ST-9916

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Technical data sheet
SEALTEX® graf ST- 9916
Description:
ST-9916 is made of flexible graphite adhesively bonded to both faces of a 0.05mm thick flat 316L stainless
steel insert. It is compressible and resilient, yet offers excellent bolt torque retention, excellent chemical
resistance. ST-9916 displays outstanding thermal property and has excellent long-term stability of
mechanical and sealing characteristics over a wide temperature range.
Typical application:
ST-9916 is ideally suited for chemical, petrochemical, refinery, manufacturer industry as well as other
standard industrial fluid sealing applications.
Capability:
Property Standard Unity Value
Purity of graphite DIN 51903 % ≥99
Compressibility ASTM F36 % 35-50
Recovery ASTM F36 % ≥10
Stress resistance (16h, 300°C, 50Mpa) DIN 52913 MPa 46
Specific leak rate DIN 3535-6 mg/(s.m) 0.05
Chloride content of graphite layer DIN 28090-2 ppm ≤40
Maximum operating temperature (in air) ℃ -200~450
Maximum operating temperature (in inert atmosphere) ℃ -200~1600
Supply data:
Size(mm): 1000 ×1000 or 1500 ×1500
Thickness(mm): 0.5, 0.8, 1.0, 1.5, 2.0, 3.0
Specification values determined by the test methods required for ASTM F-104.
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