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Help CenterCarbon Steel Coil Q235b Q345b A36 SS400 Width 600-2000mm Thickness 1.5-16mm Hot Rolled Pickled Oiled
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Welcome to Hemaokang Steel (Shandong) Co., Ltd., a rapidly growing steel supplier located in Liaocheng, Shandong, China. Our company is dedicated to providing high-performance carbon steel coils that meet the diverse needs of global buyers. The Carbon Steel Coil Q235B Q345B A36 SS400 is one of our most competitive products, offering a wide width range of 600–2000mm and thickness from 1.5mm to 16mm, all hot rolled, pickled, and oiled to deliver a clean, corrosion-resistant surface ready for immediate fabrication. Whether you are in automotive manufacturing, structural engineering, or general metal processing, this coil delivers consistent mechanical properties and excellent workability.
Product Overview
Our hot rolled pickled and oiled (HRPO) steel coil is produced from premium carbon steel slabs and processed through controlled hot rolling, followed by pickling in hydrochloric acid to remove mill scale, and then oiled to protect the surface from oxidation. The result is a smooth, scale-free surface with improved flatness and thickness tolerance, making it ideal for stamping, bending, and cold forming applications. The coil is available in multiple grades including Q235B, Q345B, A36, and SS400, covering a broad spectrum of tensile strength and yield strength requirements.
Key Specifications
| Parameter | Value |
|---|---|
| Grade | Q235B, Q345B, A36, SS400 |
| Thickness | 1.5 – 16 mm |
| Width | 600 – 2000 mm |
| Coil Inner Diameter | 508 mm / 610 mm (optional) |
| Coil Weight | 3 – 10 tons per coil (customizable) |
| Surface Treatment | Pickled and Oiled |
| Tolerance | Thickness tolerance: ±0.05mm (upon request); Width tolerance: ±0.5mm |
Features & Advantages
- Excellent Surface Quality: Pickling removes the oxide scale, leaving a clean, uniform surface that eliminates the need for separate surface preparation before painting or coating.
- Consistent Mechanical Properties: The hot rolling process ensures homogenous grain structure, providing stable tensile strength and yield strength for reliable forming and welding.
- Versatile Width and Thickness Range: With widths from 600 to 2000mm and thickness from 1.5 to 16mm, this coil can be used for a wide range of downstream processing such as slitting, shearing, and stamping.
- Oil Protection: A thin layer of rust-preventive oil covers the steel surface, protecting the coil during transportation and short-term storage.
- Easy Formability: The combination of low hardness and good ductility allows for tight bending, deep drawing, and roll forming without cracking.
- Cost-Effective Production: By using HRPO coil, manufacturers skip the pickling process themselves, reducing production time and chemical waste.
- Certified Quality Management: Our production process is carried out under an ISO9001 certified quality system, ensuring traceability and consistency from raw material to final delivery.
Applications
This carbon steel coil is widely used in the following industries:
- Automotive parts: floor pans, brackets, wheel rims, and structural components
- Construction: purlins, roofing panels, steel structures, and scaffolding
- Pipe making: welded pipe, spiral pipe, and square/rectangular tubing
- Machinery: chassis, frames, covers, and machine housings
- Furniture: office furniture, shelving, and tubular frames
- General metal fabrication: enclosures, cabinets, and sheet metal parts
Quality Assurance & Company Strength
Hemaokang Steel (Shandong) Co., Ltd. was established in 2025 and has quickly built an annual export value of US$50 million to US$100 million. We operate with a team of 51–100 experienced employees, ensuring professional handling of every order. Our products are exported to major markets around the world, including North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, Western Europe, and many other regions. Our facility in Liaocheng, Shandong, benefits from convenient access to Qingdao port, guaranteeing efficient and reliable shipping. We are proud to be an ISO9001 certified company, reflecting our commitment to rigorous quality control from sourcing to final inspection.
Why Choose Us
- Reliable supply capacity: We can fulfill large-volume orders with consistent quality.
- Flexible customization: Width, thickness, coil weight, and inner diameter can be tailored to your specific requirements.
- Competitive pricing: We leverage our strong raw material sourcing network to offer favorable prices without compromising quality.
- Professional service: Our export team provides timely communication, accurate documentation, and dedicated after-sales support.
- On-time delivery: With strategic warehouse locations and close proximity to Qingdao port, we ensure fast and safe loading.
Frequently Asked Questions (FAQ)
Q1: What is the difference between Q235B and Q345B steel coils?
A1: Q235B is a lower yield strength carbon steel (yield strength ≈ 235 MPa) suitable for general structural use. Q345B has a higher yield strength (≥345 MPa) and better toughness, making it ideal for more demanding structural applications such as bridges and heavy machinery.
Q2: Can you provide slitting or cut-to-length services for this coil?
A2: Yes, we offer both slitting and cut-to-length services. We can process the coil into narrow strips, plates, or sheets according to your exact dimensions. Please contact us with your requirements.
Q3: What is the maximum coil weight you can supply?
A3: Our standard coil weight ranges from 3 to 10 tons. For special projects, heavier coils may be available upon request. We recommend confirming the specific weight with our sales team to optimize your handling and processing efficiency.
Q4: How do you ensure the surface quality of the pickled and oiled coil?
A4: After pickling, the coil surface is inspected for scale removal and surface defects. The oil film is applied uniformly to prevent rust. We also provide optional packaging with anti-moisture paper and steel pallets to protect the coil during sea transportation.
Q5: What are the payment terms?
A5: We accept various payment terms such as T/T, L/C, and other negotiated methods. For regular customers, flexible terms can be discussed. Please contact us to find a suitable arrangement.
Q6: Do you provide third-party inspection services?
A6: Third-party inspection is available upon request. We cooperate with reputable inspection agencies such as SGS, BV, and others to verify dimensions, mechanical properties, and surface quality before shipment.
Q7: How long is the lead time for production and delivery?
A7: For standard sizes and grades, the lead time is generally 15–25 days after receiving the deposit or confirmed order. Larger or customized orders may require a longer schedule. We will provide an accurate lead time upon order confirmation.
Q8: Can you provide mill test certificates for each batch?
A8: Yes, a mill test certificate (MTC) is supplied with each shipment, providing full traceability of heat number, chemical composition, and mechanical properties. Additional documents can also be provided as needed.
With our solid production capabilities, comprehensive export experience, and customer-oriented approach, Hemaokang Steel is your reliable partner for carbon steel coils. Contact us today for a competitive quotation and let us support your project with high-quality material and professional service. We look forward to establishing a long-term business relationship with you.
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