本规范规定了使用电子束焊接工艺连接金属和合金的程序和要求。这些程序通常用于航空航天部件的高质量电子束焊接，其故障可能导致航空航天飞行器或其主要部件之一的损失、失控或载人航空航天飞行器乘员的严重受伤，但使用不限于此类应用。

This specification defines the procedures and requirements for joining metals and alloys using the electron-beam welding process.These procedures are used typically for high-quality, electron-beam welding of aerospace components, the failure of which could cause loss of the aerospace vehicle or one of its major components, loss of control, or significant injury to occupants of a manned aerospace vehicle, but usage is not limited to such applications.