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Product name

Pure PTFE O Ring

Serial number
SG-T4300
Affiliate classification
没有此类产品
Product description

Description

PTFE is a popular O-Ring material which is White in color. The PTFE O-Rings are popular for use in applications which require a chemically resistant and non-compressible material. 

Specification

Our PTFE O-Ring

1.AS568 US standard and other sizes

2.OEM Services are available

There are several different standards to choose from when it comes to O-ring dimensions. The most popular in the United States is the AS568 standard for O-ring sizes and tolerances. Maintained by the Society of Automotive Engineers, this standard allows the user to choose from five different cross-sections with inside diameters ranging from 1/32" to 26". 

All Seals also offers a wide array of metric sizes, in both standard and non-standard dimensions. All Seals can provide custom O-rings, specially made to your demanding requirements.

 

ID

≤1000mm

CS

0.3-15mm

 

 If you have any need, please send us massage.

We will try to reply you ASAP.

Technical datas of  Pure PTFE O Ring

Item

ASTM

Data

Unit

Mechanical Properties

Density

D792

2.1~ 2.2

g/m3

Tensile strength

D638

≥25  about 25 ~ 45

MPa

Elongation at break

D638

≥150 about 200~ 350

%

Compression strength

D695

24

MPa

ShoreD Hardness

D636

50-60

-

Friction coefficient

on steel

0.01

-

Thermal Properties

Working Temp

 

-180 ~ +260

°C

Melting point

 

330

°C

Produce Max. Temp

 

390

°C

Fire Resistance

UL94

V-0

 

Brittle point temperature

 

-268

°C

Electrical properties

Dielectric strength

D149

>1400

kV/mm

Volume resistivity

D257

>1018

Ω·cm

Surface Resistivity

D257

>1016

Ω

Dielectric constant

D150

2.1

 

Conventional properties

Chemical solvent resistance

Excellent

 

 

Water absorption (25℃ )

D570

0.01

24h/%

limit oxygen index

D2963

>95

 

 

Feature:

PTFE is the chemically inert of the O-ring materials.

Resistant to most chemicals including acids, bases, oils, steam and other chemicals.

Very tough and abrasive resistant.

Has minimum friction coefficient of all know pure material

Non-viscous, no aging

Now molds can be made according to customers requirements.

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