High temperature stainless steel tubing maintain their mechanical properties when exposed to elevated temperatures on either a short- or long-term basis.

Depending on the area of application these temperatures can rise e.g. to
- 500°C (932°F) in chemical processes
- 700°C (1,292°F) in power plant applications
- 1,000°C (1,832°F) for furnace engineering

With their increased concentration of chrome, silicon and aluminium they are especially resistant under the influence of hot gases as well as in salt and metal melting. However, the individual corrosion resistance is always dependent on the surrounding conditions, and can therefore not be precisely determined in a single testing.

304H | 321H | 309S | 310S | 347H