Ethylene Plant Steam Cracker Coil Systems 1.Standard:ASME,ANSI,ASTM,DIN,GB 2.Material:25Cr35Ni+MA ... -200Process gs outlet temperature,°C750-950Clean coil metal temperature,°C900-1,080Maximum metal temperature,°C1,040-1,150Average heat absorption,kw/m2 external ... area50-120Bulk residence time,s0.1-0.6Coil outlet pressure,KPa150-275Clen coil pressure drop,KPa10-200Ethylene capacity,mta20,000 ...