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DC53D Gi Galvanised Steel Plate
DC53D+Z is an ultra-high-formability, hot-dip galvanized steel that complies with EN 10346 standards. It is designed for complex stamping applications requiring exceptional ductility and surface finish. GNEE STEEL Group offers DC53D+Z coil and sheet production, customized coating options (galvanized, galvanized, and zinc-aluminum-magnesium alloy), and further processing services such as bending, slitting, and painting for the automotive, appliance, and construction industries.
DC53D Chemical Composition
| Element | Content Range | Control Purpose |
| C | ≤0.06% | Improve weldability & ductility |
| Mn | ≤0.40% | Suppress work hardening |
| P | ≤0.020% | Eliminate cold brittleness |
| Als | ≥0.035% | Refine grain and optimize r-value |
DC53D Mechanical properties
| Parameter | Typical Value | VS. DC52D |
| Yield Strength (ReH) | 200-380 MPa | More uniform strength distribution |
| Tensile Strength (Rm) | 260-420 MPa | Deep draw stability ↑30% |
| Elongation (A₈₀) | ≥28% | ↑7% vs DC52D |
| Plastic Strain Ratio (r-value) | ≥2.0 | Complex surface forming ability ↑40% |
| Work Hardening Index (n-value) | ≥0.20 | Strengthened necking resistance |
Surface treatment system
| Technical Solution | Characteristics |
| Zero Zinc Flower Surface | Ra=0.6-0.9μm |
| Finishing Treatment | Mirror/satin finish optional |
| Chromium-Free Passivation | Environmentally friendly, fingerprint resistant |
| Zinc-Aluminum-Magnesium Coating | Salt spray >4000h |
| Coating | Color/pattern/surface effect optional |
DC53D Galvanized Steel Benefit
- Excellent deep drawing performance: DC53D grade steel features high ductility and low yield strength, with an LDR of ≤2.5.
- Excellent corrosion resistance: A coating provides rust protection for the steel substrate. Coating thickness (20-350g) and coating material (+Z, +AZ, +ZAM) can be selected based on application requirements.
- Surface quality: Smooth and aesthetically pleasing, and various surface treatments such as painting and lamination are possible.
- Lightweighting: Thinner substrates result in lighter parts.
application scenarios
GNEE STEEL's qualifications
GNEE STEEL participated in the exhibition
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