The primary objective of ASTM A895 is to provide stainless steels that can be machined at high speeds with minimal tool wear. Standard austenitic stainless steels generate significant heat during cutting and tend to bond to cutting tools (known as "built-up edge").
If you are building something that will touch water, soil, or road salt, don't skimp on the tie wire. Specify ASTM A895. astm a 895