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产品名称

NICKEL 270

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产品描述
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 FORMS
Strip, round bar and wire.
MAJOR SPECIFICATIONS
UNS N02270,ASTM F 3,Werkstoff Nr. 2.4050
LIMITING 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 PROPERTIES
Density, Ib/in3.........................................................................0.322
g/cm3......................................................................... 8.91
Melting Point, °F.....................................................................2650
°C.....................................................................1454
Specific Heat, Btu/lb •°F.....................................................0.110
J/kg •°C........................................................... 460
Permeability.......................................................... Ferromagnetic
Coefficient of Expansion, 70 – 200°F, 10-6 in/in •°F........ 7.4
20 – 95°C, μm/m •°C............. 13.3
Thermal Conductivity, Btu • in/ft2• h•°F........................... 595
W/m•°C...............................................86
Electrical Resistivity, ohm • circ mil/ft.................................45
μΩ•m...............................................0.075
TYPICAL MECHANICAL PROPERTIES
NICKEL 270
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