... ,DIN,GB 2.Material:25Cr35Ni+MA 3.ISO9001:2008 Heater Radiant Coil1.Standard:ASME,ANSI,ASTM,DIN,GB2.Material ... share a common stack, and the height of the heater may vary from 30 to 50m.Before the 1960s, ... single cell furnace is well over 150,000 mta.Pyrolysis heater radiant coil characteristics(single heater range)Number of coils 2- ... drop,KPa10-200Ethylene capacity,mta20,000-250,000 Heater Radiant Coil