DESCRIPTION

A mild steel wire mesh reinforced, high quality asbestos free material which complies with the test requirements for BS7531 Grade X. Composed of aramid/inorganic fibres, bonded with Nitrile elastomer. The formulation gives the material good chemical stability and an excellent resistance to creep at high temperature. This material has a fine, mild steel mesh reinforcement and is graphited.

SERVICE

High temperature applications. It is suitable for: gases, oils, solvents and high pressure steam, most dilute acids and alkalis and oxygen. The mild steel wire reinforcement is particularly suitable for absorbing vibration and applications requiring a higher load bearing capacity.

 

Max recommended temperature : SHORT TERM 450°C

Max recommended temperature : OPERATING 350°C

Max recommended temperature : OPERATING STEAM 220°C *

Max recommended pressure : 16.4MPa / 166 BAR

 

These temperature and pressure guides cannot necessarily be used simultaneously and may not apply to all thicknesses. The operating temperature for non-asbestos sheet materials is related to the thickness of the material. Thinner materials offer better temperature and pressure properties.

 

 APPROVALS/COMPLIANCE

Complies with BS specification 7531 Grade X

ALL PRESSURES AND TEMPERATURES ARE SUBJECT TO INDIVIDUAL APPLICATION

TYPICAL PHYSICAL PROPERTIES ‘X’ WIRE REINFORCED NAF

Thickness * 1.5mm *
Density 1.97 g/cm³
Tensile Strength ASTM F152 20 MPa
Compression ASTM F36J 9%
Recovery ASTM F36J 60%
Residual Stress BS7531 (300°C) 29.5 MPa
Fluid Immersion (thickness
increase)
ASTM Oil No. 1 1.5%
Fluid Immersion ASTM Oil No. 3 2.5%
Fluid Immersion ASTM Fuel B 2.5%
ASTM Fuel B Thickness Increase 2.2%