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China Flat Steel Suppliers - High Strength, Cost-Effective Flat Steel from Reliable Factory

Discover Premium Steel Products from China

Product Features

- Our steel features a rectangular cross-section, available in long strips with either straight or rounded edges.

- Choose between hot-rolled steel with an oxide layer or cold-rolled steel for a smooth finish.

Key Advantages

- Engineered for high strength, our materials are easy to cut, weld, and drill, making them ideal for various applications.

- As leading suppliers from China, we offer cost-effective solutions suitable for mass production.

- Our products provide excellent corrosion resistance (stainless steel) and heat resistance (alloy steel), ensuring durability and longevity.

    Parameters & Standards
    Thickness 1.5–60 mm (hot-rolled); 1–16 mm (cold-rolled)
    Width 10–300 mm (hot-rolled); 10–300 mm (cold-rolled)
    Length Standard 6m, customizable
    GB/T 704 GB/T 6723 ASTM A36 ASTM A240
    Types of Flat Steel
    Hot-rolled Flat Steel

    Formed through high-temperature rolling process, the surface is relatively rough.

    Cold-rolled Flat Steel

    Rolling at room temperature, smooth surface, high dimensional accuracy.

    Stainless Steel Flat Bar

    Strong corrosion resistance, suitable for the food or chemical industry.

    Carbon Steel Flat Bar

    High strength and low cost, widely used in structural components.

    Alloy Steel Flat Bar

    Contains elements such as chromium and nickel to enhance wear resistance or high temperature resistance.

    Features & Advantages
    ★ Features
    • Rectangular cross-section, long strip with straight or rounded edges.
    • Surface may be hot-rolled (oxide layer) or cold-rolled (smooth).
    ★ Advantages
    • High strength, easy to cut, weld, and drill.
    • Cost-effective for mass production.
    • Corrosion-resistant (stainless steel) or heat-resistant (alloy steel).
    Materials
    🔸 Common Carbon Steel

    Q235 (GB), ASTM A36 (International)

    🔸 Medium Carbon Steel

    45 Steel, used for mechanical parts

    🔸 Stainless Steel

    304, 316 (AISI), corrosion-resistant

    🔸 Alloy Steel

    40Cr, 42CrMo (with Cr, Mo)

    Applications
    🏗 Construction (beams, brackets)
    Machinery (shafts, linkages)
    🚘 Automotive (chassis, body parts)
    Shipbuilding & bridge structures
    🔧 Hardware tools & furniture frames

    Process Advantages and Material Selection Guidelines

    Advanced high-speed rolling and controlled cooling technologies ensure dimensional precision (±0.1 mm) and microstructural homogeneity, supporting downstream processes like drawing and heat treatment. Material selection must comply with industry standards (ASTM, GB/T, JIS), prioritizing carbon content, elongation, and surface defect control.

    As a global wire rod supplier, we deliver full-range solutions for steel strands, cold-headed standard parts, and special alloy wire materials, empowering clients to reduce costs and enhance efficiency. Contact us now for customized product catalogs and technical support!

    Frequently Asked Questions
    Q What is the difference between hot-rolled and cold-rolled flat steel?
    Hot-rolled flat steel is produced at high temperatures, resulting in a rougher surface with an oxide layer, and is typically used for structural applications. Cold-rolled flat steel is processed at room temperature, offering a smoother surface, tighter dimensional tolerances, and higher strength — ideal for precision components.
    Q What thickness and width ranges are available for flat steel?
    Hot-rolled flat steel is available in thicknesses from 1.5 mm to 60 mm and widths from 10 mm to 300 mm. Cold-rolled flat steel ranges from 1 mm to 16 mm in thickness, with widths of 10 mm to 300 mm. Custom lengths beyond the standard 6 m are also available upon request.
    Q Which material grade should I choose for corrosion-resistant applications?
    For corrosion-resistant applications, stainless steel flat bars in grades 304 or 316 (AISI) are recommended. Grade 316 offers superior resistance to chlorides and is preferred in marine, chemical, and food processing environments. For general corrosion resistance, 304 is a cost-effective choice.
    Q What international standards does your flat steel comply with?
    Our flat steel products comply with multiple international standards, including GB/T 704 and GB/T 6723 (Chinese national standards), as well as ASTM A36 and ASTM A240 (American standards). We can also supply products meeting JIS and EN standards upon request to suit global project requirements.
    Q Can flat steel be customized in length and specification?
    Yes. While the standard length is 6 meters, we offer customizable lengths to meet specific project requirements. Custom widths, thicknesses, and material grades are also available. Please contact our team with your technical drawings or specifications for a tailored quotation.
    Q What industries commonly use flat steel bars?
    Flat steel bars are widely used across multiple industries including construction (beams, brackets, and frames), machinery manufacturing (shafts and linkages), automotive (chassis and body parts), shipbuilding, bridge engineering, as well as hardware tools and furniture frame fabrication.

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