17-4 PH stainless steel is the most widely used stainless steel casting alloy of all precipitation hardening stainless steels. It contains approximately 15–17.5% chromium, 3–5% nickel, and 3–5% copper. The name comes from the chemical composition, which is approximately 17% chromium and 4% nickel.
17-4 PH Stainless Steel Features
High strength and hardness.
Excellent fatigue properties.
Good corrosion resistance.
Good castability, small heat treatment deformation.
Under high temperature processing conditions, 17-4 PH stainless steel has excellent mechanical properties.
17-4 stainless steel casting process
The investment casting process has a long history of making stainless steel castings, and this casting technique produces 17-4 ph stainless steel castings with accurate dimensions and a good surface finish. The steps for 17-4 ph stainless steel castings are as follows:
Make molds from 3d files.
Fill the mold with wax to make a wax pattern, check and modify the pattern if there is any defect.
The wax patterns are welded to form components.
Dip the wax into the ceramic slurry to form the shell.
Heat the ceramic case to remove wax.
Pouring the fusion crust.
Shell breaking, shot blasting or other surface treatment.