Continental Trade Sp. z o. o.

Sealing

KLINGER graphit Laminat

EXFOLIATED GRAPHITE LAMINATES

Klinger flexible graphite materials are universal sealing products consisting of pure carbon in which the crystalline
structure has been considerably expanded through a special chemical and thermal procedure. The expanded
crystals are formed into foil by a multi-stage calendering process. The thin flexible graphite foil can then be
laminated into thicker sheets to manufacture a range of sealing products.

Klinger flexible graphite sheet can also be supplied with reinforcing materials to increase the tensile strength, loadbearing capacity and improve handling characteristics.

Graphite laminate materials are ideal for steam applications as they do not contain a rubber binder and are not subjected to hardening of the material.

General Properties

  • Outstanding resistance to high and low temperature
  • Chemically resistant to virtually all media
  • High compressibility
  • Low creep under temperature or pressure
  • Seals gases and liquids effectively at low bolt loadings
  • Unlimited storage life

Applications

  • High and low temperatures
  • Aggressive media
  • Low bolt loads
  • Sealing of damaged flange surfaces
  • Hot oil equipment
  • Liquid gas plants
  • Heat exchangers
  • Nuclear power plants
  • Cylinder head and manifold gaskets for engines and compressors

Reinforcements available

  • Tanged Stainless steel 316 *
  • Stainless steel 316 foil *
  • Tanged Hastelloy B2
  • Nickel foil
  • Polyester foil
  • Other inserts are available on request.

* Denotes standard materials

Typical Specifications

PSM sheets

Exfoliated graphite with tanged insert

Applications:

  • Used for a wide range of industrial sealing applications including steam, hot water, thermal oils and hydrocarbons
  • Premium quality material for many industrial sealing applications.
  • Excellent resistance to hot water and steam.

Properties:

  • Excellent resistance to steam
  • Resistant to virtually all media
  • Outstanding resistance to high and low temperature
  • Maximum temp. 460°C (in oxidising atmospheres) 3000°C (in nonoxidising atmospheres)
  • High compressibility
  • Good leakage properties
  • Unlimited storage life
  • Available in sheet form and as cut gaskets
  • Anti-stick finish on both sides
Typical Specifications:PSM
Thickness of sample
mm 1 1,5 2
Density
g/cm3 1
Graphite purity
% >98
Thickness after compression at 35 MPa
mm 0,6 0,85 1,18
Maximum surface load at 450°C MPa 300 180 160
Maximum surface load at 300°C MPa -
Compressibility (ASTM F36J)
% 28 - 33 33 -38 35 - 40
Recovery (ASTM F36J)
% 14 - 19 13 - 18 13 - 18
Stress relaxation (DIN 52913)
MPa > 48 > 48 48
Max temperature at continuous operation
°C 450
Klinger hot/cold compression
decrease in thickness at 23°C  % 30 40 45
decrease in thickness at 300°C  % 1,5 1,5 2
Gas leakage (DIN 3535/6)
ml/min 0,6 0,8 1
Leachable chloride
ppm < 40
steel sheet reinforcement 
perforated in a point
material    1,4401
thickness  mm 0,1
number of layers    1
Sheeting
mm 1000x1000 / 1500x1500
Thickness
mm 0,8/1,0/1,5/2,0/3,0
Surface finish A / S (Anti-stick)
yes
DIN-DVGW approval no
PSE sheets
Typical SpecificationsPSE
Thickness of sample mm 2
Density g/cm3 1± 5%
Graphite purity % 98
Compressibility (ASTM F36J) mm -
Maximum surface load at 450°C MPa -
Maximum surface load at 300°C MPa -
Compressibility (ASTM F36J) % 28 - 42
Recovery (ASTM F36J) % 13 - 19
Stress relaxation (DIN 52913) MPa -
Max temperature at continuous operation °C 350
Klinger hot/cold compression  
decrease in thickness at 23°C  % -
decrease in thickness at 300°C  % -
Gas leakage (DIN 3535/6) ml/min  
Leachable chloride ppm < 50
Steel sheet reinforcement  
material    1,4401
thickness  mm 0,1
number of layers     1
Sheeting mm 1000x1000
Thickness mm 1,5/2,0/3,0
Surface finish A / S (Anti-stick)  yes
DIN-DVGW approval  no
PDM sheets
Typical SpecificationsPDM
Thickness of sample mm 1,5
Density g/cm3 1,3
Graphite purity % >98
Compressibility (ASTM F36J) mm 1,18 - 1,23
Maximum surface load at 450°C MPa -
Maximum surface load at 300°C MPa 200
Compressibility (ASTM F36J) % -
Recovery (ASTM F36J) % -
Stress relaxation (DIN 52913) MPa -
Max temperature at continuous operation °C 450
Klinger hot/cold compression  
decrease in thickness at 23°C  % -
decrease in thickness at 300°C  % -
Gas leakage (DIN 3535/6) ml/min 0,5
Leachable chloride ppm < 40
Steel sheet reinforcement  
material    1,4401
thickness  mm 0,1
number of layers     2
Sheeting mm 1000x1000
Thickness mm 1,5
Surface finish A / S (Anti-stick)  yes
DIN-DVGW approval  yes
SDS sheets
Typical SpecificationsSDS
Thickness of sample mm 1,5 2 2,5
Density g/cm3 1,4 ± 5%    
Graphite purity % >98
Compressibility (ASTM F36J) mm -  
Maximum surface load at 450°C MPa 120 100 90
Maximum surface load at 300°C MPa    
Compressibility (ASTM F36J) % 19 - 24 20 - 25 21 - 26
Recovery (ASTM F36J) % 31 - 35 32 - 36 32 - 37
Stress relaxation (DIN 52913) MPa -
Max temperature at continuous operation °C -
Klinger hot/cold compression    
decrease in thickness at 23°C  % -
decrease in thickness at 300°C  % -
Gas leakage (DIN 3535/6) ml/min -
Leachable chloride ppm < 40
Steel sheet reinforcement  smooth
material    1,4401
thickness  mm 0,05
number of layers     2
Sheeting mm 1000x1000
Thickness mm 1,5/2,0/2,5
Surface finish A / S (Anti-stick)  yes
DIN-DVGW approval  no
SLS sheets

Exfoliated graphite with foil insert

Applications:

  • Used for a wide range of industrial sealing applications including steam, hot water, thermal oils and hydrocarbons
  • Premium quality material for many industrial sealing applications.
  • Excellent resistance to hot water and steam.

Properties:

  • Excellent resistance to steam
  • Resistant to virtually all media
  • Outstanding resistance to high and low temperature
  • Maximum temperature 460°C (in oxidising atmospheres) 3000°C (in non-oxidising atmospheres)
  • High compressibility
  • Good leakage properties
  • Unlimited storage life
  • Available in sheet form and as cut gaskets
  • Anti-stick finish on both sides

 

Typical SpecificationsSLS
Thickness of sample
mm 1,5
Graphite purity
% ≥ 98
Compressibility (ASTM F36J)
% 40
Recovery (ASTM F36J)
% 15
Stress relaxation (DIN 52913: 50MPa, 16h/300°C)
MPa ≥ 48
Klinger hot/cold compression
decrease in thickness at 23°C  % 40
decrease in thickness at 300°C  % 1,5
Gas leakage (DIN 3535/6)
ml/min 0,5 
Leachable chloride
ppm < 40
Sheeting
mm 1000x1000
Thickness
mm 0,45/0,8/1,0/1,5/2,0/3,0
Surface finish A / S (Anti-stick)
yes
DIN-DVGW NG-5124AT0417 approval yes

Diagram P - T (pressure - temperature)

Diagram P - T (pressure - temperature)

While every attempt has been made to verify the source of the information, no responsibility is accepted for accuracy of data.

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