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High-Quality Flat Steel from China Suppliers and Factory - Durable, Cost-Effective, and Versatile Solutions

Features & Advantages

Features

- Rectangular cross-section available in long strips with either straight or rounded edges.

- Surfaces offered in hot-rolled with an oxide layer or cold-rolled for a smooth finish.

Advantages

- High tensile strength, making it easy to cut, weld, and drill, perfect for a variety of applications.

- A cost-effective solution ideal for mass production needs.

- Offers corrosion resistance in stainless steel options or heat resistance in alloy steel variants.

As a leading manufacturer in China, our factory provides high-quality products that meet the demands of industries worldwide. We assure you will find reliable suppliers for your business needs.

    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 & Advantage
    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 and slightly less precise dimensions. Cold-rolled flat steel is processed at room temperature, offering a smoother surface finish and tighter dimensional tolerances, making it ideal for applications requiring high precision.
    Q What standards does your flat steel comply with?
    Our flat steel products comply with major international and Chinese national standards, including GB/T 704, GB/T 6723, ASTM A36, and ASTM A240, ensuring compatibility with global project requirements.
    Q Can flat steel be customized in length and dimensions?
    Yes. While the standard length is 6 meters, we offer fully customizable dimensions in thickness (1–60 mm), width (10–300 mm), and length to meet specific project or engineering requirements.
    Q Which flat steel material is best for corrosion-resistant applications?
    Stainless steel flat bars (grades 304 and 316) are the best choice for corrosion-resistant applications. Grade 316 offers superior resistance to chlorides and is commonly used in chemical processing, marine environments, and food-grade equipment.
    Q What industries commonly use flat steel bars?
    Flat steel bars are widely used across multiple industries, including construction (beams and brackets), machinery manufacturing (shafts and linkages), automotive (chassis and body parts), shipbuilding, bridge structures, hardware tools, and furniture frame fabrication.
    Q How do I choose the right flat steel material for my project?
    Material selection should be based on your application requirements. Consider carbon content for strength, elongation for formability, and surface quality for finish-critical uses. Common choices include Q235 or ASTM A36 for general structural use, 45 Steel for mechanical parts, and 40Cr or 42CrMo alloy steel for high-wear or high-temperature environments. Our technical team can assist with tailored recommendations.

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