Bricks · Mag-Carbon Bricks
MgO-C bricks for the harshest steelmaking environments
Magnesia-carbon bricks combine high-purity dead-burned magnesia with graphitic carbon to deliver thermal-shock resistance and slag corrosion resistance no straight magnesia brick can match. Specified for BOF converter slag-lines, ladle slag-zones and EAF hot-spots where the lining sees aggressive slag chemistry and heavy thermal cycling.
5-20%
Carbon Range
96%+
MgO Purity
ULC
Ultra-Low Carbon Available
EAF/BOF
Field Proven
Overview
Mag-Carbon Bricks — what they are, when to specify
Mag-carbon bricks (MgO-C) are resin- or pitch-bonded refractory bricks that wed dead-burned magnesia (DBM) or fused magnesia (FM) with crystalline graphite, plus metallic antioxidants (Al, Si, Mg-Al alloy). The carbon network resists slag wetting, while the magnesia matrix resists basic-slag attack. Result: longer ladle and converter campaigns with controlled wear.
Grades
Stocked grades — pick by service condition
Indicative properties only. Final specification is set per application after we review your operating envelope.
| Grade | Composition | Service Limit | Typical Application |
|---|---|---|---|
| MC-5 (Standard, 5% C) | MgO 96%, C 5% | BOF + Ladle barrel | Steel ladle barrel, converter lower stadium |
| MC-10 (Slag-Line, 10% C) | MgO 95%, C 10% | Aggressive slag | Ladle slag-line, BOF charge pad |
| MC-14 (Premium, 14% C) | MgO 93%, C 14% | EAF hot-spots | EAF hot-spot panels, BOF tap-pad, ladle bottom |
| MC-18 (Heavy Duty, 18% C) | MgO 90%, C 18% | Severe thermal shock | BOF tap-side, ladle slag-line under heavy desulph |
| ULC (Ultra-Low Carbon, ≤2% C) | MgO 97%, C ≤2% | Clean steel grades | IF/CRNGO ladle linings, pickup-sensitive heats |
| Fused-Magnesia Premium | FM 97%, C 12% | Premium ladle metallurgy | Long-campaign ladle slag-lines, RH degassers |
Bricks supplied in standard ISO 5019 shapes and customer-drawing specials. Anti-oxidant package (Al, Si, Mg-Al alloy) tuned per application. Resin-bonded standard; pitch-bonded available on request.
Datasheets available on request — email punesales@chaneyco.com with your specification and we will send the matching PDF.
Applications
Where mag-carbon bricks are specified
Steel & Foundry
BOF converters, EAF furnaces, steel ladles, RH degassers
Secondary Steelmaking
AOD, VOD, ladle furnace stations
Why Chaneyco
Three reasons buyers source mag-carbon bricks from us
Stocked at Chakan, dispatched fast
Mag-Carbon Bricks are held at our Chakan plant in Pune. Standard grades dispatch same-day to plants in the Pune industrial belt and within days pan-India by road or rail.
Spec advice before quote
Choosing the right grade for the operating envelope makes a much bigger lifecycle-cost difference than haggling on the cheapest grade. Our technical team will recommend by zone before quoting.
ISO 9001:2015 audit-ready
Every batch ships with composition and dimensional QC records, supported by our ISO 9001:2015 certification (Cert. 11553, AQSR / USAC accredited, valid through 17 Sept 2027).
Frequently Asked
Mag-Carbon Bricks questions, answered
How do I choose between low and high carbon grades?
Higher carbon improves slag resistance and thermal-shock tolerance, but transfers more heat (hotter shell) and risks pickup in clean steel grades. Steel ladle barrels typically run 5-10% C; slag-lines and EAF hot-spots run 12-18% C; clean-steel ladles use ULC at 2% C or below. We will recommend grade by zone after reviewing your slag chemistry and grade-mix.
Do you offer post-mortem analysis?
Yes. Our technical service team performs lining post-mortem after each campaign — wear pattern photos, residual thickness mapping, infiltration analysis — and feeds that into the next-campaign brick spec.
Can you supply ULC for IF and CRNGO grades?
Yes. Ultra-low-carbon (≤2% C) bricks are stocked for clean-steel ladle applications where carbon pickup is unacceptable.
Talk to a Refractory Engineer
Tell us about your application
Share the basics — furnace type, operating temperature, atmosphere, the lining zone you are specifying. Our technical team responds within one working day with grade recommendation, indicative quote and lead time.