1.4 %	1.4 %
Zirconium, Zr	98.5 %	98.5 %

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

References for this datasheet.

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MZRN10 / 14575

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