Grade 1.4509 | X2CrTiNb18 is well suited for cold forming, e.g. bending, flanging and deep drawing, and is easily weldable by all methods except gas welding. It is used for silencer and exhaust gas detoxification systems in motor vehicles. In addition, the X2CrTiNb18 grade has good corrosion resistance to the stresses occurring in the exhaust system.
| Short designation | Aisi/SAE | Material number |
| X2CrTiNb18 | 441 | 1.4509 |
| Proof stress Rp0,2 MPa min. | Tensile strength Rm MPa | Elongation at fracture A80 % min. |
| 250 | 430-630 | 18 |
| C | Cr | Ni min. | N | Si | Mn | P | S |
| 0.030 | 17.5-18.5 | - | - | 1.00 | 1.00 | 0.040 | 0.015 |
Other steel types to mill standards and international standars on request.