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DX57D | 1.0853
Grade DX57D is a super deep drawing grade and is suitable for extremely high forming requirements.
Low-carbon steel for cold forming
Properties according to DIN EN 10 346
Steel type
| Short designation | VDA239-100 | Surface finish | Material number |
| DX57D | CR5 | +Z,+ZA | 1.0853 |
| DX57D | CR5 | +ZF,+ZM | 1.0853 |
| DX57D | CR5 | +AS | 1.0853 |
Mechanical properties (transverse)
| Yield strength 1) Re MPa max. | Tensile strength Rm MPa | Elongation at 2) fracture A80 % min. | Anisotropy r90 min. | Strain hardening exponent n90 min. |
| 120–170 | 260–350 | 41 | 2.14) | 0.22 |
| 120–170 | 260–350 | 39 | 1.94)5) | 0.215) |
| 120–170 | 260–350 | 41 | 1.94)5) | 0.215) |
Chemical composition (heat analysis)
| Percentage by weight % max. | |||||
| C | Si | Mn | P | S | Ti |
| 0.12 | 0.50 | 0.60 | 0.10 | 0.045 | 0.30 |
1) Where no yield strength is defined, the respective values shall apply to the 0.2 % proof stress Rp0.2, otherwise for the lower yield strength (ReL).
2) Reduced minimum values of elongation at fracture apply to product thicknesses 0.50 mm < t < 0.70 mm (minus 2 units), 0.35 mm < t < 0.50 mm (minus 4 units), and t < 0.35 mm (minus 7 units).
3) The maximum yield strength for surface class A is Re = 360 MPa.
4) For product thicknesses of 1.5 mm < t < 2 mm, the minimum r90 value is reduced by 0.2, and for t ≥ 2 mm by 0.4.
5) Depending on the product thickness, the minimum r90 value is reduced as follows: 0.50 mm < t < 0.70 mm by 0.2; 0.35 mm < t < 0.50 mm by 0.4, and t < 0.35 mm by 0.6.
Also depending on the product thickness, the minimum n90 value is reduced as follows: 0.50 mm < t < 0.70 mm by 0.01; 0.35 mm < t < 0.50 mm by 0.03, and t < 0.35 mm by 0.04.
