Welded tube cost model 2023.

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Mill Cost Model - Welded Steel Tube - 2023.

Conversion costs for a typical welded tube plant

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Tube and Pipe Cost Modelling Notes and Assumptions

The Steel Costing Model

The economic model shown above indicates how tube costs can be estimated through a simple cost benchmarking approach. The predicted full cost is not meant to represent an actual cost for any real steel company. It is a notional figure only - albeit one that is built on fairly representative current input cost (e.g. electricity prices) and resource usage information.

Input Costs

Key input costs are based on average 2023 costs, with ferrous scrap at ~$350/tonne and hot rolled coil at ~$575/t. Other factor costs e.g. electricity are from other pages shown on the Steelonthenet.com website, with factor usage (energy use, yield etc) estimated by our technical experts and economists. SG&A denotes sales, general and administration cost. MHPT denotes man hours per tonne (a measure of labour force productivity). Analysis shown above was prepared in December 2023.

The Steel Product

The steel product for which costs are shown is a metric tonne of welded tube 50mm x 50mm square with a gauge of 2.5mm and made from commercial quality steel [e.g. grade S235] as produced by an averaged size non-integrated tubemaker who purchases hot rolled strip on the open market. Average labour productivity is assumed, in a Central European location. Additional costs ['price extras'] for internal or external painting or galvanising, annealing, NDT or other testing, threading etc of tubing are excluded. Note that although a HRC delivery cost of $5/tonne is included above, this cost could be considerably higher depending on plant location. Similarly, packaging costs could also be much higher than shown, depending on client geography and requirements.

The Business Environment

Site visitors are advised that all estimates shown should be adjusted to reflect the particular business environment in which the steel plant operates. Thus, electricity charges may be substantially higher during the winter season, etc. Depreciation costs above are at the low end of the range, and may be higher depending on the mill supplier. Yield performance is also average - and certainly nowhere near best practice.

Accounting Methods

Actual cost estimates may differ because of local accounting practices. The estimates above assume that 25% of labour cost are fixed - different local assumption may apply. The model above endeavours to present the economic data on the basis of standard management accounting practices - users of the model should however be clear that the model is likely to require adaptation for different accounting circumstances.

Raw Material & Other Cost Adjustments

To estimate the impact of a change in any main input (e.g. location, hot rolled steel coil cost, energy cost, or labour cost) on the total, fixed or variable production costs of any steel product (semi-finished; or flat, long, or pipe and tube finished steel) made through either main production process route (integrated steel manufacturing or electric arc steelmaking), please contact our steel cost info@steelonthenet.com.

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