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钴,块, Co, 40mm Max. Lump Size, Nominal 30mm Rounds
钴,块, Co, 40mm Max. Lump Size, Nominal 30mm Rounds图片
品牌:Goodfellow
纯度含量:99.8%
产地:英国


产品介绍

Please ask for prices for larger quantities.

订货号包装规格
Weight
807-289-4850g
019-053-08100g
490-289-80200g
058-478-80500g
600-433-171000g

产品参数

Maximum Lump Size[]40mm
Product Shape[形状]Nominal 30mm Rounds
Purity[纯度]99.8%
Weight[重量]50g - 1000g
Typical Analysis(典型分析)
Cu10 PPM
Fe130 PPM
Ni2500 PPM
Electrical Properties(电气特性)
Electrical resistivity ( μOhmcm )6.34@20℃
Temperature coefficient ( K⁻¹ )0.00660 @0-100℃
Thermal emf against Pt (cold 0C - hot 100C) ( mV )-1.33
Mechanical Properties(机械性能)
Bulk modulus ( GPa ) ( Hard )181.5
Bulk modulus ( GPa ) ( Soft )181.5
Hardness - Vickers ( kgf mm⁻² ) ( Hard )320
Hardness - Vickers ( kgf mm⁻² ) ( Soft )170
Material conditionHard
Material conditionSoft
Poisson's ratio ( Hard )0.320
Poisson's ratio ( Soft )0.320
Tensile modulus ( GPa ) ( Hard )211.00
Tensile modulus ( GPa ) ( Soft )211.00
Tensile strength ( MPa ) ( Hard )1135.00
Tensile strength ( MPa ) ( Soft )760.00
Yield strength ( MPa ) ( Soft )345.0 - 485.0
Atomic Properties(原子属性)
Atomic number27
Atomic weight ( amu )58.93320
Crystal structureHexagonal Close Packed
Electronic structureAr3d⁷4s²
Ionisation potential ( No./eV )2 / 17.06
Ionisation potential ( No./eV )4 / 51.3
Ionisation potential ( No./eV )3 / 33.5
Ionisation potential ( No./eV )1 / 79.5
Ionisation potential ( No./eV )1 / 7.86
Ionisation potential ( No./eV )6 / 102
Photo-electric work function ( eV )5.00
Thermal neutron absorption cross-section ( Barns )37.5000
Valences shown2 , 3
Physical Properties(物理性质)
Boiling point ( C )2870
Density ( g cm⁻³ )8.900 @20℃
Thermal Properties(热性能)
Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ )12.500 @0-100℃
Latent heat of evaporation ( J g⁻¹ )6490
Latent heat of fusion ( J g⁻¹ )263.00
Melting point ( C )1495.00
Specific heat ( J K⁻¹ kg⁻¹ )456.0 @25℃
Thermal conductivity ( W m⁻¹ K⁻¹ )100.00 @0-100℃

人体健康

吸入、摄入或通过皮肤吸收后可能造成死亡或对健康造成急性或慢性损害的化学品。

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