Anthydrous Stemming Taphole Clay, Packaging Type : black

Anhydrous Stemming Taphole Clay
Refractory Anhydrous Stemming (Taphole Clay)
Stemming is one kinds of refractory material used for block the taphole,it is devided into enhydrous Stemming and anhydrous stemming .
1.Enhydrous stemming used for low pressure,low degree of intensive smelting for small and medium blast-furnace.
2.Anhydrous stemming used for high pressure,high degree of intensive smelting for medium and big blast-furnace.
 
 physical and chemical index
 
Item Enhydrous stemming Anhydrous stemming
Al2O3 %       12-40 ≥20
Sic % 1.0-4.0 4.0-8.0
C % 15-25 15-30
Cold Crushing Strength(Mpa) 3.0-7.0 6.0-12
Obvious Porosity ≤40 ≤40
Bulk Desity (gcm3) ≤1.4 ≤1.8
Application    Be used to block the taphole