Calculation and Analysis of the Thermal Stress on Blast Furnace Staves of Different Material

The thermal stress on the hot side of cast ironstaves and copper staves on the same condition was analyzed. It was known by calculating that, the thermal stress on the copper staves is smaller then copper sbave, and it is far less than the extension strength of the copper stave, so there is few cack occuring on the staves. Therefor, the property of the copper staves is better than that of the staves of cast iron.