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How to calculate cast steel cost?
The calculation of cast steel parts are
very complex. It need many professional knowledge to cast steel
production processes, material composition and costs etc. However,
we could introduce some main aspects for buyers to get an
approximate estimation to the cast steel costs.
If you want to calculate the cast steel
casting prices by yourself, please use our tool "Cast
Steel Price Calculator".
1. Machining cost
If your parts need machining process, then you must consider the
machining costs separately. The accurate machining cost needs
detailed working time of machining, which is too difficult for
non-technical staff. Moreover, it also related with the annual
demand, man-hours rate, machines used and tolerance requirements. If
you inquires from several suppliers, I bet you will get several
different offers to the machining costs, and sometimes, they have
very large different. So, it is too difficult for non-technical
staff to estimate the machining costs.
2. Material composition
According to your required material grades and standard, we could
know their material composition, e.g. the content of carbon,
silicon, manganese, sulfur, phosphorus, chrome, molybdenum, nickel,
copper etc. So, the steel
foundries could calculate the unit cost per ton according to
their percentage of composition. This unit cost will be the basic
cost to the materials. Of course, you need to know the prices of
these materials, especially the expensive alloys such as Cr, Mo and
Ni.
3. Production process
Normally, for the cast steel,
they usually could be produced by
sand casting process, shell
molding process, lost wax investment casting process by
water glass or silica sol.
In China, making cast steel by shell molding process is not as
common as overseas. Actually, it is seldom.
Sand casting is the cheapest production method, but it is
suitable to produce middle and large sizes of steel castings with
low requirements to the dimension tolerances and surface qualities.
Investment casting processes are suitable for small steel castings
with high requirements, but water glass investment casting is more
costly than sand casting process, and silicon sol investment casting
is more expensive than water glass casting.
Therefore, you need to choose the suitable casting process according
to the sizes, weights, complexity, dimensional tolerances and
surface quality requirements. The most important differences are
size and tolerance. Different production process will cause
different production cost.
In addition, there are many other factors that affect the cast
steel cost, such as annual demand, extra heat treatment, surface
coating and painting etc.
When you read to here, you must still be confused to how to
calculate the cast steel cost. Actually, the estimation need
professional experiences and specific steel castings, but at least
you could know what are affecting the cast steel prices, moreover,
on the website of Dandong Foundry in
China, you could know the latest cast steel prices by sand casting
process.
f you want to calculate the cast steel
casting prices by yourself, please use our tool "Cast
Steel Price Calculator".
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