These targets are normally available for immediate shipment from stock. Other sizes are available to special order.

订货叶�/strong>	包装规格
Disc
425-879-38	25mm
676-056-44	50mm
958-213-42	57mm
507-052-98	75mm
006-808-46	101.6mm

产品参数

Diameter[直径]	25mm - 101.6mm
Purity[纯度]	99.95%
Thickness[厚度]	3mm
Typical Analysis(典型分析)
C	30 PPM
Ca	<20 PPM
Cu	<20 PPM
Fe	20 PPM
H	6 PPM
Mg	<10 PPM
Mo	150 PPM
N	10 PPM
Ni	<20 PPM
O	30 PPM
Pb	<50 PPM
Si	<50 PPM
Sn	<30 PPM
Ti	<20 PPM
Mechanical Properties(机械性能)
Bulk modulus ( GPa ) ( Hard )	311.0
Bulk modulus ( GPa ) ( Soft )	311.0
Hardness - Vickers ( kgf mm?? ) ( Hard )	500
Hardness - Vickers ( kgf mm?? ) ( Soft )	360
Material condition	Soft
Material condition	Hard
Poisson's ratio ( Hard )	0.280
Poisson's ratio ( Soft )	0.280
Tensile modulus ( GPa ) ( Hard )	411.00
Tensile modulus ( GPa ) ( Soft )	411.00
Tensile strength ( MPa ) ( Hard )	1920.00
Tensile strength ( MPa ) ( Soft )	550.00 - 620.00
Yield strength ( MPa ) ( Soft )	550.0
Atomic Properties(原子属�?
Atomic number	74
Atomic weight ( amu )	183.85000
Crystal structure	Body Centred Cubic
Electronic structure	Xe4f??5d?6s?
Ionisation potential ( No./eV )	1 / 7.98
Ionisation potential ( No./eV )	2 / 17.7
Natural isotope distribution ( Mass No./% )	183 / 14.3
Natural isotope distribution ( Mass No./% )	182 / 26.3
Natural isotope distribution ( Mass No./% )	186 / 28.6
Natural isotope distribution ( Mass No./% )	180 / 0.1
Natural isotope distribution ( Mass No./% )	184 / 30.7
Photo-electric work function ( eV )	4.55
Thermal neutron absorption cross-section ( Barns )	18.5000
Valences shown	2 ,3,4,5,6
Electrical Properties(电气特�?
Electrical resistivity ( μOhmcm )	5.4@20ℂ�/td>
Superconductivity critical temperature ( K )	0.0154
Temperature coefficient ( K?? )	0.00480 @0-100ℂ�/td>
Thermal emf against Pt (cold 0C - hot 100C) ( mV )	1.12
Thermal Properties(热性能)
Coefficient of thermal expansion ( x10?? K?? )	4.500 @0-100ℂ�/td>
Latent heat of evaporation ( J g?? )	4009
Latent heat of fusion ( J g?? )	192.00
Melting point ( C )	3410.00
Specific heat ( J K?? kg?? )	133.0 @25ℂ�/td>
Thermal conductivity ( W m?? K?? )	173.00 @0-100ℂ�/td>
Physical Properties(物理性质)
Boiling point ( C )	5660
Density ( g cm?? )	19.300 @20ℂ�/td>

其他参数

公差

直径		��0.5mm
厚度		��0.5mm