Stopper Rod for Continuous Casting

The stopper has the advantages of good erosion resistance and erosion resistance, stable flow control during casting, tight closure after casting, etc.

Stopper rod physical and chemical indicators

Physical and chemical indicators：

Item	Index
	SB45	SB40
Al2O3  %	≥45	≥40
C  %	≥20	≥25
Flexural Strength  MPa	≥5.5	≥5.5
Apparent porosity   %	≤19	≤19
Bulk density  g/cm3	≥2.36	≥2.2

Head Part：

Item	Index
	MC65	MC60	AC70	AC65	AC60	MA70	MA65
Al2O3  %	/	/	≥70	≥65	≥60	/	/
MgO  %	≥65	≥60	//	/	/	/	/
Al2O3+MgO %	/	/	/	//		≥70	≥65
C  %	≥9	≥12	≥9	≥12	≥15	≥8	≥10
Bulk density  g/cm3	≥2.45	≥2.4	≥2.65	≥2.6	≥2.55	≥2.6	≥2.45
Apparent porosity  %	≤19	≤19	≤19	≤19	≤19	≤19	≤19

Rongsheng company introduction

Rongsheng Company is a professional supplier of refractory materials, with 10 years of export experience, exporting to more than 80 countries. The main products of Rongsheng Company include various refractory bricks, unshaped refractory materials, metallurgical materials, thermal insulation materials, and so on.