Stopper Refractory Sleeve Brick

  • Stopper Refractory Sleeve Brick

Product Description And Parameters

Excellent resistance to acid and alkali corrosion

Working temperature:1350℃ -1650℃

Introduction

1.Made by bauxite clinker and binder through Crushing,Mixing,Shaping,Drying and high temperature Sintering.

2.Al2O3 content is 48%-80%.

3.Main mineral components are corundum and mullite phases.

4.Refractoriness is usually above 1770℃,refractoriness under load is 1420-1550℃.It is a neutral refractory material so that it enjoys excellent resistance to acid and alkali corrosion.

5.Working temperature:1350℃ -1650℃.

Item

Index

International code name

SK35

SK36

SK37

SK38

SK40

Al2O3 %

≥48

≥55

≥65

≥75

≥80

Fe2O3 %

≤2

≤2

≤2

≤2

≤2

Refractoriness ℃

≥1750

≥1770

≥1790

≥1790

≥1790

Apparent porosity %

≤22

≤22

≤23

≤23

≤21

Cold crushing strength Mpa

≥39

≥44

≥49

≥54

≥65

Refractoriness under load(0.2MPa)℃

≥1420

≥1470

≥1500

≥1520

≥1530

Reheating Linear Change (1500℃ 2h) %

+0.1~ -0.4

*1450℃

+0.1~ -0.4

+0.1~ -0.4

+0.1~ -0.4

+0.1~ -0.4

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