There's no such word as semiproduct in normal English.
Regardless of whether it is the finished product or not, a steel sheet is still a product; it has been produced from raw materials.
I would think 'component' would be more appropriate, but there are lots of industrial in-words, so as Tragicomic says, there's no reason you can't use semiproduct so long as your colleagues understand it.
english.stackexchange.com/users/None/
The word you are asking for is semifinished or semiprocessed , which are adjectives; the nouns you would use are semifinished product , or semiprocessed product .
english.stackexchange.com/users/252/kiamlaluno
To tackle this from yet another angle for good measure, there is the word prefabrication , which refers to the process of producing "semiproducts" which are later assembled to the final product on site: The most widely-used form of prefabrication in building and civil engineering is the use of prefabricated concrete and prefabricated steel sections in structures where a particular part or form is repeated many times.
[...] Prefabricated bridge elements and systems offer bridge designers and contractors significant advantages in terms of construction time, safety, environmental impact, constructibility, and cost.
[...
S]mall, commonly-used structures such as concrete pylons are in most cases prefabricated.
Radio towers for mobile phone and other services often consist of multiple prefabricated sections.
Modern lattice towers and guyed masts are also commonly assembled of prefabricated elements.
Prefabrication has become widely used in the assembly of aircraft and spacecraft, with components such as wings and fuselage sections often being manufactured in different countries or states from the final assembly site.
english.stackexchange.com/users/300/RegDwigнt
One more possibility, depending on the nature of the material, would be "assembly" or even "sub-assembly", especially when such a thing can be serviced or replaced in isolation.
A car, for instance, might have a fusebox assembly, which can be removed as a unit, or a fuel sensor sub-assembly, which includes not only the sensor itself but also the connecting wire, mounting bracket, tube, and screws.
english.stackexchange.com/users/2490/Hellion
If you're talking about production line, there is technical term called WIP (Work In Process).
So you'd better simply call it WIP material or in process material , which means it's not finished yet.
About computer, there are many different things, if that's a piece of code that's called snippet .
Also component and module are used.
Modules are like blocks of info and editable info that can be placed anywhere.
Components are parts of the functionality of the system.
(Gallery, Address book and so on)
english.stackexchange.com/users/3782/Manoochehr
This may be usage that is specific to your industry, and if you call it a semiproduct and the people you work with understand it, it should be fine.
I've heard it called production material , which is different from raw material in that it is used in the production process but is not actually converted into a new and finished product.
english.stackexchange.com/users/2972/Tragicomic
This question is related to industry and manufacturing. I'm wondering if there is a word "semiproduct". We use it to describe a piece of material - for example steel sheet, pipe, elbow, dome, U-profile, … that could is not a product itself, but will be later used in the manufacturing process. But it's not raw material either, it's something in between.  Is there a  better  correct word that would collectively describe these things?
Is there such a word as "semiproduct"?
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<single-word-requests>
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english.stackexchange.com/users/3707/Axarydax
There is no such word in English as "semiproduct". However, there are many other terms that may be appropriate, such as "semifinished", "prefabrication" or "component". However, it may be that the term "semiproduct" is specific to your industry, and if the people you work with understand it, it should be fine. There is no such word , the word in English is "component" or "module" is an alternative, although "semiproduct" may be industry-specific in the asker's case. "Semifinished" or" semiprocessed" resulting in "semifinished/semiprocessed" products is the correct term. "Prefabrication" is another term whereby by "semiproducts" are processed to be used in bigger structures. Depending on the type of work involved, "assembly" or "sub-assembly" could also be the correct terms or "production metal". Similarly, on production lines, there is a term called Work in Progress or WIP meaning the product has not been fully completed. This could be a term that could be used.
There is no such word in English as "semiproduct". However, there are many other terms that may be appropriate, such as "semifinished", "prefabrication" or "component". However, it may be that the term "semiproduct" is specific to your industry, and if the people you work with understand it, it should be fine. Terms like 'component' or 'semifinished/ semiprocessed product' could be used, depending on the context. WIP (Work In Process) could be used, or semiproduct or another term could be used by your own industry.
There's no such word as semiproduct in normal English. You could use semifinished or semiprocessed product. Alternatively use assembly, sub-assembly, production material, or work in process (WIP). However it may be specific to your industry, and if you call it a  semiproduct  and the people you work with understand it, it should be fine.   There is no such term as "semiproduct" in English. However, if your colleagues understand you when you say "semiproduct", then it should be fine to use the term. Otherwise, what this material is called will vary from person to person. Some potential names include "semifinished product", "production material" or "work in process".
The word does not exist. Semifinished Prefabrication "assembly" or even "sub-assembly" WIP used in  Also  component  and  module  are used production metal
Terms like 'component' or 'semifinished/ semiprocessed product' could be used, depending on the context. WIP (Work In Process) could be used, or semiproduct or another term could be used by your own industry.
There is no such term as "semiproduct" in English. The answer will be subjective, with terms such as "semifinished product", "production material" or "work in process" being used. If people understand what you mean when you say "semiproduct", then it should be fine.