... boiled in 100 °C of 5% HNO330d non-foaming, non-flaking, no corrosion to base steelBase on ... boiled in 100 °C of 5% H2SO430d non-foaming, non-flaking, no corrosion to base steelBase on ... boiled in 100 °C of 5% HCL30d non-foaming, non-flaking, no corrosion to base steelBase on ... non-foaming, non-flaking, no corrosion to base steel Use Scope:Resist acid dew point corrosion for furnace, flue ...