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镁,块, Mg, 200mm Max. Lump Size
品牌:Goodfellow
产地:英国

产品介绍
订货号包装规格
Weight
960-025-5510g
828-197-0720g
230-503-9650g
224-645-70100g
465-244-94200g
745-766-49500g
884-875-221000g
666-113-142000g
754-272-295000g
318-232-5510000g

产品参数

Description[描述]Offcuts from rod
Maximum Lump Size[]200mm
Weight[重量]10g - 25000g
Thermal Properties(热性能)
Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ )26.000 @0-100℃
Latent heat of evaporation ( J g⁻¹ )5254
Latent heat of fusion ( J g⁻¹ )362.00
Melting point ( C )649.00
Specific heat ( J K⁻¹ kg⁻¹ )1020.0 @25℃
Thermal conductivity ( W m⁻¹ K⁻¹ )156.00 @0-100℃
Mechanical Properties(机械性能)
Bulk modulus ( GPa ) ( Hard )35.6
Bulk modulus ( GPa ) ( Soft )35.6
Hardness - Vickers ( kgf mm⁻² ) ( Hard )35 - 45
Hardness - Vickers ( kgf mm⁻² ) ( Soft )30 - 35
Material conditionHard
Material conditionSoft
Poisson's ratio ( Hard )0.291
Poisson's ratio ( Soft )0.291
Tensile modulus ( GPa ) ( Hard )44.70
Tensile modulus ( GPa ) ( Soft )44.70
Tensile strength ( MPa ) ( Hard )232.00
Tensile strength ( MPa ) ( Soft )185.00
Yield strength ( MPa ) ( Hard )100.0
Yield strength ( MPa ) ( Soft )69.0
Atomic Properties(原子属性)
Atomic number12
Atomic weight ( amu )24.30500
Crystal structureHexagonal Close Packed
Electronic structureNe3s²
Ionisation potential ( No./eV )2 / 15.03
Ionisation potential ( No./eV )6 / 187
Ionisation potential ( No./eV )4 / 109
Ionisation potential ( No./eV )5 / 141
Ionisation potential ( No./eV )1 / 7.65
Ionisation potential ( No./eV )3 / 80.1
Natural isotope distribution ( Mass No./% )24 / 78.99
Natural isotope distribution ( Mass No./% )26 / 11.01
Natural isotope distribution ( Mass No./% )25 / 10.00
Photo-electric work function ( eV )3.66
Thermal neutron absorption cross-section ( Barns )0.0640
Valences shown2
Physical Properties(物理性质)
Boiling point ( C )1090
Density ( g cm⁻³ )1.740 @20℃
Electrical Properties(电气特性)
Electrical resistivity ( μOhmcm )4.2@20℃
Temperature coefficient ( K⁻¹ )0.00425 @0-100℃
Thermal emf against Pt (cold 0C - hot 100C) ( mV )0.44
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