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材料 >> 金属材料
铬,箔, Cr, 1mm厚, 4N
铬,箔, Cr, 1mm厚, 4N图片
品牌: Goodfellow
纯度含量: 99.99%
产地: 英国
索取资料及报价
品牌:Goodfellow
纯度含量:99.99%
产地:英国
产品介绍

The thickness of this item is nominal and may vary between 0.6mm and 1.5mm even over the surface of a single piece of foil.

订货号包装规格
334-991-3212.5mm x 12.5mm
079-489-2925mm x 25mm
936-152-7350mm x 50mm
462-407-9275mm x 75mm
019-088-06100mm x 100mm

产品参数

Purity[纯度]99.99%
Thickness[厚度]1mm
Typical Analysis(典型分析)
Ag<1 PPM
Al<1 PPM
Ca5 PPM
Cu3 PPM
Fe1 PPM
Mg<1 PPM
Mn<1 PPM
Si<1 PPM
Atomic Properties(原子属性)
Atomic number24
Atomic weight ( amu )51.99600
Crystal structureBody Centred Cubic
Electronic structureAr3d⁵4s¹
Ionisation potential ( No./eV )4 / 49.1
Ionisation potential ( No./eV )3 / 31.0
Ionisation potential ( No./eV )1 / 6.77
Ionisation potential ( No./eV )6 / 90.6
Ionisation potential ( No./eV )2 / 16.5
Ionisation potential ( No./eV )5 / 69.3
Natural isotope distribution ( Mass No./% )50 / 4.35
Natural isotope distribution ( Mass No./% )52 / 83.79
Natural isotope distribution ( Mass No./% )54 / 2.36
Natural isotope distribution ( Mass No./% )53 / 9.5
Photo-electric work function ( eV )4.40
Thermal neutron absorption cross-section ( Barns )3.1000
Valences shown2 , 3, 6
Mechanical Properties(机械性能)
Bulk modulus ( GPa ) ( Hard )160.2
Bulk modulus ( GPa ) ( Soft )160.2
Hardness - Vickers ( kgf mm⁻² ) ( Hard )220
Hardness - Vickers ( kgf mm⁻² ) ( Soft )130
Material conditionHard
Material conditionSoft
Poisson's ratio ( Hard )0.210
Poisson's ratio ( Soft )0.210
Tensile modulus ( GPa ) ( Hard )279.00
Tensile modulus ( GPa ) ( Soft )279.00
Tensile strength ( MPa ) ( Hard )689.00
Tensile strength ( MPa ) ( Soft )103.00
Electrical Properties(电气特性)
Electrical resistivity ( μOhmcm )13.2@20℃
Temperature coefficient ( K⁻¹ )0.00214 @0-100℃
Thermal Properties(热性能)
Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ )6.500 @0-100℃
Latent heat of evaporation ( J g⁻¹ )6580
Latent heat of fusion ( J g⁻¹ )260.00
Melting point ( C )1857.00
Specific heat ( J K⁻¹ kg⁻¹ )518.0 @25℃
Thermal conductivity ( W m⁻¹ K⁻¹ )94.00 @0-100℃
Physical Properties(物理性质)
Boiling point ( C )2672
Density ( g cm⁻³ )7.100 @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%
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