镍和镍合金铸件

[中文适用范围]： 本文件规定了镍及镍合金铸件的要求。 指定的牌号代表适合各种腐蚀和高温环境中广泛应用的合金类型。 [外文原描述]： This document specifies requirements for nickel and nickel alloy castings. The grades specified represent types of alloys suitable for a broad range of application in a wide variety of corrosive and high temperature environments.