Can 17-4 be cast?
17-4 PH Stainless Steel (SAE type 630 stainless steel), is the martensitic precipitation-hardened stainless steel casting grade. Typical usage of 17-4 stainless steel castings is where high strength and a modest level of corrosion resistance is required.
What is investment cast stainless steel?
Unlike other materials, stainless steel investment castings have a built-in chromium oxide layer that provides exceptional anti-corrosive properties. These corrosion resistant properties make stainless steel castings ideal for military, medical, and industrial applications.
Can 17-4 be hardened?
Properties. 17-4 can be heat treated to high levels of strength and hardness, and features corrosion resistance and machinability comparable to austenitic 304 stainless. Being martensitic, 17-4 is magnetic. 17-4 is capable of being hardened up to approximately 44 Rc when heat treated to condition H900.
What type of steel is 17-4?
stainless steel
17-4 stainless steel, also known as SAE Type 630, is a common and exceptionally durable type of steel used in a diverse variety of industries and applications. The numbers “17-4” refer to its composition: ≈17% chromium and ≈4% nickel. It also can include between 3 and 5% copper.
Why is it called investment casting?
Investment casting is a centuries-old casting process that centers around lost-wax casting. It’s called “investment casting” because the mold pattern used in this casting process becomes “invested” with the liquid refractory material.
What does the PH stand for in 17 4PH?
PH stainless steels are a group of alloys that are resistant to the effects of corrosion. To increase their yield strength, these alloys are subjected to heat treatment during precipitation hardening (PH) or age hardening.
Do investment castings need draft?
Unlike sand casting, investment casting does not require a draft. These process qualities can provide net shape or near-net shape castings, which provide customers with significant cost savings in material, labor, and machining.