Automotive Grade Hot Rolled Steel Coil – SAPH400 Structural Grade
Product Overview
Automotive-grade hot rolled steel coil is a specialty engineered material designed specifically for automotive structural components. This SAPH400 grade is formulated and processed to deliver excellent formability, consistent mechanical properties and reliable weldability, making it ideal for chassis frames, wheel components and structural body parts. It is optimized for high-volume automotive stamping and welding lines, ensuring consistent part quality and production efficiency.
Why Choose CNB Automotive HR Steel?
We supply a full range of automotive-certified hot rolled steel products from leading Chinese mills with automotive industry quality systems. Our automotive steel undergoes strict process control and batch testing to ensure consistent forming performance, dimensional accuracy and mechanical properties. We work closely with automotive component manufacturers to optimize material specifications for specific applications, helping customers reduce weight and improve part performance.
Key Specifications
| Item | Specification |
|---|---|
| Product Name | Automotive Grade Hot Rolled Steel Coil (HR) |
| Steel Grade | SAPH370 / SAPH400 / SAPH440 |
| Thickness Range | 1.5mm – 8.0mm |
| Standard Widths | 1000mm, 1250mm, 1500mm |
| Coil Inner Diameter | 760mm |
| Coil Weight | 5MT – 15MT per coil |
| Surface Condition | Pickled & Oiled (standard) / black |
| Applicable Standards | JIS G3113, automotive material standards |
| Minimum Yield Strength | ≥245MPa (SAPH400) |
| Minimum Tensile Strength | ≥400MPa (SAPH400) |
Core Advantages
- Automotive-optimized: Specially formulated and processed for automotive structural stamping and welding.
- Consistent performance: Tight mechanical property tolerances for stable automated production.
- Good formability: Supports bending, flanging and medium-complexity stamping processes.
- Excellent weldability: Compatible with automotive robotic welding lines.
- Lightweight potential: Enables optimized structural design for vehicle weight reduction.
Applications
This automotive grade hot rolled steel is widely used for automobile chassis frames, wheel rims, control arms, cross members, suspension components, truck frames and other load-bearing automotive structural parts.
Get a Quotation
We supply a full range of automotive hot rolled and cold rolled steel grades for passenger cars, commercial vehicles and heavy trucks. Sample materials and application-specific grade recommendations are available upon request. Contact our automotive materials team for technical support and a competitive quotation.
