Speciality Monolithic
Blast Furnace Anhydrous Tap Hole / Mudgun Mass
Specialized anhydrous tap hole clay developed for blast furnaces of various volume capacities. Formulated with resin or tar-resin binders for controlled plasticity during mudgun injection and rapid strength development to resist iron-slag erosion and ensure clean, predictable drilling.
| Grade / Type | Al₂O₃ (%) | SiC + C (%) | Resin (%) | Grain Size | B.D (110°C/24h) | CCS (900°C/2h) |
|---|---|---|---|---|---|---|
| Tap Hole Mass (Resin) | 46% | 28% | 6% | 0–3 mm | 2.2 g/cm³ | 60 kgf/cm² |
| Tap Hole Mass (Tar & Resin) | 40–44% | 26% | 2% | 0–3 mm | 2.0 g/cm³ | 60 kgf/cm² |
Heavy Duty
Blast Furnace Anhydrous Runner / Trough Mass
Available in Resin & Tar Bonded as well as Special Resin Bonded grades, formulated for blast furnace troughs from 40 m³ to 4,000 m³ capacity across India. Exhibits excellent hot metal and slag erosion resistance with smooth release and long campaign life.
| Grade / Type | Al₂O₃ (%) | SiC + C (%) | Grain Size | B.D (110°C/24h) | CCS (110°C/24h) |
|---|---|---|---|---|---|
| Anhydrous Trough Mass (Resin+Tar) | 58–62% | 20–24% | 0–5 mm | 2.2–2.4 g/cm³ | 160 kgf/cm² |
| Anhydrous Trough Mass (Spcl. Resin) | 62–66% | ≥ 20% (SiC) | 0–5 mm | 2.4–2.8 g/cm³ | 200 kgf/cm² |
High MgO
Basic Monolithics & Ramming Masses (MR-RAM)
High-magnesia refractory masses engineered for electric arc furnaces (EAF), cold and hot steel launders, induction furnaces, and burner blocks. Formulated with high MgO content (80%–86%) for supreme resistance against basic metallurgical slag.
| Product Code | MgO (%) | SiO₂ (%) | Grading (mm) | Sintering Temp (°C) | Application Temp (°C) |
|---|---|---|---|---|---|
| MR RAM-85 | 85.00% | 6.0% | 0–5 mm | 1550°C | 1700°C |
| MR RAM-86 | 86.00% | 6.0% | 0–5 mm | 1550°C | 1700°C |
| MR RAM-80 | 80.00% | 7.0% | 0–3 mm | 1500°C | 1700°C |
| MR GUN 80 | 80.00% | 7.0% | 0–3 mm | 1500°C | 1700°C |
Conventional Castables (MR-Crete Range)
Calcium Aluminate bonded refractories for applications up to 1400°C, and High Alumina grades bonded with premium refractory cement for service up to 1750°C. Delivers outstanding mechanical strength and volume stability across heating cycles.
| Product | Max Temp (°C) | Water Add. (%) | Dry Density (g/cm³) | CCS (kgf/cm²) | Al₂O₃ (%) | Fe₂O₃ (%) |
|---|---|---|---|---|---|---|
| MRCRETE NORMAL | 1400°C | 11–12% | 2.10 | 110°C: 250 / 900°C: 200 / 1300°C: 270 | 45.0% | 4.0% |
| MRCRETE SUPER | 1450°C | 11–12% | 2.45 | 110°C: 350 / 900°C: 300 / 1400°C: 400 | 66.0% | 5.0% |
| MRC HEAT C | 1500°C | 10–12% | 2.10 | 110°C: 350 / 900°C: 280 / 1300°C: 480 | 50.0% | 1.5% |
| MRC HEAT K | 1600°C | 10–11% | 2.20 | 110°C: 350 / 900°C: 290 / 1450°C: 510 | 60.0% | 1.0% |
| MRC HEAT K(SPL) | 1600°C | 10–11% | 2.10 | 110°C: 450 / 900°C: 300 / 1450°C: 550 | 62.0% | 1.0% |
| MRC HEAT A | 1750°C | 9–10% | 2.80 | 110°C: 600 / 900°C: 420 / 1450°C: 630 | 86.0% | 0.8% |
Low Cement Castables (LC Series)
Up to 1800°CHigh-purity alumina castables with deflocculants ensuring ultra-low water demand, minimal porosity, and exceptional resistance to hot slag corrosion, metal penetration, and thermal fatigue up to 1800°C.
| Product Code | Max Temp (°C) | Water Add. (%) | Dry Density (g/cm³) | CCS (kgf/cm²) | Al₂O₃ (%) | Fe₂O₃ (%) |
|---|---|---|---|---|---|---|
| LC 45 | 1550°C | 5.0–6.0% | 2.30 | 110°C: 700 / 900°C: 800 / 1100°C: 900 | 45.0% | 1.0% |
| LC 60 | 1600°C | 5.0–5.5% | 2.50 | 110°C: 750 / 900°C: 810 / 1100°C: 900 | 60.0% | 1.0% |
| LC 80 | 1700°C | 4.0–5.0% | 2.85 | 110°C: 800 / 900°C: 900 / 1300°C: 1000 | 80.0% | 1.0% |
| LC 90 | 1700°C | 4.0–4.5% | 3.00 | 110°C: 950 / 900°C: 1000 / 1450°C: 1100 | 90.0% | 1.0% |
Insulating Castables (MRCRETE Series)
Thermal BarrierLightweight refractory castables designed for thermal efficiency in both hot-face exposure and back-up safety lining. Drastically reduces shell temperatures and heat loss in furnaces, petrochemical vessels, and boilers.
| Product | Max Temp (°C) | Water Add. (%) | Dry Density (g/cm³) | CCS (kgf/cm²) | Al₂O₃ (%) | Fe₂O₃ (%) |
|---|---|---|---|---|---|---|
| MRCRETE 11 | 1350°C | 35–40% | 1.25 | 110°C: 700 / 900°C: 800 / 1100°C: 900 | 45.0% | 1.0% |
| MRCRETE 13 | 1350°C | 30–35% | 1.50 | 110°C: 750 / 900°C: 810 / 1100°C: 900 | 60.0% | 1.0% |
| MRCRETE 15 | 1350°C | 30–35% | 1.60 | 110°C: 800 / 900°C: 900 / 1300°C: 1000 | 80.0% | 1.0% |
Fire Clay & High Alumina Mortar
Jointing MortarCeramic-setting mortars engineered for jointing refractory bricks and high-alumina blocks with high refractoriness, tight bonding, and thermal compatibility with parent refractory linings up to 1700°C.
| Product | Service Temp (°C) | Type of Setting | Al₂O₃ (%) | Fe₂O₃ (%) |
|---|---|---|---|---|
| MR-50 | 1550°C | Ceramic | 50.0% | 2.5% |
| MR-60 | 1600°C | Ceramic | 60.0% | 2.5% |
| MR-70 | 1650°C | Ceramic | 70.0% | 2.0% |
| MR-90 | 1700°C | Ceramic | 90.0% | 0.5% |
High Alumina & Basic Gunning Mass
Rapid RepairSpecialized pneumatic repair compounds for hot and cold furnace maintenance. High Alumina Gunning mass is widely utilized in steel ladles, EAF sidewalls, and ladle refining furnaces (LRF), while Basic Gunning Mass is optimized for energy optimizing furnaces (EOF) with minimal rebound loss.
| Property | High Alumina Gunning | Basic Gunning Mass |
|---|---|---|
| Primary Component | Al₂O₃ (45%–70%) | MgO (80%–85%) |
| Application Equipment | Pneumatic Gunning Machine | Hot/Cold Gunning Gun |
| Rebound Loss | Ultra Low (< 8%) | Minimal (< 10%) |
| Key Applications | Steel Ladles, EAF, Kilns | EOF, BOF, Converter maintenance |