Sandvik 9RU10 is a precipitation hardening, austenitic stainless steel of the 17Cr-7Ni PH type, with a high tempering effect and good structural stability. The grade is characterized by:

• High tempering effect, up to 400 MPa

• Low relaxation at high stresses and elevated temperatures

• Higher fatigue strength

• Very small distortion during tempering

• High service temperatures

Service temperature: up to 350°C (660°F)

Sandvik 9RU10 is suitable for complex, formed springs with high demands on spring force and service life. It is also suitable for use at elevated temperatures.

Applications
Sandvik 9RU10 is a most suitable grade for springs or other high strength components. It has good spring properties including corrosion resistance, mechanical strength and fatigue resistance, making it an excellent material in most situations. The greatest benefit can be found in applications where low relaxation properties are required even at elevated temperatures. Due to the high ageing effect of this precipitation hardenable grade, high strength can also be reached for complicated shapes or heavy gauge components.