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Gasket board mark B
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Gasket board mark B

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Characteristics

Board of mark "B" is used for production of sealing in flange and other connections used in oil medium, water and petrol. It is produced in sheets and rolls. Size of sheets and rolls is agreed with buyer. 

 
Rate for mark "B":
 
GOST 9347-74
Thickness, mm 0,3±0,03
0,5±0,05
Density,g/sm3, not less
0,7
Tensile strength in cross direction, МPа (kgs/mm2), not less: 20 (2,0)
Absorbability with full-immersion, % not more:
-oil;
-water;
-petrol;
-
120
-
Linear deformation in cross direction after staying sample   in humidistat, %, not more ±0,8
Moisture, % 10±2

 

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