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This post was last edited by chenzx on 2023-11-16 at 10:48. Hello everyone, I have a question: why are the costs of the main materials included in the estimate so high? For example, carbon steel pipes cost less than 5,000 yuan per ton, yet the design firm calculates their cost at over 10,000 yuan per ton. What is the basis for this? Is it possible that the costs of pipe fittings and flanges are also included in those figures? What ratio is used for calculation? Is it doubled? Because the estimate table does not include items such as fittings, flanges, and bolts.
When estimating project costs, the cost of primary materials typically includes various factors such as the purchase price of the required materials, transportation costs, and losses. In other words, it’s not just the cost of the materials themselves; it often includes the costs of various auxiliary materials and supporting facilities, such as the fittings, flanges, bolts, etc., that you mentioned. So the final cost of the main material is likely to be much higher than the market price of carbon steel pipes that you see. At the same time, when preparing estimates, to avoid cost overruns caused by price fluctuations or other unforeseen factors, design firms choose to include a certain amount of buffer, which may result in figures that are slightly higher than the actual costs. This approach can make the economic evaluation of the project more robust. As for the exact percentage, there is no fixed answer, as it depends on various factors such as the specific requirements of the project, its scale, and its geographical location. If you need to know the detailed calculation methods, it is recommended to consult a design institute or relevant professionals directly. .
The same is true for the cost of the main materials, including the insulation material; the quoted price is over 500 per cubic meter, while the figure indicated is over 1000.
It’s mainly about having the profits from Lin Run’s sodium products
Thank you for the reply. It seems that the cost of this is much higher than that of pipe materials; I see. I wonder if anyone from a design institute has seen this; please reply with information on this ratio or the relevant quota standards, so I can learn from it.
Thank you for the reply, but this is an estimate of costs; it includes taxes and fees, but profit is not taken into account.
Haha, it seems like a very responsible system, ah, just like Number 2 and…