Grade 706 Zirconium (Zr-2.5Nb)

Login to see your most recently viewed materials here. Or if you don't have an account with us yet, then click here to register.

Grade 706 Zirconium (Zr-2.5Nb)
Categories:	Metal; Nonferrous Metal; Zirconium Alloy
Material Notes:	Characteristics: Comparison to Grade 705: lower oxygen content, greater elongation and lower tensile strength High corrosion resistance to super-heated water, yet lower than the Zircaloys Forms a stable, dense, self-healing oxide layer Highly anisotropic Applications: Pressure tubes in heavy water reactors Machining Parameters: Use slow speeds, heavy feeds and flood cooling with a water-soluble oil lubricant.
Key Words:	UNS R60706, Zircadyne® 706
Vendors:	Visit metalmen for your metals needs. Products include special chemistry, tight tolerances, custom tempers, odd dimensions/forms, and small quantities. Phone 1-800-767-9494. 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.
Printer friendly version Download as PDF Download to Excel (requires Excel and Windows) Export data to your CAD/FEA program Add to Folder:

Physical Properties	Metric	English	Comments

Density	6.44 g/cc	0.233 lb/in³

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	>= 510 MPa	>= 74000 psi
Tensile Strength, Yield	>= 345 MPa @Strain 0.2 %	>= 50000 psi @Strain 0.2 %
Elongation at Break	20 %	20 %	in 50 mm
Modulus of Elasticity	97.9 GPa	14200 ksi
Poissons Ratio	0.33	0.33
Shear Modulus	34.5 GPa	5000 ksi

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000550 ohm-cm	0.0000550 ohm-cm

Thermal Properties	Metric	English	Comments
CTE, linear	6.30 µm/m-°C @Temperature 25.0 °C	3.50 µin/in-°F @Temperature 77.0 °F
Specific Heat Capacity	0.285 J/g-°C	0.0681 BTU/lb-°F
Thermal Conductivity	17.1 W/m-K	119 BTU-in/hr-ft²-°F
Melting Point	1840 °C	3340 °F
Boiling Point	4380 °C	7920 °F

Component Elements Properties	Metric	English	Comments
Fe + Cr	0.20 %	0.20 %
Hafnium, Hf	<= 4.5 %	<= 4.5 %
Niobium, Nb (Columbium, Cb)	2.5 %	2.5 %
Oxygen, O	0.16 %	0.16 %
Zirconium, Zr	>= 95.5 %	>= 95.5 %	includes Hf

Descriptive Properties
Alpha plus Beta Phase Crystal Structure	hcp + bcc		954°C
Beta Phase Crystal Structure	bcc		> 854°C

References for this datasheet.

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

Users viewing this material also viewed the following:
Grade 705 Zirconium (Zr-2.5Nb)
Zr-2.5Nb Zirconium Alloy, Nuclear Grade
ATI Wah Chang Zirconium Alloy Zircaloy-4
Reactor Grade Zirconium
Zircaloy-4 Zirconium Alloy

MZRI30 / 14573

	Advertise with MatWeb!
	Data sheets for over 180,000 metals, plastics, ceramics, and composites.
	HOME • SEARCH • TOOLS • SUPPLIERS • FOLDERS • ABOUT US • FAQ • LOG IN

System Message