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API Standard Flexible Graphite Sealing Material

Basic Information
Place of Origin: CHINA
Brand Name: CLINGSEAL
Certification: ISO,SGS
Model Number: CSG80
Minimum Order Quantity: 500kg
Price: 2.2USD PER KG
Packaging Details: pallet/wooden case
Delivery Time: 20 days
Payment Terms: T/T, Western Union, MoneyGram
Supply Ability: 500Tons per month
Detail Information
Grade: Industrial Grade Type: Flexible Sheet
Application: Gaskets C Content (%): 99.9%
Thickness: Customizable Material: Graphite,High Pure Graphite
CE Marking: CE - Certified RoHS Compliance: Lead - Free/RoHS - Compliant
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Product Description

Products Description
 

API - Compliant Flexible Graphite Sealing Solutions

Product Overview

Flexible graphite materials, including sheets, foil, paper, tape, and strips, are advanced sealing materials engineered to meet API (American Petroleum Institute) standards for critical industrial applications. These materials are derived from natural graphite flakes through a two - stage process: chemical intercalation followed by thermal exfoliation. This process transforms raw graphite into worm - like structures with an ultralow bulk density of approximately 3 kg/m³. The expanded graphite is then compressed into binder - free rolls or sheets, ensuring a purity level exceeding 99.8% and exceptional performance in harsh environments.

API - Specific Performance Features

  1. Extreme Pressure & Temperature Resistance
    • Complies with API 6A (wellhead equipment) requirements, withstanding pressures up to 10,000 PSI and temperatures ranging from cryogenic (-200°C) to 3,000°C.
    • Demonstrates <5% creep relaxation under sustained load at 150°C/API RP 521 recommended conditions.
  2. Chemical Compatibility
    • Meets NACE MR0175/ISO 15156 for sour gas environments, resisting sulfide stress cracking in H₂S - containing media.
    • Tested to API 607 fire resistance standards, maintaining integrity during hydrocarbon fires (ASTM E162 radiant panel test).
  3. Mechanical Reliability
    • Compressive strength of 60 MPa ensures structural stability in API 6D pipeline valves.
    • Self - lubricating properties reduce torque requirements in API 602 compact gate valves.

Applications in API - Regulated Industries

  1. Oil & Gas Sealing
    • Used in API 6A wellhead gaskets, providing reliable seals in high - pressure/high - temperature (HPHT) drilling operations.
    • Composite versions with stainless steel inserts meet API 17D for subsea equipment.
  2. Refinery & Petrochemical
    • API 600 gate valve seals resist aggressive chemicals (e.g., sulfuric acid, hydrocarbons).
    • Flame - resistant gaskets comply with API 521 泄压 device standards.
  3. Power Generation
    • API 610 centrifugal pump seals maintain leak - free performance in boiler feedwater systems.
    • Graphite - metal hybrid designs meet API 617 axial compressor requirements.

Custom Specifications for API Compliance

  • Sizes:
    • Rolls: 1000mm/1500mm width, 30m/50m/80m length.
    • Sheets: 1000mm x 1500mm, thicknesses from 0.15mm (valve seats) to 5mm (flange gaskets).
  • Density: 0.8–1.25 g/cm³ (customizable for API 6A trim components).
  • Special Features:
    • Laser - cut profiles for API 609 butterfly valve seats.
    • PTFE - impregnated variants for API 624 fugitive emission control.

Testing & Certification

  • API Q1 certified manufacturing processes.
  • Third - party tested to API 6FA fire endurance and API 527 seat tightness standards.
  • RoHS/REACH compliant with full material traceability (ISO 9001:2015).

Why Choose Our API - Compliant Solutions?

  • Proven Field Performance: Installed in 500+ offshore platforms and refineries worldwide.
  • Engineering Support: FEA analysis and API 6D compliance verification for critical applications.
  • Sustainability: 95% material recyclability, aligned with API RP 754 environmental guidelines.

 

Designed to exceed API performance requirements in the most challenging oil, gas, and petrochemical environments.
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
         

 

API Standard Flexible Graphite Sealing Material 0

API Standard Flexible Graphite Sealing Material 1

API Standard Flexible Graphite Sealing Material 2

 

Contact Details
jerryclingseal

Phone Number : +8618605560996

WhatsAPP : +8618605560996