本规范涵盖熔模铸件形式的耐腐蚀钢。这些铸件通常用于要求具有良好耐腐蚀性和高达600 mDF（316 mDC）强度的零件，但用途不限于此类应用。某些加工程序和使用条件可能导致这些铸件发生应力腐蚀开裂；ARP1110建议尽量减少此类情况。如果认为应力腐蚀是一个因素，则应在不低于1000 mDF（538 mDC）的温度下进行沉淀热处理。

This specification covers a corrosion-resistant steel in the form of investment castings.These castings have been used typically for parts requiring good corrosion resistance and strength up to 600 \mDF (316 \mDC), but usage is not limited to such applications.Certain processing procedures and service conditions may cause these castings to become subject to stress-corrosion cracking; ARP1110 recommends practices to minimize such conditions. Where stress-corrosion is considered to be a factor, precipitation heat treatment should be performed at a temperature not lower than 1000 \mDF (538 \mDC).