Known as being the second stage during the production of steel, steel billets are hot rolled and then used for further stages of metal casting. They are very soft and ductile, and steel bars or other products are then made by using the steel billets in various hot rolling or cold drawing applications.
They are created during extrusion or continuous casting processes and even by simply rolling ingot. They can be formed into a wide array of shapes, particularly square, rectangular and circular. They are most often used for the production of steel rods and bars, wire and hollow sections and plates.
Steel billets are not the same as steel bars and are “semi finished” casting products. It is billets that will used to create bars, pipes and all the rest.
Standards for billets vary, and each must feature the chemical composition necessary for producing the desired product. Some of the standards that apply to them include:
|• ASTM A615M||• S235J0|
|• ASTM A706M||• S235J2|
|• ASTM A711 / A7aam||• S275JR|
|• BS 4449||• S275J0|
|• GOST 380/89-94.||• S275J2|
|• GOST ST 3 S/SP.||• S355JR|
|• GOST ST 49S/SP.||• S355J0|
|• GOST ST 5S/SP.||• S355J2|
|• S235JR||• As well as some JIS and CNS standards|
Regardless of the standards it must meet, any billet is going to be readily identifiable via the coding stamped along its run. This will always include:
All billets must be guaranteed to be free of longitudinal and transverse cracks, jointing, scum, scab, shrinkage cavities and any other indications of surface and internal unsoundness that may adversely affect final product.
Other physical parameters that any billet may need to meet includes:
Recycled steel scrap and other metals may be used in the billet production process. Regardless of your requirements, be sure to inquire as to the ability of this casting option. Saving on costs while adding an ecologically minded element to any process, it is a good approach to steel billets or even larger steel blooms. In fact, this can often be a sure way of knowing that the precise chemistry required for a specific steel billet is met and/or adhered to rigorously. Making products from billets does require this attention to chemistry, and it is a primary reason for working with reputable suppliers.
A leading exporter of steel billets, Gemina provides access to the materials and products of their top quality mills in Turkey, the European Union and Asia. Manufacturers of all kinds will be able to call upon the firm to obtain the exact billets required for any sort of production process. Whether it is rebar or flat rolled materials, the steel billets will be of the precise grade required to guarantee the desired outcome.