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Help CenterSteel Billet & Rectangular Steel Billet，Q235B、Q355B、20#、45#
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Product Details of Steel Billet
Steel billet is a semi-finished steel product made from molten steel refined in steelmaking furnaces through the continuous casting process. As a core raw material for rolling various finished steel products, it features a dense internal structure and regular dimensions, suitable for subsequent deep processing such as rolling and forging.
Product Classification
It is mainly divided into square billets, rectangular billets and round billets by cross-section shape, excluding stainless steel. Square billets are mostly used for rolling deformed steel bars, round steel bars, wire rods, section steel and other products; rectangular billets are mainly used for rolling medium and heavy plates, hot-rolled coils and other plates; round billets are commonly used in the production of seamless steel pipes and various shaft forgings.
Common Specifications
Common cross-section sizes of square billets include 120mm×120mm, 130mm×130mm, 150mm×150mm, 165mm×165mm; common sizes of rectangular billets include 150mm×330mm, 150mm×380mm, 165mm×330mm, etc.; diameters of round billets range from Φ150mm to Φ450mm, with conventional fixed lengths of 6m, 9m and 12m. Custom cutting lengths are also available according to customer requirements.
Material & Executive Standards
Main materials include carbon steel, high-quality carbon structural steel, low-alloy high-strength steel, etc. Common grades include Q235B, Q355B, 20#, 45#, etc. Products are produced in strict accordance with national standards such as GB/T 14994, GB/T 699, GB/T 1591, and the chemical composition, mechanical properties and dimensional deviations all meet standard requirements.
Product Performance
Steel billets have a smooth surface without cracks, inclusions, heavy skins and other defects, with high internal density, good plasticity and ductility. They form stably during high-temperature rolling, ensuring the strength and service performance of downstream finished steel products, and are suitable for construction engineering, machinery manufacturing, auto parts, steel structure processing and other fields.
Packaging & Delivery
Products are packed in bare bundles with firm strapping for easy loading, unloading and transportation. Bulk or bundled packaging can be provided according to customer needs. Delivery date is 5-7 days after order confirmation. Various logistics methods such as sea transportation and land transportation are supported, and delivery can be made to domestic ports and designated receiving locations. Original factory quality certificates are provided with the goods to ensure product traceability.
Application Fields
It is widely used in the production of section steel, steel bars and plates for building structures, the processing of bars and forgings for machinery manufacturing, as well as seamless steel pipes, auto parts, shipbuilding, bridge engineering and other industries, serving as an indispensable basic raw material in the deep processing industrial chain of steel.
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