China Industrial Sealing Graphite Gasket Sheet 99.8% Purity Chemical Resistant for sale

Industrial Sealing Graphite Gasket Sheet 99.8% Purity Chemical Resistant

Price Negotiable

Price: 2.2USD PER KG

MOQ: 500kg

Delivery Time: 20 days

Brand: CLINGSEAL

Product Description

Products Description

Industrial Sealing Solution Design with Flexible Graphite Materials

Engineered for critical industrial applications, our sealing solutions incorporate advanced flexible graphite materials including sheets, foils, papers, tapes, and strips. These materials are produced through a proprietary process: natural flake graphite undergoes chemical intercalation followed by thermal exfoliation at 1000°C+, forming vermicular structures with 0.003g/cm³ density. The binder-free expanded graphite is then calendared into rolls, offering:

99.8% purity
Chemical resistance to acids/alkalis
Gamma radiation tolerance (up to 10⁶ Gy)
Thermal stability (-200°C to +650°C)
40% compression recovery
Zero outgassing
Leak-tight sealing

Industrial Sealing Applications:

Pump & Valve Sealing Systems
Flange Joints in Petrochemical Plants
Heat Exchanger Gaskets
Mechanical Seals for Rotating Equipment
High-Temperature Insulation in Furnace Doors

Custom Design Capabilities:

Laser-cut gaskets for complex geometries
Metal-reinforced composites for high-pressure systems
Die-stamped thick plates for flange sealing
CNC-machined components for precision applications

Standard & Custom Specifications:

Parameter	Range	Custom Options
Material Type	Pure Graphite / Metal Composite	Stainless Steel/Inconel Reinforcement
Roll Width	1000mm / 1500mm	Up to 2500mm
Sheet Size	1000x1000mm / 1500x1500mm	Custom sizes up to 3000x3000mm
Thickness	0.15-5.0mm	+/-0.01mm precision
Density	0.8-1.25g/cm³	Custom density matching

Item	Standard Value
C concentration	99%
S concentration	<1000ppm
chlorine concentration	<45ppm
tensile strength	4.5MPa
compressibility	>40%
recovery	>10%
Temperature	-200ºC-600ºC
Pressure	20MPa
Terence of Thickness	-0.04mm~+0.04mm
Terence of Dimension	In accordance with your Gasket size
Terence of Density	-0.06~g/cm3+0.06gcm3

Grades Separate :JB/T53392-1999

Mechanical Data		Qualified product	Top Grade	Superior Grade
Density Tolerance g/cm3	<0.4	±0.10	±0.05
	≥0.4	±0.07
Tensile Strength MPa		≥3.2	≥4.5	≥5.0
Compression Ratio %		35~55
Rebound Rate %		≥9	≥11	≥12
Stress relaxation rate %		≤10
Ash %		≤6.0	≤3.0	≤1.0
Heat loss on ignation %	450ºC	≤1.0		≤0.5
	600ºC	≤20		≤15
Sulphur content		≤1500ppm	≤1000ppm	≤600ppm
Chloride content		≤100ppm	≤50ppm	≤20ppm