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.


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 STEAM 250°C * Max recommended temperature : OPERATING STEAM 200°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..


Complies with BS specification 7531 Grade X 


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 ASTM Oil No. 1 1.5%
Fluid Immersion(thickness increase) ASTM Oil No. 3 2.5%
Fluid Immersion (thickness increase) ASTM Fuel B 2.2%