Spring steel for low temperatures

Whether in cooling systems, in space or other low temperature applications. Metal springs often have to withstand temperatures of up to – 200 degrees. Despite rising tensile strenght low temperatures have an unfavorable effect on the material, as the toughness decreases and brittle fractures can occur. For low-temperature applications, stainless spring steels, copper and nickel alloys are preferable to the patented spring wires and valve spring wires. The following table shows the limit temperatures.

table : Recommendations for use at low temperatures

When working at low temperatures, surface defects caused by machining (e.g. grooves) or bends with small bending radii must be avoided.

Properties of spring materials