Fire brick 1.ISO 9001 approved, 2.With high quality and competitive price, 3.Standard and special shape. NameHigh Alumina Brick and High Alumina Brick for Blast FurnaceItemsTN-80TN-75TN-60GL-65GL-55Refractoriness(°C)≥17901790177017901770Chemical Component(%)Al2O3 ≤8075606555Fe2O3 ≥22Compressive Strength(MPa) ≥60555058.858.8Refiring Linear Change Rate(%)1450°C X 3h +0.1~-0.4 +0.1~-0.4 +0.1~-0.40~0 ...