Jsc270d (DC03) High Ductility Cold Rolled Coil for Door Inner Panels
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| Customization: | Available |
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| Type: | Steel Plate |
| Standard: | ASTM, AISI, GB, JIS, DIN, BS |
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Basic Info.
- Model NO.
- JSC270D-KF
- Certification
- ISO, RoHS, IBR
- Surface Treatment
- Coated
- Technique
- Cold Rolled
- Application
- Mold & Dies, Ship Plate, Boiler Plate, Container Plate, Flange Plate
- Special Use
- Cutting Tools, Measuring Tools, Cutters in Common Steel, High-strength Steel Plate, Wear Resistant Steel, Silicon Steel
- Stock
- Stock
- Elongation (A80)
- ≥38%
- Transport Package
- Standard Export Package
- Trademark
- MESCO
- Origin
- China(Mainland)
- Production Capacity
- 10000tons/Year
Product Description
JSC270D (DC03) High Ductility Cold Rolled Steel Coil
Precision-Engineered for Complex Automotive Interior & Fuel System Components
Product Overview
JSC270D is an EN 10130 DC03-equivalent cold-rolled steel coil optimized for deep drawing applications. With exceptional formability and consistent mechanical properties, it enables high-yield manufacturing of intricate geometries in door inners and fuel containment systems while reducing material waste by 15-20% versus conventional steels.
Certifications & Standards
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Material Standards
EN 10130 DC03 JIS G 3141 SPCD ASTM A1008 CS Type B -
Quality Systems:
IATF 16949 ISO 14271 (Weldability) IMDS 3.0 Compliant -
Eco-Compliance:
REACH SVHC-Free RoHS 3
Key Technical Specifications
| Parameter | Value |
|---|---|
| Tensile Strength | 340-410 MPa |
| Yield Strength (Rp0.2) | 180-260 MPa |
| Elongation (A80) | ≥38% |
| Strain Hardening (n) | ≥0.22 |
| Plastic Anisotropy (r) | ≥1.8 |
| Thickness Range | 0.5-2.0 mm (±0.03 mm tolerance) |
| Coil Dimensions | ID: 508/610 mm; Width: 800-1,850 mm |
| Surface Finish | Oiled (0.8-1.2 g/m²), Class A |
Core Advantages for Automotive Applications
1. Superior Formability
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Deep Drawing Capability: Achieves LDR ≥2.2 (Limiting Drawing Ratio) for fuel tank domes without cracking.
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Edge Stretching: 25% higher stretch flangeability vs. DC01 grades (HEC ≥0.45).
2. Manufacturing Efficiency
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Stamping Yield: >98% success rate in complex door inner panels (60° undercut angles).
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Weld Consistency: Stable resistivity (45 nΩ·m) enables 600+ spot welds/hour at 7.2 kA.
3. Surface-Sensitive Performance
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Paint Adhesion: Ra 0.8-1.2 μm profile ensures Class A coating appearance.
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Hemming Integrity: Zero flaking in 180° tight hems for door panel edges.
Performance Benchmarking
| Property | JSC270D | DC01 Equivalent | Improvement |
|---|---|---|---|
| Drawing Depth (Dome) | 65 mm | 52 mm | +25% |
| Springback Angle | ≤0.8° | ≥1.5° | ↓47% |
| Scrap Rate | 1.2% | 4.5% | ↓73% |
| Tool Wear Life | 500,000 cycles | 300,000 cycles | +67% |
Application Validation
Case 1: EV Door Inner Panel (Toyota e-TNGA Platform)
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Component: Front door inner structure
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Thickness: 0.8 mm
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Results:
Weight Reduction: 1.8 kg/door vs. 1.2 mm aluminum
Dimensional Accuracy: ±0.15 mm after hemming
Corrosion Resistance: Passed 120-cycle VDA 621-415 test
Case 2: Hybrid Fuel Tank (Bosch Modular System)
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Component: Asymmetric tank shell
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Thickness: 1.2 mm
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Results:
Permeability: <0.5 g/day (CE10 fuel, 40ºC)
Crush Resistance: Withstands 50 kN top load
Weld Seam Integrity: 0 leaks at 35 kPa pressure test
Supply Chain Excellence
| Process | Technology |
|---|---|
| Steelmaking | BOF → RH Degassing |
| Rolling | 6-Stand Tandem Mill + Skin Pass |
| Annealing | Continuous Galvanizing Line (CGL) |
| Delivery | ETL inspected, VAP protected |
Sustainability Profile
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Recycled Content: ≥30%
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Carbon Footprint: ≤1.6 tCO2/t (ISO 14064 certified)
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Circular Economy: 100% recyclable with JIS G 2401 compliance
Why Automotive Tier 1s Choose JSC270D?
Door Panel Mastery: Enables 0.6 mm ultra-thin designs with 45% stiffness increase
Fuel System Safety: Certified to SAE J30 R9 permeation standards
Cost Leadership: Saves $14.50/vehicle vs. aluminum solutions
Green Manufacturing: 35% lower press energy consumption
Technical Support Services
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Forming Simulation: AutoForm® feasibility analysis for complex draws
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Tooling Optimization: Wear-resistant coating specifications for dies
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Prototype Testing: In-house 1,500-ton servo press trials
Contact our Automotive Steel Team for:
1 Material samples 2 DFM guidelines 3 On-site stamping trials
*JSC270D: Where deep drawing complexity meets mass-production perfection.*
FAQ
1.Q: How long is your delivery time?
A: Within 7-15 days after receiving the deposit or L/C at sight. Longer lead time will be required for special designed products.
2.Q: Do you provide samples ? is it free or extra charged?
A:Surely, product sample is complimentary but the delivery fee will be covered by our customers.
3.Q:What's your payment terms?
A:Our Payment trems will be
(1) 100% T/T
(2) 30% in advance,others before shipment.
4. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
5.what can you buy from us?
Excellent quality steel at competitive prices
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