聚四氟乙烯,管, PTFE, 3.2mm ID, 4.8mm OD

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品牌:	Goodfellow
产地:	英国

产品介绍

产品参数

Inside Diameter[内部直径]	3.2mm
Length[长度]	500mm - 1000mm
Outside Diameter[外部直径]	4.8mm
Wall Thickness[壁厚]	0.8mm
Mechanical Properties(机械性能)
Coefficient of friction	0.05 - 0.20
Elongation at break ( % )	400.0
Hardness - Rockwell	D50-55-Shore
Izod impact strength ( J m⁻¹ )	160.0
Poisson's ratio	0.460
Tensile modulus ( GPa )	0.30 - 0.80
Tensile strength ( MPa )	10.00 - 40.00
Chemical Resistance(耐化学性)
Acids - concentrated	Good
Acids - dilute	Good
Alcohols	Good
Alkalis	Good
Aromatic hydrocarbons	Good
Greases and Oils	Good
Halogenated Hydrocarbons	Good
Halogens	Good
Ketones	Good
Physical Properties(物理性质)
Density ( g cm⁻³ )	2.200
Flammability	V-0
Limiting oxygen index ( % )	95
Radiation resistance	Poor
Refractive index	1.380
Resistance to Ultra-violet	Excellent
Water absorption - over 24 hours ( % )	0.010
Thermal Properties(热性能)
Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ )	100.000 - 160.000
Heat-deflection temperature - 0.45MPa ( C )	120
Heat-deflection temperature - 1.8MPa ( C )	54.0
Lower working temperature ( C )	-260
Specific heat ( J K⁻¹ kg⁻¹ )	1000.0
Thermal conductivity ( W m⁻¹ K⁻¹ )	0.25 @23℃
Upper working temperature ( C )	180 - 260
Electrical Properties(电气特性)
Dielectric constant @1MHz	2 - 2
Dielectric strength ( kV mm⁻¹ )	50.0 - 170.0
Dissipation factor @ 1MHz	0.0003 - 0.0007
Surface resistivity ( Ohm/sq )	10¹⁷
Volume resistivity ( Ohmcm )	10¹⁸-10¹⁹

其他参数

公差