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ASTM A36 Black Carbon Steel Plate from China Suppliers and Factory - High Strength and Versatile Applications

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Steel plates are essential flat-rolled steel products known for their significant thickness, distinguishing them from traditional steel sheets. In the industry, a steel plate is classified as a product with a thickness exceeding 4.5 mm, while those over 100 mm are categorized as thick steel plates. These high-quality steel plates are produced through advanced hot rolling processes, beginning with slabs created via continuous casting. After rolling and cooling, they are cut to precise dimensions, making them ideal for various applications. Thanks to their remarkable strength, excellent toughness, and superior weldability, steel plates are extensively utilized in sectors such as shipbuilding, construction, bridge fabrication, machinery manufacturing, and pressure vessels. As a leading steel plate manufacturer in China, our factory ensures top-quality products, making us a preferred choice among global suppliers.

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    Specifications

    Parameter Range / Options
    Thickness 4.5 mm – 25 mm
    Width 500 mm – 5300 mm
    Length 3000 mm – 27000 mm

    Material Standards & Grades

    Standard Common Grades
    ASTM A36, A283 Grade A/B/C/D, A285, A299, A516 Grade 60/65/70, A529 Grade 50/55, A572 Grade 50/55/60/65, A573 Grade 65/70
    EN 10025-2 S235JR/J0/J2, S275JR/J0/J2, S355JR/J0/J2
    JIS G3101 (SS330, SS400, SS490), G3106 (SM400A/B/C, SM490A/B/C), G4051 (S10C–S55C)
    GB/T Q235A/B/C/D, Q275, Q295, Q345A/B/C/D/E, Q390, Q420, Q460, Q500, Q550, Q620, Q800
    DIN ST37-2, ST37-3, ST52-3
    AS/NZS 250 Grade, 350 Grade (AS/NZS 3678)

    Surface Finishes & Coatings

    • 🔲 Natural / Black As-rolled with mill scale, often requiring secondary cleaning before any further industrial processing operations.
    • 🛡️ Coated / Galvanized Zinc coating for corrosion resistance, providing a highly durable barrier against harsh environmental weather conditions effectively.
    • 🎨 Primed / Painted Shop-applied primer or paint coating, intended to protect structural components from oxidation during storage and transportation.
    • ⚙️ Shot Blasted / Pickled Cleaned surface for further treatment, ensuring that all loose contaminants are removed for superior bonding performance.
    • 💨 Sand Blasting Surface preparation for painting or inspection, creating a uniform texture which maximizes adhesion for heavy duty coatings.

    Packaging & Delivery

    Packaging Standard export seaworthy packing or as required
    Protection Oiled, coated, or wrapped for corrosion protection during transit
    Identification Tags indicating grade, heat number, dimensions, and quantity
    Delivery Time 20–50 days (7 days for stock items)
    Loading Port Tianjin
    MOQ 1 piece

    Frequently Asked Questions

    Q What thickness range is available for the steel plates?
    The steel plates are available in thicknesses ranging from 4.5 mm to 25 mm, covering a wide range of structural and industrial applications.
    Q Which international material standards do you support?
    We support multiple international standards including ASTM, EN 10025-2, JIS, GB/T, DIN, and AS/NZS, with a comprehensive range of grades under each standard to meet diverse project requirements.
    Q What surface finish options are available?
    We offer five main surface finish options: Natural/Black (as-rolled), Coated/Galvanized, Primed/Painted, Shot Blasted/Pickled, and Sand Blasting. Each finish is suited to different downstream processing and environmental requirements.
    Q What is the minimum order quantity (MOQ)?
    Our minimum order quantity is just 1 piece, making it convenient for both small-scale projects and large bulk procurement needs.
    Q How long does delivery take, and what is the loading port?
    Standard delivery time is 20–50 days. For items available in stock, delivery can be completed within 7 days. All shipments are loaded from Tianjin Port.
    Q How are the steel plates packaged and protected during shipping?
    Products are packed in standard export seaworthy packaging or customized as required. Each plate is oiled, coated, or wrapped for corrosion protection during transit, and clearly tagged with grade, heat number, dimensions, and quantity for easy identification.