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材料 >> 聚合物材料
聚甲醛均聚物,棒, Acetal, Homopolymer POMH, White, 10mm直径
聚甲醛均聚物,棒, Acetal, Homopolymer POMH, White, 10mm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
Length (Round)
839-051-731000 mm

产品参数

Colour[颜色]White
Diameter[直径]10mm
Length[长度]1000 mm
Mechanical Properties(机械性能)
Coefficient of friction0.20 - 0.35
Elongation at break ( % )40.0 -75.0
Hardness - RockwellM94
Izod impact strength ( J m⁻¹ )75.0 - - 130.0
Poisson's ratio0.350
Tensile modulus ( GPa )2.90 - 3.10
Tensile strength ( MPa )70.00
Physical Properties(物理性质)
Density ( g cm⁻³ )1.420
FlammabilityHB
Limiting oxygen index ( % )15
Radiation resistancePoor
Resistance to Ultra-violetPoor
Water absorption - equilibrium ( % )0.60 - 0.90
Water absorption - over 24 hours ( % )0.250
Thermal Properties(热性能)
Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ )122.000
Heat-deflection temperature - 0.45MPa ( C )170
Heat-deflection temperature - 1.8MPa ( C )135.0
Specific heat ( J K⁻¹ kg⁻¹ )1500.0
Thermal conductivity ( W m⁻¹ K⁻¹ )0.22 - 0.24 @23℃
Upper working temperature ( C )80 - 120
Electrical Properties(电气特性)
Dielectric constant @1MHz4
Dielectric strength ( kV mm⁻¹ )20.0
Dissipation factor @ 1MHz0.0050
Surface resistivity ( Ohm/sq )10¹⁵
Volume resistivity ( Ohmcm )10¹⁵
Chemical Resistance(耐化学性)
Acids - concentratedPoor
Acids - dilutePoor-Fair
AlcoholsGood-Fair
AlkalisPoor
Aromatic hydrocarbonsGood
Greases and OilsGood
Halogenated HydrocarbonsGood-Poor
HalogensPoor
KetonesGood-Fair

其他参数

公差

直径≤10mm±10%
聚合物+20% / -10%
陶瓷+20% / -10%
>10mm±5%
陶瓷+20% / -10%
聚合物+20% / -10%
长度<100mm±1mm
≥100mm+5% / -1%
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