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Help CenterMild Carbon Steel Strip Coil Q235 SS400 ASTM A36 Thickness 2-8mm Edge Trimmed Slit For Forming Bending
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Welcome to Hemaokang Steel (Shandong) Co., Ltd., a professional supplier of high-quality mild carbon steel strip coils. Our Q235/SS400/ASTM A36 edge-trimmed slit coils are engineered for efficient forming and bending processes. With thicknesses from 2 to 8 mm and customized widths, these coils provide reliable performance for manufacturing industries around the world. As a dedicated export-oriented company, we combine modern production management, strict quality inspection and competitive pricing to support your projects.
Our mild carbon steel strip coil is produced from selected hot-rolled raw materials and processed through precision slitting lines. The edge-trimmed slit surface ensures smooth edges without excessive burrs, which reduces tool wear during bending and forming operations. The material has good weldability and ductility, making it suitable for cold bending, stamping, roll forming, and general steel fabrication.
Key Features
- Reliable Material Grades: Available in widely accepted grades Q235, SS400 and ASTM A36, covering multiple international specification requirements.
- Precision Trimmed Edges: All strip coils are edge trimmed and slit to consistent width, helping to maintain accurate part layout.
- Thickness Range: 2-8 mm thickness, ideal for medium-thickness forming, bending and structural applications.
- Customizable Width: We can slit the coil into various widths according to your drawings or order details.
- Surface Options: Available in mill finish, pickled and oiled, or other treatment on request.
- Easy Processing: Low carbon property ensures good plastic deformation and reduced cracking risk during bending.
- Cost-effective Solution: Bundle ordering and optimized production reduce unit cost without sacrificing quality.
Technical Parameters
| Material | Mild carbon steel (low carbon) |
| Available Grades | Q235 (GB/T700), SS400 (JIS G3101), ASTM A36 |
| Thickness | 2 mm - 8 mm |
| Width | Customized (commonly within 20-800 mm, subject to slitting capability) |
| Edge Condition | Trimmed / slit edges with controlled burr |
| Delivery Form | Strip coil, as rolled or optional thermal treatment |
| Surface Finish | Black sheet, pickled, pickled & oiled (optional) |
| Inspection | Mill test certificate and quality report available |
| Export Packing | Waterproof paper, steel packing straps and edge protection |
| Shipment | Qingdao Port, China |
The Q235 grade is a classic carbon structural steel specified in the Chinese standard GB/T700. It offers balanced mechanical properties and is widely used in construction, bridges, vehicle parts and general processing. SS400, according to JIS G3101, is a popular Japanese standard grade with similar performance, commonly specified in Asian markets. ASTM A36 is a standard specification recognized globally for structural steel, ensuring consistent quality for critical load-bearing components. By supplying all three grades, we help you simplify the procurement process and choose the most suitable material for your local standards.
Forming and bending are the primary applications of our mild carbon steel strip coil. The combination of controlled carbon content and refined microstructure provides good die-forming capabilities. Parts such as brackets, channels, frame members, pipes, and profiles can be produced with high dimensional accuracy. Because the strip is slit and edge-trimmed, the initial strip width is accurate, reducing the need for secondary processing and waste.
We understand that every customer has unique requirements. Our production team can adjust coil outer diameter, inner diameter, coil weight, and width tolerances within certain ranges to match your handling equipment and downstream production. For applications that require a cleaner surface, we recommend pickled or pickled-and-oiled strip, which helps to extend tool life and improve final product appearance. If you need anti-corrosion coating or other edge protection, please discuss with our sales team.
Quality assurance is at the core of our operation. We implement a comprehensive inspection flow from incoming raw coils, slitting process control, to final visual and dimensional checks. Our ISO9001 quality management system provides a solid foundation for continuous improvement and traceable records. Every shipment can be accompanied by a signed mill test certificate and relevant test documents. This reduces your material inspection workload and ensures full compliance with your manufacturing standards.
As an export-driven supplier, Hemaokang Steel has achieved an annual export value of US$50-100 million. Our dedicated team of 51-100 employees manages production, quality control, and logistics with careful coordination. We have built cooperative relationships with clients across North America, South America, Europe, Southeast Asia, Africa, and Oceania. From our base in Liaocheng, Shandong, we enjoy convenient transportation to Qingdao port, enabling efficient and stable delivery.
We continually invest in slitting and trimming technology to ensure narrow width precision and good edge condition. Our facilities are capable of handling strip thickness up to 8 mm while maintaining a clean cut. For medium-gauge steel strip coils that need to be formed or bent, our product can help you reduce raw material preparation time and achieve faster production cycles.
Frequently Asked Questions
- Q: What is the typical delivery time for strip coil orders?
- A: The delivery time depends on the order quantity and slitting requirements. For common specifications, delivery can be arranged within 15-30 days after receiving deposit. We will provide an exact schedule when confirming your order.
- Q: Can you supply a small quantity for testing?
- A: Yes, we accept trial orders. A small sample quantity can be arranged to verify quality, dimensions and surface condition before full production. Please contact us to discuss the specific quantity.
- Q: What widths can you slit?
- A: The slit width is highly customizable. Our slitting line can produce strips from tens of millimeters to several hundred millimeters within the 2-8mm thickness range. The precise limit depends on the order volume and equipment setup.
- Q: How do you ensure the edge quality and straightness?
- A: We use precision slitters with adjustable side trim blades, and every coil is inspected for edge burr and width tolerance. Adequate tension is applied to keep strip straight, and the edge trimming removes any irregular edges from hot-rolled coils.
- Q: Are these steel coils suitable for cold bending without cracking?
- A: Yes. Mild carbon steel with low carbon content offers good ductility and bendability. For most standard forming and bending operations, the risk of cracking is low. For tight bend radii or complex shapes, we recommend testing with your actual tooling.
- Q: Can you provide pickled and oiled strip coils?
- A: Yes, pickling removes the scale layer on the surface and oiling provides temporary rust protection. Pickled and oiled surface is often preferred for further forming and welding operations. Please specify this requirement when ordering.
- Q: What type of packaging do you use for sea transportation?
- A: Each coil is protected with moisture-proof paper, its ends may be coated with protective wax, and the entire coil is strapped with steel bands. Lifting lugs or wooden pallets can be used as required. This ensures safe handling during overseas shipping.
- Q: Do you provide material certificates?
- A: Yes, a mill test certificate is available for each batch, and we can also provide third-party inspection reports when necessary. Our quality documentation supports traceability from the original steel source to final delivery.
Partner with Hemaokang Steel for dependable supply of mild carbon steel strip coils. Our combination of international export experience, ISO9001 certified quality management, and flexible production ensures your project moves smoothly from order to delivery. We welcome your specific inquiries for the Q235, SS400, and ASTM A36 strip coils. Contact us now for a competitive quotation and let our team help you find the right steel solution.
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