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Help CenterHot-Rolled Coil for Automotive Frame Manufacturing, 3.0-6.0mm Thk, Dimensional Stability
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Welcome to Hemaokang Steel (Shandong) Co., Ltd. – your trusted partner in high-quality steel solutions. Our Hot-Rolled Coil for Automotive Frame Manufacturing (3.0-6.0mm thickness) is engineered to deliver exceptional dimensional stability, ensuring consistent performance in demanding automotive frame production. With our ISO9001-certified processes and a global export network spanning over 15 regions, we provide steel coils that meet the rigorous standards of the automotive industry. Whether you require precise gauge control, flatness, or surface quality, our product is designed to optimize your manufacturing efficiency and reduce material waste.
Product Features & Technical Specifications
- Thickness Range: 3.0 mm to 6.0 mm, with tight tolerance (±0.1 mm) to ensure uniform strength across the coil.
- Width Options: Standard widths from 900 mm to 1500 mm; custom widths available upon request.
- Material Grade: Commonly supplied in Q235B, Q345B, SS400, or S235JR, with full traceability to mill test certificates.
- Dimensional Stability: Advanced rolling and cooling processes minimize residual stress, achieving excellent flatness and shape consistency – critical for automotive frame forming.
- Surface Quality: Pickled and oiled surface treatment is optional, providing a clean, rust-resistant finish for immediate processing.
- Mechanical Properties: Yield strength ≥ 235 MPa, tensile strength 370–500 MPa, elongation ≥ 24% (depending on grade).
- Coil Weight: 3–10 tons per coil, optimized for efficient handling and production line feeding.
- Packaging: Standard export packaging with steel inner/outer rings, waterproof paper, and steel strapping to prevent damage during transit.
Technical Parameters (Typical Values)
| Parameter | Value |
|---|---|
| Thickness Tolerance | ±0.1 mm |
| Flatness (per 1000 mm) | ≤ 5 mm (Ishibashi) |
| Yield Strength (typical) | ≥ 235 MPa (Q235B) |
| Tensile Strength | 370–500 MPa |
| Elongation | ≥ 24% |
| Surface Roughness (Ra) | ≤ 2.5 μm (pickled & oiled) |
Advantages for Automotive Frame Manufacturing
- Consistent Gauge: Our hot-rolled coils provide uniform thickness across the entire coil length, reducing the need for re-adjustment in stamping or bending operations.
- Excellent Formability: The material's controlled chemistry and microstructure enable deep drawing and complex bending without cracking.
- Weldability: Low carbon content and good phosphorus/sulfur control ensure strong, reliable welds – essential for frame assembly.
- Cost Efficiency: High yield strength allows for thinner sections without sacrificing structural integrity, saving material weight and cost.
- Customizable: We offer tailored width, surface treatment, and packaging to match your specific production line requirements.
Our hot-rolled coils are rigorously tested in-house for mechanical properties, surface defects, and dimensional accuracy. Each coil is accompanied by a mill test certificate (MTC) for full traceability. We understand that automotive frame manufacturers demand reliability and repeatability – our product delivers exactly that.
Why Choose Hemaokang Steel?
Established in 2025, Hemaokang Steel (Shandong) Co., Ltd. has quickly become a reliable supplier in the global steel market. With an annual export value of US$50 million – US$100 million and a dedicated team of 51–100 employees, we serve clients across North America, South America, Europe, Southeast Asia, Africa, and the Middle East. Our factory is ISO9001 certified, ensuring that every production step meets international quality standards. We also maintain strategic partnerships with major Chinese steel mills, guaranteeing stable supply and competitive pricing.
We are located in Liaocheng, Shandong – a major steel manufacturing hub in China – which gives us logistical advantages for fast shipping. Our export team provides professional support, from sample orders to bulk shipments. We are committed to long-term partnerships and offer flexible payment terms, including T/T and L/C. For automotive frame manufacturers seeking a reliable source of hot-rolled coils with dimensional stability, contact us today for a quotation or technical consultation.
Frequently Asked Questions (FAQ)
-
What is the typical lead time for your hot-rolled coils?
For standard sizes, lead time is 15–20 days after order confirmation. Custom sizes may require 25–30 days. -
Do you provide samples for testing?
Yes, we offer free samples (customer pays shipping) for quality evaluation. Sample size is typically 300mm x 300mm. -
Can you supply other steel grades like DP600 or HSLA?
Yes, we can supply advanced high-strength steel (AHSS) grades upon request, subject to minimum order quantities. -
What is the minimum order quantity (MOQ)?
Standard MOQ is 25 metric tons per size. For trial orders, 5–10 tons may be acceptable. -
How do you ensure dimensional stability during shipping?
Coils are securely strapped and protected with moisture-proof packaging. We also recommend using proper lifting equipment at your facility. -
Do you have a quality guarantee policy?
Absolutely. Our ISO9001 system ensures continuous quality control. If a non-conformity is found, we offer replacement or credit as per contract terms. -
What payment methods do you accept?
We accept T/T (30% deposit, 70% balance before shipment), L/C at sight, and other terms negotiable for long-term partners. -
Can you provide third-party inspection reports?
Yes, we can arrange SGS, BV, or other independent inspection at buyer's cost or included in the price for large orders.
Contact us now to discuss your specific requirements and experience the Hemaokang difference!
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