Yield loss in steel processing mills is typically calculated by comparing the weight or quantity of the input material (such as steel coils or raw steel) with the weight or quantity of the output material (processed steel products) and determining the difference or percentage loss.

Here’s a general formula for calculating yield loss:

Yield Loss (%) = ((Input Weight – Output Weight) / Input Weight) * 100

To break it down further:

Determine the weight of the input material: Measure or record the weight of the steel coils or raw steel that enters the processing mill.

Determine the weight of the output material: Measure or record the weight of the processed steel products that leave the mill.

Calculate the difference: Subtract the weight of the output material from the weight of the input material to determine the yield loss in weight.

Calculate the percentage loss: Divide the weight loss by the weight of the input material and multiply by 100 to obtain the yield loss percentage.

It’s important to note that yield loss can also be calculated based on quantities or other units of measurement, depending on the specific requirements and units used in the steel processing mill. The same principles apply, but the calculations would involve the relevant quantities or units of measurement instead of weight.

Additionally, yield loss can be further analyzed to identify the reasons behind the loss, such as process inefficiencies, material handling issues, or equipment problems. This analysis helps mills optimize their processes and reduce yield losses, improving overall efficiency and profitability.