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Carbon Steel Coils Hot Rolled Q235B SS400 JIS G3101 2-4mm for Automotive Parts
Product Spotlights
Hot rolled carbon steel coils Q235B/SS400 JIS G3101, 2-4mm thickness with tight tolerances. Excellent weldability and formability for automotive structural parts. ISO9001 certified, global export capability, customizable width and surface treatment. Cost-effective solution for high-volume production.
Negotiable
MOQ: 1 Ton (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Standard:
Other, JIS G3101
Surface Treatment:
Other, Hot Rolled
Application:
Other, Automotive Parts
Payment & Shipping
Payment Methods:
Port of Shipment:
Qingdao Port
Delivery Detail:
7 days
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Standard
Other, JIS G3101
Surface Treatment
Other, Hot Rolled
Application
Other, Automotive Parts
Edge
Other, Mill Edge / Slit Edge
Material
Carbon Steel
Grade
Q235B / SS400
Thickness
2-4mm
Width
Customizable (e.g., 1250mm)
Coil Weight
Optional (up to 30 tons)
Hemaokang Steel (Shandong) Co., Ltd. is proud to offer our premium Carbon Steel Coils Hot Rolled Q235B SS400 JIS G3101 2-4mm, specifically designed for the demanding automotive parts industry. As a trusted supplier with an annual export value of US$50 million to US$100 million and ISO9001 certification, we ensure each coil meets the highest standards of dimensional accuracy, mechanical performance, and surface quality. Our hot rolled steel coils are manufactured under strict quality control, making them an ideal choice for chassis components, brackets, reinforcements, and other structural automotive parts.
The Q235B and SS400 grades, compliant with JIS G3101, provide excellent weldability, formability, and strength. With thicknesses ranging from 2mm to 4mm, these coils offer versatility for both light and medium-duty applications. Below we detail the key specifications and advantages that make our product a reliable solution for your manufacturing needs.
Key Features & Technical Specifications
- Material Grades: Q235B (Chinese standard) and SS400 (Japanese standard) – both widely accepted for general structural purposes.
- Thickness Range: 2mm – 4mm, with tight tolerances of ±0.1mm to ensure consistent stamping and forming results.
- Width Options: Available in standard widths from 1000mm to 1500mm; custom widths can be produced upon request.
- Surface Finish: Hot rolled black surface with oxide scale, suitable for further processing like pickling, oiling, or shot blasting.
- Mechanical Properties: Yield strength ≥ 235 MPa (Q235B) / ≥ 245 MPa (SS400), tensile strength 370-500 MPa, ensuring durability under load.
- Weldability & Formability: Low carbon content (≤0.20%) allows for easy welding, bending, and deep drawing – essential for complex automotive parts.
- Coil Weight: Up to 30 tons per coil, reducing downtime during continuous production lines.
- Packaging: Standard seaworthy export packing with steel straps, waterproof paper, and edge protection to prevent damage during transit.
Product Parameters Table
| Parameter | Value |
|---|---|
| Grade | Q235B / SS400 |
| Standard | JIS G3101 |
| Thickness (mm) | 2.0 – 4.0 |
| Width (mm) | 1000 – 1500 (customizable) |
| Coil Inner Diameter (mm) | 508 / 610 |
| Surface | Hot Rolled Black |
| Tensile Strength (MPa) | 370 – 500 |
| Yield Strength (MPa) | ≥235 (Q235B) / ≥245 (SS400) |
| Elongation (%) | ≥26 |
Benefits for Automotive Parts Manufacturing
- Cost Efficiency: Hot rolled coils are more economical than cold rolled alternatives, reducing raw material costs for high-volume production.
- Consistent Quality: Our ISO9001-certified processes ensure every coil undergoes rigorous inspection for thickness, hardness, and surface defects.
- Global Logistics: With a team of 51-100 employees and a strong export network covering North America, South America, Europe, Asia, Africa, and Oceania, we can deliver reliably to any port.
- Customizable Processing: We offer optional services such as pickling, oiling, cutting to length, and slitting to meet your specific production requirements.
- Environmental Compliance: Our coils are produced with low-carbon technology, supporting sustainable manufacturing goals.
As a newly established but rapidly growing company (founded in 2025), Hemaokang Steel has already achieved an annual export value of US$50 million to US$100 million, thanks to our commitment to quality and customer satisfaction. Our main markets span across 15+ regions globally, and we have built lasting partnerships with automotive Tier 1 and Tier 2 suppliers. We are confident that our Carbon Steel Coils Hot Rolled Q235B SS400 JIS G3101 2-4mm will meet your strictest standards for performance and reliability.
We invite you to place a trial order or request a sample to experience the quality firsthand. Our dedicated sales team is ready to provide technical support, competitive pricing, and flexible delivery schedules. Contact us today to discuss your automotive parts requirements!
Frequently Asked Questions (FAQ)
-
What is the difference between Q235B and SS400?
Both grades offer similar mechanical properties. Q235B is a Chinese standard with a minimum yield strength of 235 MPa, while SS400 (Japanese standard) has a minimum yield of 245 MPa. SS400 is often preferred for projects requiring JIS compliance. Both are highly weldable and formable. -
Can these coils be used for deep drawing in automotive parts?
Yes, the low carbon content and good elongation (≥26%) make them suitable for moderate deep drawing. For complex deep drawing, we recommend discussing surface treatment options like pickling and oiling to improve formability. -
What are the typical lead times for orders?
For standard sizes (2-4mm thickness, 1250mm width), lead time is approximately 15-20 days after order confirmation. Custom sizes may require 25-30 days. We can prioritize urgent orders upon request. -
Do you provide third-party inspection certificates?
Absolutely. We can arrange inspection by SGS, BV, or other accredited agencies at an additional cost. Our standard delivery includes a mill test certificate (MTC) per ISO9001 requirements. -
What is the packaging for export?
Each coil is wrapped with waterproof paper, then steel strapped and protected with edge guards. For sea freight, we use wooden pallets or steel frames to prevent shifting. The packaging meets international shipping standards. -
Can you supply coils with a specific surface finish (e.g., pickled and oiled)?
Yes, we offer optional pickling and oiling services. This removes the oxide scale and provides a clean surface for painting or further processing. Please specify your requirements when ordering. -
What is the minimum order quantity (MOQ)?
Our MOQ for standard sizes is 25 tons (approximately 1-2 coils). For trial orders, we can accept a minimum of 10 tons. Custom sizes may have a higher MOQ. -
How do you ensure the dimensional tolerance?
We use advanced thickness gauges and width measurement systems during production. Our tolerances are within ±0.1mm for thickness and ±5mm for width, compliant with JIS G3101 standards.
Send Inquiry to This Supplier
1Yr
Year Established
2025
Annual Export Value
US$50 Million - US$100 Million
Total Employees
51 - 100 People
Product Certifications
ISO9001
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