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材料 >> 金属材料
铬,粉末, Cr, 2N
铬,粉末, Cr, 2N图片
品牌: Goodfellow
纯度含量: 99.0%
产地: 英国
索取资料及报价
品牌: Goodfellow
纯度含量: 99.0%
产地: 英国
半岛bd体育手机客户端 介绍
订货号 包装规格
Weight
240-975-30 20 g
156-315-34 50 g
803-141-41 100 g
747-681-69 200 g

半岛bd体育手机客户端 参数

Mean Particle Size[平均粒度] <10
Purity[纯度] 99.0%
Weight[重量] 20 g - 200 g
Typical Analysis(典型分析)
Al 2000 PPM
C <200 PPM
Fe 4000 PPM
S 200 PPM
Si 1000 PPM
Atomic Properties(原子属性)
Atomic number 24
Atomic weight ( amu ) 51.99600
Crystal structure Body Centred Cubic
Electronic structure Ar3d?4s?
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 shown 2 , 3, 6
Mechanical Properties(机械性能)
Bulk modulus ( GPa ) ( Hard ) 160.2
Bulk modulus ( GPa ) ( Soft ) 160.2
Hardness - Vickers ( kgf mm?? ) ( Hard ) 220
Hardness - Vickers ( kgf mm?? ) ( Soft ) 130
Material condition Hard
Material condition Soft
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?? ) 0.00214 @0-100℃
Thermal Properties(热性能)
Coefficient of thermal expansion ( x10?? K?? ) 6.500 @0-100℃
Latent heat of evaporation ( J g?? ) 6580
Latent heat of fusion ( J g?? ) 260.00
Melting point ( C ) 1857.00
Specific heat ( J K?? kg?? ) 518.0 @25℃
Thermal conductivity ( W m?? K?? ) 94.00 @0-100℃
Physical Properties(物理性质)
Boiling point ( C ) 2672
Density ( g cm?? ) 7.100 @20℃
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