Grade 705 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.

(Viewing data as-entered. Click here to return)

Grade 705 Zirconium (Zr-2.5Nb)
Categories:	Metal; Nonferrous Metal; Zirconium Alloy
Material Notes:	Characteristics: Higher strength than Zircaloys 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 R60705, Zircadyne® 705
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.
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	Original Value	Comments

Density	6.44 g/cc

Mechanical Properties	Original Value	Comments
Tensile Strength, Ultimate	>= 552 MPa
	260 MPa @Temperature 400 °C
	300 MPa @Temperature 300 °C
	370 MPa @Temperature 200 °C
	480 MPa @Temperature 100 °C
	600 MPa @Temperature 20.0 °C
Tensile Strength, Yield	150 MPa @Temperature 400 °C
	190 MPa @Temperature 300 °C
	270 MPa @Temperature 200 °C
	370 MPa @Temperature 100 °C
	500 MPa @Temperature 20.0 °C
	>= 379 MPa @Strain 0.2 %
Elongation at Break	16 %	in 50 mm
	20 % @Temperature 20.0 °C
	27 % @Temperature 400 °C
	30 % @Temperature 300 °C
	32 % @Temperature 100 °C
	34 % @Temperature 200 °C
Modulus of Elasticity	97.9 GPa
Poissons Ratio	0.33
Shear Modulus	34.5 GPa

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000550 ohm-cm

Thermal Properties	Original Value	Comments
CTE, linear	6.30 µm/m-°C @Temperature 25.0 °C
Specific Heat Capacity	0.285 J/g-°C
Thermal Conductivity	17.1 W/m-K
Melting Point	1840 °C
Boiling Point	4380 °C

Component Elements Properties	Original Value	Comments
Fe + Cr	0.20 %
Hafnium, Hf	<= 4.5 %
Niobium, Nb (Columbium, Cb)	2.5 %
Oxygen, O	0.18 %
Zirconium, Zr	>= 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 go back to viewing the property data in MatWeb's normal format.

Users viewing this material also viewed the following:
Zr-2.5Nb Zirconium Alloy, Nuclear Grade
Grade 702 Zirconium, Commercially Pure
Grade 706 Zirconium (Zr-2.5Nb)
Zircaloy-4 Zirconium Alloy
Reactor Grade Zirconium

MZRI20 / 14572

	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