3 Star Pure Graphite Gasket JIC 4201

3 Star Pure Graphite Gasket JIC 4201

3STAR Expanded Graphite Gasket shows a good adherence to flange and performs a sealing performance even under low seating stress.There is no property change under temperature variation from cryogenic to High Temperature range.It shows good corrosive & chemical resistance.Various kinds of this type of graphite gasket such as stainless steel (wire mesh, foil and tang)inserted types can be available in accordance with some special conditions

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  • -200°C~ 450°C (Oxidizing Atmosphere Grade)
  • -200°C~ 525°C (Oxidation Resistant Grade ) 650°C (in steam service)
pH Range  0 – 14
Applied Fluids
High temperature & high pressure steam, hot water, gas, organic solvents, acid, alkali, LPG, LNG, Liquid N2. etc.


Thickness(mm) 0.8 – 3.2
1000 x 1000 / 1500 x 1500

Typical Physical Properties

Test Method Description JIC 4201 JIC 4201 P,B,W
Carbon Content
Ash Content
Leachable Chloride Content
Sulfur Content
Min. 98%
Max. 2%
Max. 50 ppm
Max. 550 ppm
ASTM F36A Compressibility[%] 40 35
Recovery[%] 15 20
ASTM F38 Creep Relaxation[%] < 5 < 5

Design Data

JIC No. Gasket Factor (m) Min. Design Seating Stress [y] kgf/cm2 [psi]
JIC 4201
JIC 4201-P
JIC 4201-W
2 63 (900)
JIC 4201-B 2 176 (2500)

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