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Help CenterSS400 Hot-Rolled Steel Coil for General Welding, 1.8-9.0mm Thk, Mill Edge
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Hemaokang Steel (Shandong) Co., Ltd. proudly presents our premium SS400 Hot-Rolled Steel Coil for General Welding. With a thickness range of 1.8 to 9.0 mm and mill edge finish, this coil is engineered to meet the rigorous demands of structural fabrication, general welding, and industrial applications. As a company established in 2025 with an annual export value of US$50–100 million, we combine fresh manufacturing capabilities with extensive global supply chain experience. Our ISO9001-certified production ensures consistent quality, precise dimensions, and excellent weldability, making this coil a reliable choice for manufacturers worldwide.
Our SS400 hot-rolled steel coil is produced from high-quality billets and processed under strict temperature control to achieve optimal mechanical properties. The mill edge provides a clean, straight edge suitable for further processing like slitting or cutting. Whether you need coils for shipbuilding, bridges, construction, or general metalworking, this product delivers the strength and formability required for efficient welding and fabrication.
Key Features & Technical Specifications
- Material Grade: SS400 per JIS G3101 – excellent weldability and ductility.
- Thickness Range: 1.8 mm – 9.0 mm (tolerance: ±0.15 mm for thin gauges, ±0.25 mm for thicker).
- Width Options: Standard widths from 600 mm to 2000 mm, customizable per order.
- Edge Condition: Mill edge (as-rolled), ready for shearing or slitting.
- Surface Finish: Hot rolled with black oxide; pickled and oiled finish available upon request.
- Coil Weight: Typically 3–10 tons per coil, customizable to your handling capacity.
- Mechanical Properties: Yield strength ≥ 245 MPa (for thickness ≤16 mm), tensile strength 400–510 MPa.
| Parameter | Specification |
|---|---|
| Standard | JIS G3101 SS400 |
| Thickness (mm) | 1.8, 2.0, 2.5, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0 |
| Width (mm) | 600, 900, 1000, 1200, 1500, 1800, 2000 (custom) |
| Edge Type | Mill Edge |
| Surface | Hot Rolled (Pickled & Oiled optional) |
| Coil Inner Diameter | 508 mm or 610 mm |
| Certification | ISO9001:2015, Mill Test Certificate |
Advantages & Customer Benefits
- Consistent Weldability: Low carbon content and controlled chemistry ensure smooth welding without preheat for most applications.
- Cost-Effective: Hot-rolled process reduces production cost, offering competitive pricing without compromising quality.
- Versatile Applications: Suitable for general structural components, automobile frames, storage tanks, pipelines, and more.
- Customizable Dimensions: We can slit coils to your required width or cut to length, reducing secondary processing waste.
- Reliable Supply: With 51-100 experienced employees and a robust export logistics network, we ensure on-time delivery to all major markets including North America, South America, Europe, Asia, and Africa.
At Hemaokang Steel, we back every coil with our commitment to quality and service. Our ISO9001-certified management system covers every step from raw material procurement to final inspection. We have shipped over 10,000 tons of steel coils to satisfied clients across 30+ countries. Our annual export value exceeding US$50 million demonstrates our reliable capacity and global reach. Choose Hemaokang for your next project – contact us today for a quote or technical support.
Frequently Asked Questions (FAQ)
- What does SS400 stand for? SS400 is a Japanese standard (JIS G3101) structural steel with a minimum tensile strength of 400 MPa. It is widely used for general welding and structural purposes.
- What is the thickness tolerance for this coil? For thickness 1.8–3.0 mm, tolerance is ±0.15 mm; for 3.0–6.0 mm, ±0.20 mm; for 6.0–9.0 mm, ±0.25 mm. Tighter tolerances are available upon request.
- Can this steel coil be used for welding without special preparation? Yes, SS400 has excellent weldability. No preheating is required for most common welding methods (MIG, TIG, arc). For very thick sections, consult your welding engineer.
- What is the typical packaging for export? Coils are packed in steel frames or wooden crates, with anti-rust paper, plastic wrapping, and steel strapping. Seaworthy packaging is standard for all shipments.
- What is the minimum order quantity (MOQ)? Our standard MOQ is 25 tons per size. For smaller quantities, please contact our sales team to discuss options.
- Do you provide mill test certificates? Yes, every coil comes with a Mill Test Certificate (MTC) that shows chemical composition and mechanical properties as per JIS G3101.
- Can I get a sample before placing a bulk order? Absolutely. We can provide free samples (shipping cost applies) for quality evaluation. Sample size typically 100mm x 200mm.
- How long is the lead time for a standard order? For standard sizes, lead time is 7–15 days after receipt of deposit. For custom widths or special treatments, it may extend to 20–25 days.
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