From the previous work, iron, manganese and tin were chosen as the third alloying elements in order to improve the spring property of plain 60/40 brass. The effects of the respective elements on spring properties and bending characteristics (formability) of 60/40 brass sheet were compared with each other. Those elements not only improved the spring properties remarkably, but also extended the suitable range of low-temperature annealing as compared with the case of plain 60/40 brass. The present results showed that manganese and tin would be the most favorable elements for practical purposes
