Docol 900M martensitic steel helps to improve crash-resistance and provides a reliable guarantee for lightweight design and cost-effective production in the automotive industry. Docol is one of the cold-rolled high-strength steels on the market and has become an ideal material for applications in the automotive industry such as side collision beams, bumpers and structural parts.
Mechanical Properties
| Steel Grade | Standard | Plating | Test Direction | Yield Strength Rp0.2 (MPa) | Tensile Strength Rm (MPa) | Extension Rate A80 (min %) | 90° Bending Inside Diameter |
| Docol CR700Y 900T-MS | SSAB | UC,EG | L | 700-1000 | 900-1100 | 3 | 3.0xt |
Chemical Composition
| C (max %) | Si (max %) | Mn (max %) | P (max %) | S (max %) | Al (min %) | Nb+Ti (max %) |
| 0.08 | 0.40 | 0.24 | 0.025 | 0.010 | 0.015 | 0.10 |
Plating
| Plating Type | Plating Grade | Standard | Single-sided coating quality, single-point test（g/m2） | Single side thickness, for reference only (μm) |
| EG | ZE25/25 | EN 10152 | 12- | 1.7- |
| EG | ZE25/50 | EN 10152 | 29- | 4.1- |
| EG | ZE25/75 | EN 10152 | 47- | 6.6- |
| EG | ZE25/100 | EN 10152 | 65- | 9.1- |