Chromed Steel Bar

Chemical Composition: The specific chemical composition of the chrome coated bar can be obtained from the mill test certificate. This certificate provides detailed information about the composition of the material, including the percentages of various elements present.
Supply Condition: The chrome coated bar is supplied in a chrome-plated condition. This means that the bar has been treated with a layer of chrome to enhance its corrosion resistance and durability.
Chrome Thickness: The chrome layer thickness on the bar ranges from 20 to 50 microns. This thickness provides optimal protection against corrosion and wear.
Surface Roughness: The surface roughness of the bar is within the range of 0.2 to 0.4 microns (Ra). This ensures a smooth and high-quality surface finish, contributing to the bar's performance.
Outside Diameter Tolerances: The bar conforms to the ISO f7 tolerance standard for the outside diameter. ISO f7 ensures precise dimensions and compatibility with other components.
Ovality: The ovality of the bar is half of the ISO f7 tolerance. This means that the bar's shape deviation from a perfect circle is within half of the specified tolerance range.
Straightness: The maximum deviation from straightness for the bar is ≤0.2mm per meter. This ensures proper alignment and smooth operation in various applications.
Corrosion Resistance: The bar undergoes a corrosion resistance test in natural salt spray according to ASTM B 117, lasting for 72 hours. The results are evaluated according to ISO 4540, with a rating between 7 to 10. This test ensures the bar's ability to withstand corrosive environments.
Packing: The bar is protected by anti-rust oil spread on its surface. Additionally, each rod is individually packed in a paper roll and then placed in wooden cases for secure transportation and storage.
Certificate: All relevant certificates related to the material, heat treatment, and plating processes are provided. These certificates ensure the bar meets the required standards and specifications.

Chemical Composition