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材料 >> 聚合物材料
聚乙烯,高密度,球体, HDPE, Natural, 31.75mm直径
聚乙烯,高密度,球体, HDPE, Natural, 31.75mm直径图片
品牌: Goodfellow
产地: 英国
索取资料及报价
品牌:Goodfellow
产地:英国
产品介绍
订货号包装规格
077-407-501 Piece
819-761-352 Piece
785-843-165 Piece
606-064-0210 Piece
707-493-6620 Piece
831-487-2350 Piece

产品参数

Colour[颜色]Natural
Diameter[直径]31.75mm
Quantity[数量]1 Piece - 50 Piece
Physical Properties(物理性质)
Density ( g cm⁻³ )0.950
FlammabilityHB
Limiting oxygen index ( % )17
Radiation resistanceFair
Refractive index1.540
Resistance to Ultra-violetPoor
Water absorption - over 24 hours ( % )< 0.010
Thermal Properties(热性能)
Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ )100.000 - 200.000
Heat-deflection temperature - 0.45MPa ( C )75
Heat-deflection temperature - 1.8MPa ( C )46.0
Specific heat ( J K⁻¹ kg⁻¹ )1900.0
Thermal conductivity ( W m⁻¹ K⁻¹ )0.45 - 0.52 @23℃
Upper working temperature ( C )55 - 120
Electrical Properties(电气特性)
Dielectric constant @1MHz2 - 2
Dielectric strength ( kV mm⁻¹ )22.0
Dissipation factor @ 1MHz1.0000 - 10.0000 x 10⁻⁴
Surface resistivity ( Ohm/sq )10¹³
Volume resistivity ( Ohmcm )10¹⁵-10¹⁸
Mechanical Properties(机械性能)
Coefficient of friction0.29
Hardness - RockwellD60-73-Shore
Izod impact strength ( J m⁻¹ )20.0 - - 210.0
Poisson's ratio0.460
Tensile modulus ( GPa )0.50 - 1.20
Tensile strength ( MPa )15.00 - 40.00
Chemical Resistance(耐化学性)
Acids - concentratedGood-Fair
Acids - diluteGood
AlcoholsGood
AlkalisGood
Aromatic hydrocarbonsFair
Greases and OilsGood-Fair
Halogenated HydrocarbonsFair-Poor
HalogensFair-Poor
KetonesGood-Fair

其他参数

公差

直径±5%
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