High-Quality Carbon Steel Round Bar: The Backbone of Industrial Fasteners
At Handan Bolt, we understand that the quality of a threaded rod or bolt is entirely dependent on the quality of the raw material. Our Carbon Steel Round Bar is specifically manufactured and processed for the production of high-strength fasteners, including threaded rods (DIN 975 / DIN 976), anchor bolts, and heavy-duty screws. Located in Yongnian, the “Capital of Fasteners” in China, we provide factory-direct sourcing for global buyers looking for reliability, consistency, and competitive pricing.
Technical Specifications and Grades
Our round bars are available in a wide range of diameters and grades to meet international standards such as DIN, ISO, ASTM, and SAE. We rigorously control the chemical composition to ensure excellent tensile strength and yield strength.
- Material: Carbon Steel (Q195, Q235, 35K, 45#, 40Cr, B7) and Stainless Steel (304, 316).
- Grades Available:
- Class 4.8: Low carbon steel, ideal for general construction applications where high tensile strength is not critical.
- Class 8.8: Medium carbon steel (quenched and tempered), providing high tensile strength for structural engineering.
- Class 10.9 / 12.9: Alloy steel for critical heavy-duty applications requiring superior strength and durability.
- Diameter Range: 6mm to 100mm (Custom sizes available upon request).
- Length: Standard 6m, 12m, or cut-to-length service available.
Surface Treatment and Finish
While the round bar is the raw material, we can also provide processed bars with various surface treatments to enhance corrosion resistance before threading:
- Plain / Black Oxide: Standard finish for further processing.
- Zinc Plated (Galvanized): Blue-white or Yellow zinc for moderate corrosion resistance.
- Hot Dip Galvanized (HDG): For maximum durability in outdoor and marine environments.
Why Choose Handan Bolt’s Round Bars?
As a leading manufacturer, we control the entire supply chain. Unlike trading companies, we verify the steel quality at the source.
- Consistent Chemical Composition: We ensure that the Carbon Steel (View on Wikipedia) used in our bars meets precise industry standards, ensuring no snapping or failure during the threading process.
- Perfect Straightness: Our bars undergo rigorous straightening processes, which is crucial for high-speed threading machines to operate smoothly without damaging the dies.
- Competitive Export Pricing: By manufacturing in the fastener hub of China, we offer prices that allow distributors and factories worldwide to maximize their profit margins.
Applications in the Fastener Industry
Our steel round bars are the primary raw material for:
- Full Threaded Rods (All-thread rods)
- Double End Studs
- Foundation Anchor Bolts
- U-Bolts and Eye Bolts
- Special Automotive Fasteners
Quality Control and Testing
Quality is our priority. Every batch of round bars undergoes testing for hardness, tensile strength, and chemical analysis before it leaves our warehouse. We can provide Mill Test Certificates (MTC) upon request to ensure you are getting exactly what you paid for.
Request a Quote Today
Are you looking for a reliable supplier for fastener raw materials? Whether you need a full container of Class 4.8 bars for general use or specialized Class 10.9 alloy steel for structural projects, Handan Bolt is your trusted partner.
Ready to place an order or need a custom size?
Please click here to Contact Our Sales Team for a Free Quote. We reply to all inquiries within 24 hours.
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