Magnesia Carbon Bricks (MgO-C) – BOF/EAF & Ladle Refractories | Wedge India

Making World Class High Performance Refractory Products Available in India at Lower Price

What are Magnesia Carbon Bricks?

Magnesia Carbon bricks combine high-purity MgO with flake graphite (fixed carbon) to deliver outstanding slag/metal corrosion resistance, thermal shock performance, and spalling resistance—ideal for Basic Oxygen Furnaces (BOF), Electric Arc Furnaces (EAF), converters and steel ladles. Wedge India supplies dense, extra-dense and “Super” series MgO-C grades engineered for long lining life in high-wear zones.

Key Benefits of Magnesia Carbon

High hot strength and excellent slag corrosion resistance for BOF/EAF slag line and impact zones.
Thermal shock & spalling resistance from optimized graphite/antioxidant design.
Extra-dense options for very high wear areas → longer campaign life.
Tailor-made specifications to suit furnace, process and zone.

Typical Applications & Zones

BOF/LD converters: mouth, slag line, trunnion, cone.
EAF: slag line, hot spots, safety linings.
Steel ladles: slag line, impact pads, bottom, safety lining (AMC/ASC options also available).

Featured MgO-C Grades & Specs

(Full datasheets available on request.)

Grade	MgO %	Fixed C %	BD (g/cc)	A.P. % (orig)	A.P. % (coked @1000 °C)	CCS (kg/cm²)	MOR (kg/cm²)
WSILVERLINE-I	98	4	3.02	5.5	11	450	150
WSILVERLINE-II	98	8	2.92	5.0	12	400	130
WSILVERLINE-III	98	13	2.88	5.5	12	350	120
WSILVERSTAR-I	97	4	3.08	4.0	11	450	150
WORICARB-I	97	4	3.02	6.0	12	500	150
WORICARB-II	96	8	2.96	6.0	12	450	140
WOXIMAG-II	94	8	2.95	7.0	14	400	130
WMAGARC	94	16	2.85	7.0	14	300	100

Data source: Wedge India product catalog tables for Magnesia Carbon bricks.

Notes: Super/extra-dense versions (e.g., SUPER WSILVERSTAR, SUPER WMAGARC) and many additional grades are available; specifications can be tailor-made to international requirements.

Supply Scope (related steelmaking refractories)

Slide gate plates/nozzles/well blocks, AMC/ASC ladle bricks, basic gunning & ramming mixes, low-cement high-alumina castables for repairs—available to match your MgO-C lining.

Magnesia Carbon Bricks

Q1. What are Magnesia Carbon (MgO-C) bricks?
Basic refractory bricks made from high-purity MgO and flake graphite for extreme slag/metal corrosion and thermal-shock resistance.

Q2. Where are MgO-C bricks used?
BOF/LD converters, EAF slag lines/hot spots, and steel ladle slag/impact zones; also in high-wear furnace areas.

Q3. What advantages do MgO-C bricks offer vs high-alumina bricks?
Superior slag non-wetting, thermal-shock resistance, and spalling resistance in basic steelmaking slags.

Q4. What is the typical composition?
MgO ~94–98% with fixed carbon ~4–16% (plus antioxidants like Al/Si/Mg/B₄C depending on duty).

Q5. What temperatures can they handle?
Typically suitable for ~1350–1600+°C service (grade/zone dependent).

Q6. How do I select the right MgO-C grade?
Match to zone & slag: share slag basicity (CaO/SiO₂), temperature profile, drawings/BOQ, and target campaign life for a tailored recommendation.

Q7. Do they require special mortar or preheating?
Use compatible basic/carbon-containing mortars and follow a controlled preheat/dry-out to minimize oxidation and thermal shock.

Q8. What are common sizes/shapes?
Standards (straights, wedges, keys) and custom specials for slag line, mouth, cone; drawings per IS/GB/T supported.

Q9. How should MgO-C bricks be stored and what’s the shelf life?
Store dry, on pallets, under cover; typical shelf life ~12 months in sealed packaging (check grade guidance).

Magnesia Carbon Bricks

FAQs for Magnesia Carbon (MgO-C) Bricks

相關產品