DC06 cold rolled steel coil belongs to the ultra-deep drawing category under EN 10130 standard, designed with ultra-low carbon content (≤0.006%) to achieve extraordinary ductility. This chemical composition distinguishes it from other cold rolled steel coils, providing exceptional elongation rates (≥38%) and high r-values (≥2.1) that prevent cracking during extreme forming processes. As automotive designs evolve toward more complex curved surfaces and lightweight structures, the demand for high-performance DC06 cold rolled steel coil from reliable cold rolled steel coil supplier has grown exponentially.
Cold Rolled Steel Coils
DC Series Cold Rolled Steel Coils Grade Comparison (Automotive Focus)
| Grade | Elongation (A80) | Yield Strength (MPa) | R-value | Formability Level | Typical Automotive Applications |
|---|---|---|---|---|---|
| DC01 | ≥28% | 195-330 | ≥1.0 | General Forming | Simple brackets, non-critical parts |
| DC03 | ≥30% | 180-300 | ≥1.5 | Medium Forming | Seat frames, interior panels |
| DC04 | ≥34% | 160-240 | ≥1.8 | Deep Drawing | Door panels, roof covers |
| DC05 | ≥36% | 140-200 | ≥2.0 | Extra Deep Drawing | Complex inner structures |
| DC06 | ≥38% | ≤170 | ≥2.1 | Ultra Deep Drawing | Fuel tanks, fenders, complex body parts |
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Automotive Application Scenarios of DC06 Cold Rolled Steel Coil
The superior properties of DC06 cold rolled steel coil make it the preferred choice for the most demanding automotive components:
Exterior Body Panels: Fenders, hoods, door skins requiring flawless surface finish after painting
Complex Structural Parts: Fuel tanks, oil pans, wheel arches with extreme deep drawing requirements
Interior Components: Dashboard frames, pillar reinforcements, complex inner panels
Lightweight Parts: Thin-gauge components balancing weight reduction and structural integrity
Professional Specifications of GNEE STEEL DC06 Cold Rolled Steel Coil
| Parameter | Standard Range | Customization Options | Tolerance Control |
|---|---|---|---|
| Steel Grade | DC06 (EN 10130) | Equivalent grades available | Certified to standard |
| Thickness | 0.3-3.0mm | 0.15-6.0mm | ±0.02mm (thin gauge) |
| Width | 800-1650mm | 500-1850mm | ±1.0mm |
| Coil ID | 508mm/610mm | Custom IDs available | ±0.5mm |
| Surface Quality | FB (Finest Finish) | FC/FD available | Ra 0.5-1.0μm |
| Yield Strength | ≤170MPa | Adjusted per request | ±10MPa |
| Tensile Strength | 270-370MPa | Custom ranges | ±15MPa |
| Elongation (A80) | ≥38% | Enhanced options | Tested per batch |
| R-value | ≥2.1 | Premium ≥2.3 | Verified per coil |
| Annealing | Continuous annealing | Batch annealing available | Controlled atmosphereArcelorMittal |
| Edge Condition | Slit edge | Mill edge available | Deburred optional |
| Certification | EN 10130, VW 50065 | GM 6186M, other standards | Full test reports |
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Advantages of DC06 Cold Rolled Steel Coil for Automotive Manufacturing
Unmatched Formability: The ultra-low carbon composition enables extreme deep drawing without cracking, ideal for complex automotive shapes.
Superior Surface Finish: Smooth, uniform surface perfect for automotive electro-coating and painting processes.
Precise Dimensional Tolerance: Tight thickness and width control ensures consistent stamping performance.
Excellent Weldability: Compatible with all automotive welding processes (spot, MIG, TIG) without preheating.
Consistent Quality: Uniform mechanical properties across entire coil for mass production stabilityArcelorMittal.
Cost Efficiency: Reduces scrap rates and secondary processing compared to lower-grade cold rolled steel coils.
Why Choose GNEE STEEL as Your Cold Rolled Steel Coil Supplier?
As specialized cold rolled steel coil manufacturers with years of automotive industry experience, GNEE STEEL delivers DC06 cold rolled steel coil that exceeds industry expectations. Our wholesale cold rolled steel sheet in coil services provide flexible order quantities, from small batch trials to full production runs. We maintain complete quality control throughout production, from raw material selection to final packaging, ensuring every DC06 coil meets automotive specifications. Our technical team supports automotive customers with material selection advice, stamping parameter optimization, and quality troubleshooting.
For automotive manufacturers seeking the highest quality cold rolled carbon steel coil for complex deep drawing applications, DC06 cold rolled steel coil from GNEE STEEL represents the optimal solution. Its exceptional formability, surface quality, and dimensional accuracy solve the most challenging automotive stamping problems while improving production efficiency and reducing costs. As your reliable cold rolled steel coil supplier, we offer customized solutions tailored to your specific automotive component requirements.
Frequently Asked Questions (FAQ)
Q1: What makes DC06 cold rolled steel coil different from standard cold rolled steel coils?
A: DC06 features ultra-low carbon content (≤0.006%) and specially controlled annealing process, providing significantly higher elongation (≥38%) and r-value (≥2.1) than standard grades, enabling ultra-deep drawing operations impossible with regular cold rolled steel coils.
Q2: Is DC06 cold rolled steel coil suitable for all automotive components?
A: DC06 is specifically designed for complex deep drawing parts like fuel tanks, fenders, and intricate body panels. Simpler components may use DC01-DC04 grades for cost optimization, while structural parts may require high-strength alternatives.
Q3: What surface finishes are available for DC06 cold rolled steel coil?
A: We offer FB (finest finish) as standard, ideal for automotive exterior parts requiring painting. FC and FD finishes are available for specific interior applications, with roughness controlled between Ra 0.5-1.0μm.
Q4: Can you provide custom sizes for DC06 cold rolled steel coil?
A: Yes! As flexible cold rolled steel coil manufacturers, we offer thickness from 0.15-6.0mm, width from 500-1850mm, and custom coil IDs to meet your exact automotive production requirements.
Q5: What quality certifications do you provide for DC06 cold rolled steel coil?
A: Our DC06 complies with EN 10130 standard and meets major automotive specifications including VW 50065 and GM 6186M, with complete mill test reports for every batch.
