本规范涵盖了焊丝形式的镁合金。该焊丝通常用作镁合金的气体保护焊和钨极气体保护焊的填充金属，其中铝是一种重要的合金元素，尤其是那些需要高质量接头的零件，但其用途不限于此类应用。

This specification covers a magnesium alloy in the form of welding wire.This wire has been used typically for use as filler metal for gas-metal-arc and gas-tungsten-arc welding of magnesium alloys with aluminum as a significant alloying element particularly those parts requiring consistently high-quality joints, but usage is not limited to such applications.