Abstract: A process for producing a copper-beryllium alloy product. The process comprises preparing a base alloy having 0.15 wt %-4.0 wt % beryllium and having grains and an initial cross section area. The process further comprises cold working the base alloy to a percentage of cold reduction of area (CRA) greater than 40%, based on the initial cross section area, and heat treating the cold worked alloy to produce the copper-beryllium alloy product. The grain structure of the copper-beryllium alloy product has an orientation angle of less than 45° when viewed along the direction of the cold working. The copper-beryllium alloy product demonstrates a fatigue strength of at least 385 MPa after 106 cycles of testing.

Abstract: Disclosed are various processes for preparing a strip or plate of a copper-nickel-tin alloy. The processes begin with an input, usually of a rectangular shape. The input is hot rolled and annealed. The input is then subjected to a first cold reduction, a first annealing a second cold reduction, a second annealing, a third cold reduction, and a third annealing. If desired, a fourth cold reduction, a fourth annealing, and a fifth cold reduction may be performed. The resulting strip or plate is very smooth and has increased fatigue life, along with high strength.

Abstract: Disclosed are various processes for preparing a strip or plate of a copper-nickel-tin alloy. The processes begin with an input, usually of a rectangular shape. The input is hot rolled and annealed. The input is then subjected to a first cold reduction, a first annealing a second cold reduction, a second annealing, a third cold reduction, and a third annealing. If desired, a fourth cold reduction, a fourth annealing, and a fifth cold reduction may be performed. The resulting strip or plate is very smooth and has increased fatigue life, along with high strength.