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China Cold-Rolled Steel Coil Suppliers - Double Bright Finish Factory with Mirror Polish and EN 10130 Compliance
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China Cold-Rolled Steel Coil Suppliers - Double Bright Finish Factory with Mirror Polish and EN 10130 Compliance

Our double bright coils are crafted in China, where they undergo an advanced two-stage polishing process. Initially, we employ 600-grit abrasives for precise grinding, followed by electrochemical buffering to achieve a stunning mirror finish (Ra ≤ 0.3 µm, DOI ≥ 95). These products meet the rigorous EN 10130 DC04-DC06 specifications, ensuring quality that sets us apart among suppliers. Our innovative approach eliminates peak-to-valley heights greater than 0.1 µm, making our coils ideal for luxury reflective surfaces. Trust our factory for superior quality and performance in every coil.

    Comparison Table

    EN BAOGANG
    DC01 DC01
    /BLC
    DC03 DC03
    /BLD
    DC04 DC04
    /BUSD
    DC05 DC05
    /BUFD
    DC06 DC06
    /BSUFD
    DC07 DC07
    HC260LA HC260LA
    HC300LA HC300LA
    HC340LA HC340LA
    HC380LA HC380LA
    HC420LA HC420LA
    HC460LA HC460LA
    HC500LA HC500LA
    HC180Y HC180Y
    HC220Y HC220Y
    B170P1
    HC260Y HC260Y
    HC180B HC180B
    B180H1
    B180H2
    HC220B HC220B
    HC260B HC260B
    HCT 590X HC340/590DP
    HCT 780X HC420/780DP
    HCT 980X HC550/980DP
    - HC820/1180DP

    Applications

    💡

    Decorative architectural facades, premium kitchenware, and optical instrument housings.

    Key Advantages

    Surface Perfection

    Surface Perfection

    Laser confocal microscopy detects sub-micron defects (scratch/pit-free).

    Coating Readiness

    Coating Readiness

    Surface energy ≥38 mN/m ensures flawless PVD/PECVD deposition.

    Temper Options

    Temper Options

    Full-hard to skin-passed tempers for balancing strength and bendability.

    Frequently Asked Questions

    What is the equivalent BAOGANG grade for EN DC01?
    The equivalent BAOGANG grade for EN DC01 is DC01/BLC. Both grades offer excellent cold-forming and drawing performance.
    What are the primary applications of these cold-rolled steel coils?
    They are widely utilized in high-end applications including decorative architectural facades, premium kitchenware, and optical instrument housings.
    How is the surface quality of the steel coils controlled?
    We use advanced laser confocal microscopy to inspect and detect sub-micron defects, ensuring the surface is completely scratch-free and pit-free.
    Why is the surface energy level of ≥38 mN/m important?
    A surface energy level of ≥38 mN/m ensures optimal coating readiness, allowing for flawless and highly durable PVD or PECVD deposition.
    What temper options are available for these steel coils?
    We offer a wide selection of temper options ranging from full-hard to skin-passed tempers to help you achieve the perfect balance between material strength and bendability.
    Are there high-strength dual-phase (DP) steel equivalents available?
    Yes, high-strength grades such as EN HCT 590X, HCT 780X, and HCT 980X are directly mapped to BAOGANG's HC340/590DP, HC420/780DP, and HC550/980DP respectively.