HC500 780DP Dual Phase Steel High Strength Cold Rolled Coil

HC500/780DP is a high-performance cold-rolled dual-phase steel. Its microstructure consists of a soft ferrite matrix and hard, dispersed martensite islands. This unique “soft-and-hard combined” structure delivers both ultra-high strength and excellent formability, perfectly balancing the two core demands of “strength” and “processability” in automobile manufacturing.

Specification Parameters

Core Performance Advantages

Ultra-high strength for safety protection With a minimum tensile strength of 780 MPa, it provides exceptional impact and deformation resistance for key body safety components. During a collision, it efficiently absorbs and transfers impact energy to maximize the integrity of the passenger compartment.

Excellent formability for design freedom Benefiting from the dual-phase microstructure, the material features a low yield-tensile ratio and high work-hardening exponent. It enables stamping of complex shapes such as bumpers and reinforcements with significantly reduced cracking risk, granting designers greater flexibility.

Lightweight pioneer for energy saving & emission reduction Under equivalent safety performance, HC500/780DP allows substantial thinning of parts, achieving 10%–15% body weight reduction. This directly improves fuel economy and effectively extends the driving range of new energy vehicles.

Superior weldability for convenient processing It offers good weldability compatible with mainstream automotive welding processes, including resistance spot welding, laser welding and CO₂ gas shielded welding. High-strength, reliable joints ensure production efficiency and product quality.

Typical Application Areas

With its outstanding performance, HC500/780DP is widely used in automotive components with strict strength and safety requirements:
Automotive bumper systems: Front/rear bumper beams and reinforcements, serving as the first line of defense to absorb and transfer impact energy efficiently during collisions.
Body suspension systems: Suspension arms, steering knuckles and other parts bearing complex dynamic loads to ensure driving stability and handling.
Body structural reinforcements: A-pillar/B-pillar reinforcements, rocker panels, door intrusion beams, floor cross members and more, forming a strong passenger safety cage and enhancing overall torsional rigidity.

Reasons to Choose Nature Steel Group

Complete specifications & flexible supply We offer a full thickness range from 0.3 mm to 2.5 mm and width from 1000 mm to 2150 mm, with customizable higher strength grades to meet diverse design needs.
Stable quality & reliable performance Sourced from major domestic steel mills with mature production processes and consistent quality, our products have passed PPAP approval from numerous leading automakers.
Optimized cost & value creation Through material lightweighting and precision processing services, we help customers achieve all-round optimization in material cost, processing efficiency and product performance, creating win-win value.