::Changzhou Sunai Metallurgical Refractories Co.,Ltd::

Refractories　For　Tundish

　Monotithic　Refractories　For　Tundish

Material		Magnesia	Aluminium-Magnesia	Magnesia	Aluminium	Aluminium	Aluminium
Brand		SN-MT85	SN-AMJ3	SN-MD90	SN-LJ70X	SN-LJ55	SN-LJ50X
Chemical Composition ％	MgO	≥85	≥65	≥90	-	-	-
Chemical Composition ％	Al₂O₃	-	≥10	-	≥70	≥55	≥50
Fire-resistant degree		≥1820	≥1800	≥1820	≥1820	≥1780	≥1760
Modulus of rupture MPa	110℃×24h		≥5	≥6	≥6	≥5	≥5
Modulus of rupture MPa	1500℃×3h	≥2	≥6	≥4	≥7	≥7	≥7
Cold Compressive Strength MPa	110℃×24h		≥35	≥55	≥35	≥30	≥30
Cold Compressive Strength MPa	1500℃×3h	≥10	≥70	≥45	≥65	≥60	≥60
Bullk Desity g/cm³	110℃×24h	≤2.1	≥2.7	≥2.7	≥2.7	≥2.2	≥2.2
Permanent linear chage ％	1500℃×3h	-2.1～±0.5	±1.0	±1.0	±1.0	±1.0	±1.0
Proportion of water during construction ％		18±3	6.5±0.5	6±0.5	6±0.5	6.5±0.5	6.5±0.5
Application area		Coating mix for tundish	Impact plate of tundish	Skimming wall of tundish	Skimming wall impact plate of tundish	The tundish and ladle safty lining	Tundish cover and ladle root