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Automotive Beam Steel 700L Steel Plate, Sheet
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At SteelPro Group, we provide high-quality 700L steel plates and sheets designed for the demanding needs of automotive engineering. With years of experience in metallurgy and a strong focus on quality, we help manufacturers build safer, lighter, and more durable vehicles.
Keep reading to discover how 700L steel can transform your automotive projects—explore its technical specifications, industry applications, and the competitive edge SteelPro Group brings to your supply chain.
What Is 700L Steel?
700L steel is a high-strength, low-alloy (HSLA) hot-rolled steel plate designed for automotive beam applications. Its exceptional strength meets the demands of heavy-load vehicle components and ensures durability under extreme stress. SteelPro Group manufactures 700L steel plates and sheets under strict quality controls to meet global automotive standards. It is ideal for longitudinal beams, cross beams, chassis frames, and other critical load-bearing parts.
700L Steel Plate & Sheets Dimensions
SteelPro Group’s 700L steel plates and sheets are essential for making automotive beam coils and strips. We provide exceptional dimensional precision, ideal for high-volume manufacturing. Available in both standardized and custom-cut formats, they integrate smoothly into your production line.
| Product Form | Metric Dimensions | Imperial Dimensions |
| Steel Plate | Thickness: 3.0–12.0 mm | Thickness: 0.118–0.472 in |
| Width: 900–1600 mm | Width: 35.43–62.99 in | |
| Steel Sheet | Thickness: 3.0–12.0 mm | Thickness: 0.118–0.472 in |
| Width: 900–1600 mm | Width: 35.43–62.99 in |
Key Applications in Production:
- Beam Coils: Used for roll-forming semi-trailer main beams and cross members.
- Strips: Precision-cut strips for lightweight brackets, suspension parts, and reinforcement plates.
Customization & Quality:
- Tolerance: ±0.2 mm (0.008 in) for thickness, ±5 mm (0.20 in) for width.
- Processing: Slitting, edge-milling, and surface treatment are available to meet plate/sheet production requirements.
700L Steel Plate Chemical Composition
| Element | Content (%) |
| Carbon (C) | ≤0.10 |
| Silicon (Si) | ≤0.50 |
| Manganese (Mn) | ≤2.10 |
| Phosphorus (P) | ≤0.025 |
| Sulfur (S) | ≤0.010 |
| Aluminum (Al) | ≥0.015 |
| Niobium (Nb) | ≤0.09 |
| Vanadium (V) | ≤0.20 |
| Titanium (Ti) | ≤0.15 |
| Molybdenum (Mo) | ≤0.50 |
700L Steel Plate Mechanical Properties
| Property | Imperial Value | Metric Value |
| Yield Strength | ≥750 MPa | ≥109 ksi (kilopound per sq in) |
| Tensile Strength | 800–950 MPa | 116–138 ksi |
| Elongation | ≥10% (thickness <3mm) | ≥10% (thickness <0.118 in) |
| ≥12% (thickness ≥3mm) | ≥12% (thickness ≥0.118 in) | |
| 180° Cold Bending | Diameter = 2.0a | Diameter = 2.0a |
700L Steel Key Features for Automotive Beams
Exceptional Strength-to-Weight Ratio
700L steel achieves ultra-high yield strength (≥750 MPa) while maintaining a lightweight profile, enabling automakers to reduce vehicle weight without compromising structural safety.
Superior Formability for Complex Designs
Engineered with excellent cold bending and stamping performance, 700L steel adapts seamlessly to intricate beam geometries, minimizing production steps and material waste.
Fatigue and Impact Resistance
The micro-alloyed composition ensures outstanding fatigue resistance, which is critical for components subjected to dynamic loads, such as chassis frames and suspension systems.
Enhanced Weldability
Optimized levels of niobium (Nb) and titanium (Ti) refine grain structure, ensuring robust weld joints and simplifying assembly processes in high-volume manufacturing.
Cost-Effective Durability
Balancing premium performance with affordability, 700L steel extends the lifespan of automotive beams, reducing long-term maintenance and replacement costs.
700L Steel Plate & Sheet Applications
- Heavy-Duty Vehicle Beams
700L steel is the preferred material for longitudinal and cross beams in trucks, buses, and trailers, offering unmatched load-bearing capacity and resistance to deformation under stress.
- Chassis and Frame Systems
Its high tensile strength (800–950 MPa) ensures chassis components withstand torsional forces and vibrations, enhancing vehicle stability and safety.
- Axles and Drive Shafts
The steel’s fatigue-resistant properties make it ideal for axles and drive shafts, which endure cyclic stresses during long-haul operations.
- Suspension Components
700L’s excellent cold-forming capabilities allow for the precise shaping of suspension arms and brackets, reducing assembly complexity.
- Commercial Vehicle Cab Structures
In-cab frames and rollover protection systems, 700L steel provides critical impact resistance while minimizing weight.
- Electric Vehicle (EV) Platforms
As automakers transition to EVs, 700L supports lightweight battery enclosures and structural reinforcements, extending range without compromising safety.
We supply certified 700L steel plates and sheets tailored to your project’s specifications, backed by technical support and fast delivery.
Our 700L Steel Solutions Will Transform Your Auto Projects
At SteelPro Group, our 700L steel plates and sheets are rigorously tested to meet international automotive standards. We ensure your semi-trailer frames, chassis reinforcements, and load-bearing components outperform in strength, durability, and cost efficiency.
For high-volume orders, leverage our exclusive scalable pricing plans designed to optimize your supply chain.
