 Eventually the private production of coinage led to a major disruption in the economy forcing the government to produce larger Ban Liang; eventually the Han government continue to change the size and weight of the Ban Liang weighing as light as 2.4 Zhu to 4 Zhu.In 119 BC Emperor Wu ordered the Ban Liang coins to be deprecated in favour of "San Zhu" cash coins (), which in turn were superseded by the "Wu Zhu" () series of coins in 118 BC.Despite being superseded by cash coinages with other inscriptions, the Ban Liang would continue to circulate in the Han dynasty.