Base Raw Material Sea water magnesite Installation Dry ra mm ing Shelf Life 3- 4 months Packaging 50 kg bags Max service Temprature (?C) 1750?C Maximum Grain Size 0 - 5 mm MgO (% ) 94 SiO2 (% ) 1. 5 Setting Chemical Sintering temp 1550?C Application area Ra mm ing at Tap hole of BOF