Nickel 270 Tube

A high-purity grade of nickel made by powder metallurgy. It has a low base hardness and high ductility. Its extreme purity is useful for components of hydrogen thyratrons. It is also used for electrical resistance thermometers.STANDARD PRODUCT FORMSStrip, round bar and wire.MAJOR SPECIFICATIONSUNS N02270,ASTM F 3,Werkstoff Nr. 2.4050LIMITING CHEMICAL COMPOSITION, %Nia..........99.9 min.Cu........0.01 max.Fe.........0.05 max.aPlus Co.Mn...... 0.003 max.C............0.02 max.S......... 0.003 max.Ti........ 0.005 max.Mg...... 0.005 max.Si........ 0.005 max.PHYSICAL CONSTANTS AND THERMAL PROPERTIESDensity, Ib/in3.........................................................................0.322g/cm3......................................................................... 8.91Melting Point, °F.....................................................................2650°C.....................................................................1454Specific Heat, Btu/lb •°F.....................................................0.110J/kg •°C........................................................... 460Permeability.......................................................... FerromagneticCoefficient of Expansion, 70 – 200°F, 10-6 in/in •°F........ 7.420 – 95°C, μm/m •°C............. 13.3Thermal Conductivity, Btu • in/ft2• h•°F........................... 595W/m•°C...............................................86Electrical Resistivity, ohm • circ mil/ft.................................45μΩ•m...............................................0.075TYPICAL MECHANICAL PROPERTIES