BOF

Basic oxygen steelmaking is a primary steelmaking process for converting molten pig iron into steel by blowing oxygen through a lance over the molten pig iron inside the converter. Exothermic heat is generated by the oxidation reactions during blowing.
The refractory lining of basic oxygen furnaces works in severe conditions ofhigh temperature and oxidizing atmosphere. The lining wear is fastest in the zone of contact with the oxidizing slag (slag line).
Refractory bricks for lining basic oxygen furnaces are made of either resin bonded magnesite or tar bonded mixtures of magnesite (MgO) and burnt lime (CaO). The bonding material (resin, tar) is coked and turns into a carbon network binding the refractory grains, preventing wetting by the slag and protecting the lining the from chemical attack of the molten metal.

KR FILL85

KR FILL85

Application:
‣ Filling in BOF Back up area.
Service Temp.:
‣ 1650ºC Max.
Base Material:
‣ High Purity DBM with binder.
Special Features:
‣  High Filling Density with very good ability to form Cake.

KR RAM 84

KR RAM 84

Application:
‣ Ramming in BOF Back up area.
Service Temp.:
‣ 1650ºC Max.
Base Material:
‣ High Purity DBM with binder.
Special Features:
‣ High Ramming Density and to be used in both Hot & Cold Condition

KR RAM 95

KR RAM95

Application:
‣ Ramming in BOF Taphole Annular space & Surrounding area.
Service Temp.:
‣ 1650ºC Max.
Base Material:
‣ High Purity DBM with binder.
Special Features:
‣ High Volume Stability, Resistance to Corrosion & Spalling.

KR RAM 95 SPL

KR RAM 95 SPL

Application:
‣ Ramming in BOF Taphole annular space & Surrounding area.
Service Temp.:
‣ 1650ºC Max.
Base Material:
‣ High Purity DBM with Chrome bond.
Special Features:
‣ High Volume Stability, Resistance to Corrosion & Spalling.

KR GUN 84S

KR GUN 84S

Application:
‣ Gunning in BOF Top cone.
Service Temp.:
‣ 1650ºC Max.
Base Material:
‣ High Purity DBM with Special Binder.
Special Features:
‣ Excellent Stick ability with Low Rebound Loss.

KR GUN 84 P

KR GUN 84 P

Application:
‣ Gunning in BOF Top cone.
Service Temp.:
‣ 1650ºC Max.
Base Material:
‣ High Purity DBM with Phosphate Bond.
Special Features:
‣ Excellent Stick ability with Low Rebound Loss& Good affinity for slag Coating.

KR GUN 90CR

KR GUN 90CR

Application:
‣ Gunning in BOF Taphole area.
Service Temp.:
‣ 1700ºC Max.
Base Material:
‣ High Purity DBM with Chrome Bond.
Special Features:
‣ Good Resistance to Corrosion & Erosion to Slag

KR GUN 92 SPL

KR GUN 92 SPL

Application:
‣ Gunning in BOF Taphole surrounding area.
Service Temp.:
‣ 1700ºC Max.
Base Material:
‣ High Purity DBM with Special Binder.
Special Features:
‣ Good Resistance to Corrosion & Erosion to slag.

KR PATCH 85

KR PATCH 85

Application:
‣ Patching in BOF worn out area.
Service Temp.:
‣ 1650ºC Max.
Base Material:
‣ High Purity DBM with Special Binder.
Special Features:
‣ Melts & covers the worn-out area. Excellent sticking property.

KR PATCH 90

KR PATCH 90

Application:
‣ Patching in BOF worn out area.
Service Temp.:
‣ 1700ºC Max.
Base Material:
‣ High Purity DBM with Special Binder.
Special Features:
‣ Highly compatible with BOF Lining & Excellent slag Stick ability.

KR PLAST 90M

KR PLAST 90M

Application:
‣ BOF Leap area.
Service Temp.:
‣ 1700ºC Max.
Base Material:
‣ LF Bauxite & Calcined Alumina.
Special Features:
‣ High Refractoriness, Good Spalling Resistance.

KR CAST 90M

KR CAST 90M

Application:
‣ BOF Retainer area.
Service Temp.:
‣ 1700ºC Max.
Base Material:
‣ High Purity DBM with Binder.
Special Features:
‣ Used as ready mix & set in Hot condition.

About Us

Khemka Refractories Pvt. Ltd. (KRPL) was established in the year 2003 at Dhenkanal, Cuttack. KRPL is equipped with modern machineries for production as well as research & development department.

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