Physical Properties of PTFE & Filled PTFE Components - Exporter & Manufacturer, Ahmedabad, India

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PTFE Physical Properties


	SANGHVI TECHNO PRODUCTS

Physical Properties of PTFE & Filled PTFE Components

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Product Code : 13

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Product Specification

Sr. No.	Property	Unit	Test Method	Virgin PTFE		25% Glass Filled PTFE		15% Glass +5% MoS² Filled PTFE		25% Carbon Filled PTFE		15% Graphite Filled PTFE		40% Bronze Filled PTFE
1	Density	gm/cc	ASTM D-792	2.1-2.2		2.24-2.25		2.23-2.24		2.12-2.14		2.14-2.16		3.1-3.2
2	Tensile Strength	kgf/cm²	ASTM D-638	210-350		125-200		150-220		120-155		150-200		125-150
3	Elongation of Break	%	ASTM d-638	250-400		200-300		220-320		100-150		175-225		100-175
4	Compressive Strength	kgf/cm²	ASTM D-695	40-50		75-85		65-75		75-85		65-75		85-100
5	Compressive Modulus Deformation under load	kgf/cm²	ASTM D-695	4000		7000		6000		8400		8000		8500
6	A. 2 hrs. 23^oC 113 kg/cm²B. 24 hrs. 23^oC 113 kg/cm²C. Permanent D. 2 hrs. 150^oC 113 kg/cm²	%	ASTM D-621	12 15 8 55		9 11 7 50		10 12 7.5 50		5 7 3.5 35		6 8 4.5 43		5 6 3 42
7	Flexural Strength	kg/cm²	ASTM D790	57		42		50		96		60		85
8	Flexiural Modulus	kgf/cm²	ASTM D-790	3500-6300		16700		20000		11900		11000		14000
9	A. - 20^oC B. +20^oC	cmkgf/cm²	ASTM D-256	9 15		9.5 11		9 12		8 10		10 14		11 9
10	Hardness Co-efficient of Friction	Shore-D	ASTM D-2240	60-65		70-75		62-68		70-75		60-65		70-75
11	A. Dynamic P-7 kg/cm2 V-0.5 m/s B. Static P-35 kg/cm²	---	---	0.04-0.06 0.05-0.08		0.5-0.54 0.11-0.13		0.15-0.20 0.08-0.01		0.12-0.17 0.09-0.11		0.11-0.16 0.08-0.10		0.11-0.15 0.08-0.10
12	Water Absorption	%	ASTM D-570	0		0.013		0.015		0		0		0
13	Heat Resistance at Atm. Pressure	^oC	---	-250 to +260
14	Thermal Conductivity	10^-4 cal cm^oC	Cenco Fitch	6		9		9		13		14		12
	Linear Thermal Expansion			Axial	Radial	Axial	Radial	Axial	Radial	Axial	Radial	Axial	Radial	Axial	Radial
15	A. 30-150^oC B. 30-200^oC C. 30-250^oC	%	ASTM D-696	1.5 2.4 3.4	1.5 2.3 3.6	1.5 2.2 3.2	0.7 1.0 1.4	1.5 2.3 3.3	1.0 1.8 2.2	1.2 1.9 2.7	1.0 1.5 2.4	1.3 2.0 3.0	1.0 1.7 2.5	1.15 1.85 2.55	0.95 1.55 2.25
16	Dielectric Strength	kv/mm	ASTM D-149	24		12		16		2		2		Conductive
17	Volume Resistivity	ohm cm	ASTM D-257	16¹⁸		10¹⁵		10¹⁵		10⁴		10³		10⁷
18	Surface Resistivity	ohm	ASTM D-258	10¹⁵		10¹⁵		10¹⁵		10⁷		10⁶		10⁹
19	Chemical Resistance: PTFE is chemically inert and unaffected by all known chemicals except molten or dissolved alkali metals sodium, potassium, rubidium, cesium, francium and fluorine gas, certain fluorine compounds and complexes at elevated temperature. Filled PTFE has inferior chemical resistance depending upon the particular filler.
20	We also manufacture filled grade products with percentage of fillers as per customer's specifications.

Note:

Data quoted are average values and may vary with source and grade of raw material.
Volumes may be used for design with consideration of factor of safety.
Company do not accepts any responsibility of results obtained and infringement of any patents.

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PTFE Extruded Rods	PTFE Extruded Tubes	Moulded Rods	Skived Sheets	Moulded Sheets	PTFE Machined Components

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SANGHVI TECHNO PRODUCTS

119, Lalit Warehouse, Narol-Sarkhej Highway, Narol,Ahmedabad - 382405, Gujarat, India
Phone:91-79-25351274/25380281/32511897
Fax:91-79-25380914

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Mr. Ronak Mehta (Partner)
Mobile:+919825068110