High alumina brick 75%

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High alumina brick with 75% alumina, High refractoriness under load, High compressive strength

Description

High alumina brick with 75% alumina
1) Alumina content: 75%
2) Apparent porosity: ≤23%
3) Cold crushing strength: ≥50mpa
4) Refractoriness: 1790oC
5) Refractoriness under load in 0.2MPa: ≥1520oC
6) Permanent linear change(1500oC×2h): +0.1~-0.4