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Article | REF: M7903 V2

Rolling of long products - Rolls, sizing, defects

Author: Claude BATAILLE

Publication date: December 10, 2025 | Lire en français

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    1. Cylinders and tools

    1.1 Cylinders

    The choice of cylinder must meet the following requirements:

    • sufficient tensile strength to withstand rolling forces;

    • sufficient surface finish retention;

    • the greatest possible wear resistance, with the constraint that the cylinder must be able to be re-machined.

    In simple terms, steel, which is stronger than cast iron, is used for large trains or high-pressure roughing cages.

    The more fragile but wear-resistant cast iron is used for intermediate trains and finishing cages.

    Where possible, GS (spheroidal graphite) cast iron is used in roughing machines because it is more...

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