Reliable Steel is a leading distributors and exporter of Ferritic Martensitic pipes in mostly countries. We offer best quality ferritic martensitic pipes but we are specialised in ASTM A268 TP 409 tubes. These tubes are typically utilized in applications requiring high-temperature strength and ductility.
Email us Whatsapp us Call usASME SA 268 TP 409 is a titanium-stabilized, ferritic stainless steel specified by the American Society of Mechanical Engineers (ASME) standard SA 268, with its primary application being automotive exhaust systems. It is valued for its good high-temperature corrosion resistance, weldability, and mechanical properties, though its appearance is a secondary consideration. This steel has a low carbon content and is not hardenable by heat treatment, making it suitable for applications requiring high-temperature strength and ductility.
| Grade | TP 409 |
| UNS DesignationB |
S40900 |
| Element | Composition, % |
| C, max | 0.08 |
| Mn, max | 1.00 |
| P, max | 0.045 |
| S, max | 0.045 |
| Si, max | 1.00 |
| Ni | 0.50max |
| Cr | 10.50-11.75 |
| Mo | … |
| Al | … |
| Cu | … |
| N | … |
| Ti | 6xC min; 0.75max |