Direct BondedMag-Chrome Refractories Mag-Chrome RefractoriesRefractories have been extensively used in copperCopper making. The integrity of furnaceFurnace linings in copper productionCopper production is crucial for better productivity and quality but, with increasing impurityImpurity levels in primary raw material and use of secondary scrape are influencing lifespan of the refractory materialsRefractory material. To get a better refractoriesRefractories performancePerformance, continuous research is required to understand the corrosionCorrosion mechanism. Post-mortem analysisAnalysis of the used refractoriesRefractories and lab scale simulation are very much essential to understand the degradation mechanismDegradation mechanisms of the refractory materialsRefractory material. In this study, Magnesia chrome bricks were collected from different type of furnacesFurnace. These bricks were physically examined and infiltrationInfiltration depth of Cu-Cu2O and slagSlag inside the bricks were studied. The chemical, thermal, and mechanical stresses that degrade refractoryRefractories linings have been identified through X-ray diffraction, Scanning Electron MicroscopyScanning electron microscopy/Energy-Dispersive X-ray Spectroscopy, X-ray fluorescence methods. The effects of temperature and fayaliteFayalite slagSlag on infiltrationInfiltration depth and microstructural evolution in the matrix was also studied. The outcome of the post-mortem study and the lab scale simulation tests allowed a more comprehensive understanding of the degradation mechanismDegradation mechanisms and help us to designDesign more performancePerformance-oriented refractoriesRefractories.