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KT Refractories US Company

Calcium Aluminate Clinker &
High Purity Fused Calcium Aluminate Cements

Calcium Aluminate Clinker (cement) is a great choice of refractory raw material for monolithic refractories, and in some cases for refractory bricks as well. Calcium aluminate offers the flexibility to work with has allowed refractory castable technology to grow from simple conventional gun mixes and castables to formulations and installation systems that have significantly enhanced the refractory products' longer lasting, lower cost properties.

Refractory Raw Material - Alumina Bubble, Bubble Alumina

Monolithic refractory technology has grown to include calcium aluminate cements in many products with enhanced properties and installation systems such as low cement, ultra-low cement, low moisture, high density, self-flowing, pump-able and formless (shotcrete) castables.

KT refractories offer the full range of calcium aluminate clinker /cement, allowing the refractory formulator to benefit of maximization the cost / benefit ratio. Our plant in China manufactures cements with alumina content (purity level) ranging from 40% to 80%. All of these cements offer a high level of the calcium aluminate (CA) phase, well known for its flow-ability and rapid strength gain.

Calcium Alumina Clinker/ Cement is made from calcium, alumina and small quantities of other raw materials, mixed in proper proportion, and fused. The composition of the main phase:C12A7,C3A,C2S etc. Calcium Alumina Clinker/ Cement has great features like

  • Low melting point, low Melt dreg viscidity, high mobility, short time become dreg
  • High dreg and material sulphur, good desulphurization, dephosphorization, deoxidetion, can absorb the impurity
  • Widely used in the process of LF,SKF,VHP, can increase the life-span of the ladle

    For Aluminate Cement, please click here. Contact KT refractories for Calcium Aluminate Clinker, Calcium Aluminate Cement, or other refractory raw material to save you both time and money!

    Call us at 1-877-365-2995 or email us at for your refractory raw material, chemical additives or minerals need!

    Calcium Aluminate Clinker / Cement Data Sheet:



    Fusing Type
    KTS-5 KTS-6
    Chemical Composition (%) TiO2 3-5 3-5
    Al2O3 38-42 36-41
    Fe2O3 1.5 1.5
    CaO 48-52 49-54
    MgO ≤1.5 ≤1.5
    TiO2 ≤2.5 ≤2.5
    Test standard KTB01013-2004
    Packing 25 kg/bag or based on buyers requirement
    Usage Metallurgy

    High Purity Fused Calcium Aluminate Cements Data Sheet:



    AL-65 AL-70 AL-75 AL-80
    Chemical Composition (%) Al2O3 63.5-66.5 68.5-71.5 73.5-76.5 78.5-81.0
    CaO 32.5-34.0 26.5-30.5 24.0-26.0 17.0-20.0
    SiO2 ≤0.5
    Fe2O3 ≤0.5
    Specific Surface Area
    (cm2/g) ≥ 5000
    ≥5000 ≥5500 ≥7000
    Setting time Initial setting (min) ≥40 ≥45 ≥30 ≥15
    Final setting (h) ≤6 ≤6 ≤6 ≤6
    Strength Cured for 24h (MPa) Bending Strenght ≥6.0 ≥5.0 ≥4.5 ≥4.0
    Compressive Strength ≥45.0 ≥40.0 ≥40 ≥35
    Refractoriness (°C) 1560 1560 1790 1790
    Test standard KTB01013-2004
    Packing 25 kg/bag
    Usage Monolithic additives