37 holes clay bricks

clay brick 1, good quality, reasonable price clay brick 2,low porosity 3,normal and high temperature strength

clay bicks used in blast furnace

Items                                                           Index

                                                         ZGN-42                          GN-42

Al2O3                                                      ≥42                            42

Fe2O3                                                     ≤1.6                           1.7

Refractoriness                                         ≥1750                       1750

refractoriness under load of 0.2MPa      ≥1450                       1430

1450,3h                                                      0                               0

                                                                   -0.2                          -0.3

Apparent porosity                                       ≤15                         16               

Cold crushing strength /MPa                     ≥58.8                      49.0

                                                                                                     

                                                                                   

 

 

                                                                                  

37 holes clay bricks