Brief introduction: HLG852 multi-layer graphite composite board is a multi-layer graphite and stainless steel flat composite reinforced graphite plate, can be widely used in petrochemical, power generation, shipbuilding, paper and other industries of steam pipelines, boilers, heat exchangers, heating equipment, auditions, valves, flues and other parts of the sealing material has high requirements for high temperature resistance and sealing performance. Performance parameters: Thickness: 1.0mm~3.0mm or customized as needed Size: 1500mm×1500mm or customized as needed Graphite ash: ≤2% Graphite purity: ≥98% Compression ratio: 45% Springback rate: 37% Leakage rate: 1.15*10-4 Maximum use temperature: 580 °C (working temperature ≥ 480 °C, please confirm with our company whether it is applicable) Maximum operating pressure: 250 bar