Deviation between the theoretical weight and actual weight of steel
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What is an appropriate range for the deviation between the theoretically calculated weight and the actual weight in seamless management?
It depends on the required size tolerance to determine what range of deviation is appropriate
If you purchase by the number of roots, it approaches a negative deviation； You are priced based on the delivery weight, with a large positive deviation.
We purchase in meters and the price is calculated based on the theoretical weight, but there is still a significant difference between the theoretical and actual weights; generally, this difference is positive. The extra amount requires an additional charge, yet it’s something we don’t need. How can we control the deviation between the theoretical weight we require and the actual weight of the goods delivered?
It’s because it wasn’t clearly explained when the contract was signed.
The actual weight measured on the scale generally does not differ much from the theoretical weight, as standards establish very clear specifications for size tolerances. If it is a national standard, you can refer to GB/T 17395 mentioned above for definition