Cold rolled steel DC07
Cold rolled steel DC07 is engineered specifically for ultra-deep drawing production environments that require high elongation, low yield strength and excellent surface finish. Compared with traditional cold rolled grades, DC07 demonstrates superior flexibility during forming, allowing manufacturers to produce highly complex shapes without risk of tearing, wrinkling or cracking. This makes DC07 widely used in automotive inner panels, appliance shells, fuel tanks, pressure vessel parts and precision housings where dimensional accuracy and forming quality are critical.
One of the decisive advantages of DC07 is its advanced microstructure stability after cold reduction and annealing, enabling consistent performance across large production batches. Its smooth and defect-free surface also reduces coating consumption in painting, galvanizing and electroplating, helping factories reduce production costs and improve efficiency.
Grade Comparison Table - DC07 vs Other Cold Rolled Grades
| Grade | Formability | Yield Strength | Typical Use | Deep Drawing Capacity |
|---|---|---|---|---|
| DC03 | Good | Medium | General stamping | ★★★☆☆ |
| DC04 | Very Good | Low | Automotive parts | ★★★★☆ |
| DC07 | Excellent | Very Low | Ultra-deep drawing & complex shapes | ★★★★★ |
| DC06 | Very Good | Very Low | Difficult forming | ★★★★☆ |
DC07 | 1.0898: Properties according to DIN EN 10 130
Steel type
| Short designation | VDA239-100* | Material number |
| DC07 | - | 1.0898 |
* Comparative grade, therefore minor deviations from DIN EN values possible
DC07 | 1.0898: Mechanical properties (transverse)
| Yield strength1) Re MPa max. | Tensile strength Rm MPa | Elongation at fracture2) % min. A80 | Anisotropy r903)4) min. | Strain hardening exponent n903) min. |
| 150 | 250-310 | 44 | 2.5 | 0.230 |
DC07 | 1.0898: Chemical composition (heat analysis)
| Percentage by weight % max. | ||||
| C | P | S | Mn | Ti |
| 0.1 | 0.020 | 0.020 | 0.20 | 0.2 |
DC07 undergoes high-precision rolling, annealing and temper rolling, creating a mirror-like surface with extremely low roughness. Manufacturers using DC07 report:
- Improved paint appearance
- Increased coating adhesion
- Fewer post-processing defects
- Higher brand-level product finish
To source DC07 or other cold rolled steel grades, GNEE STEEL supplies DC01, DC03, DC04, DC05, DC06 and DC07, offering competitive pricing, global exporting services and technical support to help customers reduce cost and improve production success.
