DC05
1.0312Cold-rolled steel for extra deep drawing. The highest formability grade in the EN 10130 drawing steel series (r-value ≥1.8). Very low yield strength for excellent deep drawability. Used for complex deep-drawn automotive body panels (doors, fenders), kitchen sinks, washing machine drums, and any severe stamping application.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇪🇺 | EN | Europe | DC05 | 1.0312 | 100% |
| 🇪🇺 | DIN | Europe | St 1505 (old) | — | 90% |
Sources: EN 10130:2006, DIN 1623
Chemical composition comparison (wt%)
Side-by-side: DC05 (EN) (EN 10130:2006) vs St 1505 (old) (DIN)
| Element | DC05 (EN) | St 1505 (old) (DIN) | Overlap |
|---|---|---|---|
| C | 0–0.06% | — | — |
| Mn | 0–0.35% | — | — |
| P | 0–0.025% | — | — |
| S | 0–0.025% | — | — |
Mechanical properties
Cold worked
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 270–330 | MPa |
| Yield Strength | 100–160 | MPa |
| Elongation | ≥ 40 | % |
| Elastic Modulus | ≥ 210 | GPa |
| Density | ≥ 7.85 | g/cm3 |
Compatibility verdict
DC05 and St 1505 (old): 90% composition match
Close equivalents but NOT identical.
Related materials
S355JR
1.0045High-strength low-alloy structural steel with minimum yield strength of 355 MPa. Standard grade for bridges, buildings, cranes, and general structural applications. Impact tested at +20°C (JR).
S690QL
1.8928High-strength quenched and tempered fine-grain structural steel with minimum yield strength of 690 MPa. Used for heavily loaded structures like mobile cranes, mining equipment, bridges, and pressure vessels.
S275JR
1.0044Medium-strength structural steel with minimum yield strength of 275 MPa. Bridges the gap between S235JR and S355JR. Used for general structural applications, lattice towers, masts, and light crane components. Impact tested at +20°C (JR).
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