High Quality and Longest Service Life Stopper

• Refractoriness (℃): 1770< Refractoriness< 2000
• Feature: Long Time Materials
• Type: Refractory Material
• Shape: Block
• Material: Alumina Block
• Size: According to The Customers Requirements Size
• Model NO.: S0 S1 S2 S3 S4/1 S4/2 S5 S6
• Transport Package: Wooden Box
• Specification: Iso9001: 2008
• Trademark: WAM
• Origin: China
• HS Code: 69032000
• Production Capacity: 4000 Mt/Year

Product Description

The stoppers are used in tundish serving the function of regulating the flow of molten steel from tundish to mould. It also has the function of preventing the nozzle from blocking by blowing argon to the tundish nozzles. The stopper produced by our company is characterized by high strength, high erosion resistance and high thermal shock resistance. The bigest stopper we can produce is S6. The quality can be designed to meet the longest service life. Moreover, we could produce them according to the customers requirements size.
 

Mark Item	Body	Head
	WAM-MBSB	WAM-MBSHA	WAM-MBSHB
Al2O3	≥55	≥55
MgO		18-25	≥60
ZrO2
C	≥22	≥8	≥13
B.D g/ cm3	≥2.5	≥2.65	≥2.6
A.P %	≤14	≤13	≤13
MOR Mpa	≥6	≥7	≥7
CCS  Mpa	≥23	≥25	≥25
Application	General using body material	General using head material	Used for Ca-Si steel.