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EXPANDED GRAPHITE SHEET&ROLL

　Expanded graphite sheet&roll are selected from the high purity natural flake graphite .They are made through the advanced chemical treatment and mech anical procedure etc.This products enhance excellent properties such as thermal steble,with stand high and low temperature,corrosion,resistance.It has been widely used for die formed packing rings and various kinds of gaskets.It is a basic material for making different kinds of graphite seals.Specifications can be ordere on customer’s demands.

 
   
 

Size of sheet

density(g/cm3)

length(mm)

width(mm)

thickness(mm)

0.7-1.2

≤1100

≤1100

0.2-3.0

Size of roll

density(g/cm3)

length(mm)

width(mm)

thickness(mm)

0.7-1.2

4.5-300000

≤1100

0.2-1.5

Service range

temperature（℃）

Pressure （MPa）

In oxidizing atmosphere

In non-oxidizing atmosphere

pressure

PH range

－240-450

－240-3500

30

0-14

 

 

  

Main properties

项目

Ⅰ

Ⅱ

Tolerance of density (g/cm3)

±0.03

±0.05

Tolerance of thickness(g/cm3)

±0.03

±0.04

Carbon content (%)

≥99

≥97

Tensile strength (MPa)

≥4.8

≥4.5

Compressibility (%)

≥40

≥40

Recovery (%)

≥20

≥15

Sulphur content(ppm)

40-900

＜1500

Chorine content(ppm)

＜25

＜30

Stress relaxation (%)

10

10

Ignition loss (%)

＜0.5

＜0.1



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