All foils are mounted on a permanent support which cannot be removed without damaging the foil.

订货号	包装规格
Sizes
416-136-90	25 mm x 25 mm
530-228-33	50 mm x 50 mm

半岛bd体育手机客户端 参数

Purity[纯度]	98.7%
Support[载体]	0.125 mm Permanent Polyester
Thickness[厚度]	0.007mm
Typical Analysis(典型分析)
Al	40 PPM
Ca	100 PPM
Cr	4 PPM
Cu	8 PPM
Fe	40 PPM
Mg	100 PPM
Pb	1.25 Percent
Si	50 PPM
Mechanical Properties(机械性能)
Bulk modulus ( GPa ) ( Polycrystalline )	118.0
Hardness - Mohs ( Polycrystalline )	5.00
Material condition	Polycrystalline
Poisson's ratio ( Polycrystalline )	0.240
Tensile modulus ( GPa ) ( Polycrystalline )	191.00
Atomic Properties(原子属性)
Atomic number	25
Atomic weight ( amu )	54.93800
Crystal structure	Body Centred Cubic
Electronic structure	Ar3d?4s?
Ionisation potential ( No./eV )	2 / 15.64
Ionisation potential ( No./eV )	3 / 33.67
Ionisation potential ( No./eV )	4 / 51.2
Ionisation potential ( No./eV )	6 / 95
Ionisation potential ( No./eV )	5 / 72.4
Ionisation potential ( No./eV )	1 / 7.43
Photo-electric work function ( eV )	3.80
Thermal neutron absorption cross-section ( Barns )	13.3000
Valences shown	1 , 2, 3, 4, 6, 7
Physical Properties(物理性质)
Boiling point ( C )	1962
Density ( g cm?? )	7.400 @20℃
Thermal Properties(热性能)
Coefficient of thermal expansion ( x10?? K?? )	23.000 @0-100℃
Latent heat of evaporation ( J g?? )	4207
Latent heat of fusion ( J g?? )	267.00
Melting point ( C )	1244.00
Specific heat ( J K?? kg?? )	477.0 @25℃
Thermal conductivity ( W m?? K?? )	7.81 @0-100℃
Electrical Properties(电气特性)
Electrical resistivity ( μOhmcm )	160@20℃

其他参数

公差

长度	<100mm	±1mm
	≥100mm	+2% / -1%
直径	<100mm	±1mm
	≥100mm	+2% / -1%
厚度	<0.01mm	±25%
	≤0.05mm	±15%
	>0.05mm	±10%
长度 1	<100mm	±1mm
	≥100mm	+2% / -1%
长度 2	<100mm	±1mm
	≥100mm	+2% / -1%