working lining（coating）
Excellent Erosion Resistance, Slag Resistance, and Long Service Life
working lining（coating）
Strong Corrosion Resistance and Durability
Resist erosion by molten steel and slag, extend service life and reduce refractory consumption.
Easy Application
Applied by troweling to reduce downtime and improve production efficiency.
Low Contamination
Minimal contamination to molten steel, ensuring molten steel cleanliness.
| Material | MgO / Forsterite Based | Light-weight MgO Based | MgO-CaO Based | |
| Brand | ZTM-TM70 | ZTM-TM80 | ZTM-QTM80 | ZTM-TMG15 |
| MgO (%) | 60~70 | ≥80 | ≥80 | ≥65 |
| CaO (%) | —— | —— | —— | 10~20 |
| Bulk Density (g.cm-3) | 1.8~2.2 (110, 24h) | 1.9~2.3 (110℃, 24h) | 1.2~1.6 (110℃, 24h) | 2.0~2.3 (110℃, 24h) |
| Permanent Linear Change (%) | -3.0~-0.5 (1500℃, 3h) | -3.0~-0.5 (1500℃, 3h) | -3.0~-0.5 (1500℃, 3h) | -2.0~-0.5 (1500℃, 3h) |
| Modulus of Rupture (MPa) | ≥1.0 (110℃, 24h) | ≥1.0 (110℃, 24h) | ≥0.8 (110℃, 24h) | ≥1.5 (110℃, 24h) |
| ≥2.5 (1500℃, 3h) | ≥2.5 (1500℃, 3h) | ≥1.0 (1500℃, 3h) | ≥3.5 (1500℃, 3h) | |
| Cold Crushing Strength (MPa) | ≥2 (110℃, 24h) | ≥3 (110℃, 24h) | ≥0.8 (110℃, 24h) | ≥3 (110℃, 24h) |
| ≥6 (1500℃, 3h) | ≥8 (1500℃, 3h) | ≥1.0 (1500℃, 3h) | ≥10 (1500℃, 3h) | |
Long Service Life
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Customized working lining（coating）
ZTMaterials® can be adjusted according to customers’ steelmaking process, steel grade and equipment requirements.
- Performance Optimization: Adjust resistance to hydrogen pickup, oxidation resistance, or thermal shock resistance according to specific molten steel composition.
- Material Customization: Adjust MgO content to optimize for the corrosive environments of different steel grades.
- Performance Parameters: Customize thermal shock resistance, erosion resistance and insulation properties to enhance overall lifespan.