This document applies to various molybdenum and molybdenum alloy products (including sintered billets, ingots and semi-finished products) produced by smelting, powder metallurgy and pressure processing.
YS/T 660-2022 history
2022YS/T 660-2022 Molybdenum and molybdenum alloy processing product grades and chemical compositions
2007YS/T 660-2007 Designation and composition of molybdenum and molybdenum alloy wrought product