A copper-nickel-tin alloy, which can be cold, worked, and heat-treated to reach very high tensile strengths or hardnesses and in addition it has an excellent corrosion resistance. The Materion alloy BrushForm® 158 (Toughmet 3) is produced using a rapid solidification technique: the EquaCast® process which avoids an excessive chemical segregation. It is suitable for stamping before or after heat treatment (spinodal decomposition). BrushForm® 158 (Toughmet 3) is delivered in various tempers: soft annealed, cold deformed and mill hardened. The bendability of the temper TB00, TD01, TD02 and TM00 is excellent in good and bad way. BrushForm® 158 (Toughmet 3) is particularly resistant to thermal stress relaxation and to alternate stresses (high fatigue strength). It also offers remarkable dimensional stability after the spinodal decomposition (no-distortion, caused by differential shrinkage).

Typical uses
BrushForm® 158 (Toughmet 3) offers a range of mechanical and physical properties making it ideal for the production many parts used in various field of applications field, such as the connector industry (spring contacts, clips, etc.) the watch industry (hands, wheels, bridge, etc.) and the automotive industry