Originally Posted by T-Mar

Mangaloy is Tange's brand name for their manganese-molybdenum (MnMo)tubesets. These tubesets have tensile strength that is between hi-tensile steels and chromium-molybdenum (CrMo). Consequenty, their weight is also in between the two. However, the real advantage of MnMo tubesets is that they retain a higher percentage of their strength after brazing. As a result, control of the brazing temperature is not as critical as with CrMo and it is more suitable to semi-automated, mass production. Introduction of Mangaloy and similar tubesets was instrumental in lowering the cost of bicycles with butted framesets in the early 1980s.