Product Details
Place of Origin: Zhengzhou
Brand Name: Rongsheng Xinwei
Certification: ISO9001
Model Number: Rongsheng
Document: Product Brochure PDF
Payment & Shipping Terms
Minimum Order Quantity: 1 Ton
Price: 200-800USD
Packaging Details: Packed on wooden pallets, with water-proof cover, and tightened with plastic/steel bandages
Delivery Time: 10-20 Days
Payment Terms: TT; L/C
Supply Ability: 2000 tons/month
High Quality Magnesia Calcium Brick Refractory Bricks For Steel Making
Rongsheng supplying a comprehensive range of Mag Calcium Brick(Dolomite Brick). Mag Calcium Brick is mainly used as lining material for AOD furnace, VOD furnace and LF furnace in steel making industry.
![]()
Product Specification of High Quality Magnesia Calcium Brick
| Type | LKMG15 | LKMG20 | LKMG25 | LKMG30 | LKMG40 | LKMG50 | |
| MgO(%) | 80.3 | 76.3 | 70.3 | 66.3 | 56.3 | 43.3 | |
| CaO(%) | 17 | 21 | 27 | 31 | 41.0 | 54 | |
| Al2O3(%) | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | |
| Fe2O3(%) | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | |
| SiO2(%) | 1.3 | 1.3 | 1.3 | 1.3 | 1.2 | 1.3 | |
| Bulk density(Kg/m3) | 3030 | 3030 | 3030 | 3030 | 3000 | 2930 | |
| Apparent porosity% | 13 | 12 | 12 | 13 | 13 | 12 | |
| Cold Crushing Strength (MPa) | 80 | 90 | 80 | 80 | 80 | 70 | |
| Refractoriness Under Load 0.2MPa℃ | 1700 | 1700 | 1700 | 1700 | 1700 | 1700 | |
| Rupture strength (Mpa) | 2.5-4.5 | 2.5-4.5 | 2.5-4.5 | 2.5-4.5 | 2.5-4.5 | 2.5-4.5 | |
| Reheat test,Permanent linear change (%) | – | – 0.35 | – | – 0.61 | – | – | |
| Thermal conductivity(W/m.k)-1 | 3~4 | 3~4 | 3~4 | 3~4 | 3~4 | 3~4 | |
| Thermal expansion(%) | 800℃ | 0.8~1.0 | 0.8~1.0 | 0.8~1.0 | 0.8~1.0 | 0.8~1.0 | 0.8~1.0 |
| 1200℃ | 13.5~1.6 | 13.5~1.6 | 13.5~1.6 | 13.5~1.6 | 13.5~1.6 | 13.5~1.6 | |
| 1200℃ | 1.8~2.0 | 1.8~2.0 | 1.8~2.0 | 1.8~2.0 | 1.8~2.0 | 1.8~2.0 | |