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  • Introduction:Hebei Haihao Group can produce all dimensions flange gasket in high quality,we also can manufacturer standard or customized


Product details


Flange gaskets are used to create a static seal between two flanges faces, at various operating conditions, with varied pressure and temperature ratings. A gaskets fills the microscopic spaces and irregularities of the flange faces, and then it forms a seal that is designed to keep liquids and gases. Correct installation of damage-free gaskets and demage-free flange faces is a requirement for a leak-free flange connection.

 Size  Plate flange:1/4"-160"


 Pressure  America Series:Class 150 ,Class 300, Class 600, Class 900A ,Class 1500,Class 2500.          

 Europe Series:PN2.5,PN6,PN10,PN16,PN25,PN40,PN63,PN100,PN160,PN250,PN320,PN400.

 Flange Facing Types  America Series:Flat face(FF),Raised face(RF),Tongue(T),Groove(G),Female(F),Male(M),Ring type joints face(RJ/RTJ)

Europe Series:Type A(Flat Face),Type B(Raised Face),Type C(Tongue),Type D(Groove),Type E(Spigot),Type F(Recess),Type G(O-Ring Spigot),Type H(O-Ring Groove).

 Material  Carbon steel: ASTM A105,ASTM A105N,GB 20,C22.8.

 Alloy steel: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP 911

 Stainless steel: ASTM/ASME A403 WP 304-304L-304H-304LN-304N

                       ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti

                       ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H

 Low temperature steel: ASTM/ASME A402 WPL 3-WPL 6

 High performance steel: ASTM/ASME A860 WPHY 42-46-52-60-65-70

 Standard  ASME ANSI B16.5,ASME ANSI B16.47.

 API 605,API 6L.

 MSS SP 44

 CSA Z245.12



 BS1560,BS 4504,BS 10.

 AFNOR NF E29-200-1



 JIS B2220

 UNI 2276. UNI 2277.UNI 2278 .UNI 6089 .UNI 6090

 Industrial Processes  Die forging,Machining
flange gasket insulation


flange gasket data-Hebei Haihao Group

Technical Data

Item Technical Data
Density 1.0g/cm3
Density Tolerance ±0.03 g/cm3
Thick Tolerance ±0.03 mm
Carbon Content 99%
Ash Content ASTM C561 ≤1%
Leachable Chloride ASTM D-512 50ppm Max
Sulphur Content ASTM C-816 1000ppm Max
Fluorides Content ASTM D-512 50ppm Max
Working Temperature

-200 to +3300 Non-oxidizing

-200 to +500 Oxidizing

-200 to +650 Steam

Pressure 140bar Max
Tensile Strength ≥4.0 Mpa
Stress Relaxation DIN 52913 48N/mm2
Creep relaxation ASTM F-38 ≤5%
Compressibility ASTM F36A-66 40-45%
Recovery ASTM F36A-66 ≥20%
Ignition Loss

Less than 1%(450/1Hr)

Less than 20%(650/1Hr)

Seal ability ASTM F-378 fuel A ≤0.5ml/h
Electrical Resistance

900×10-6 ohm cm parallel to surface

250,000× 10-6 ohm cm Perpendicular to surface

Thermal Conductivity

120 Kcal/m Hr. Perpendicular to surface

4Kcal/m Hr. Perpendicular to surface

Thermal Expansion

5×10-6/ Perpendicular to surface

2×10-6/ Perpendicular to surface

Frictional Coefficient 0.149
PH 0-14


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