天津铝品厂在有关单位协助下试制成功了铝锰合金24CM 压力锅和32CM 双篦蒸锅,现己小批量投产。其合金成分是:锰1.0～1.5%,铁0.4～0.6%,硅<0.6%,铜0.01%,其余为铝.机械性能(退火状态)如下:抗拉强度11Kg/mm~2,延伸率37%,硬度 HB28.1。这种铝锰合会较工业纯铝具有较高的强度和良好的塑性,适于拉伸和焊接;尤其是 Tianjin Aluminum Products Factory successfully developed the aluminum-manganese alloy 24CM pressure cooker and the 32CM double-type retort with the help of the relevant units. Now it is put into operation in small quantities. Its alloy composition is as follows: manganese 1.0-1.5%, iron 0.4-0.6%, silicon <0.6%, copper 0.01%, and the balance being aluminum. The mechanical properties (annealed state) are as follows: tensile strength 11Kg / mm ~ 2, elongation 37 %, Hardness HB28.1. This aluminum-manganese alloy is superior to industrial pure aluminum in strength and good ductility for stretching and welding; especially