Alloy 17-4PH (UNS S17400), Type 630, is a chromium-nickel-copper precipitation hardening martensitic stainless steel with an addition of niobium. 17-4PH combines high strength and hardness with good corrosion resistance. The alloy is furnished in the solution annealed condition (Condition A). 17-4PH Stainless Steel-Introduction, Applications, Data Sheet17-4PH is a precipitation hardened (PH) martensitic stainless steel consisted of copper and niobium/tantalum. This grade features high strength, hardness and corrosion resistance. Its mechanical properties can be optimized by heat treatment with the compression strength achieving up to 1100-1300 mpa (160-190 ksi).
A typical cycle might consist of heating to very high temperatures, 995°C (1750°F); cooling to -75°C (100°F) to effect the transformation to a martensitic structure; holding for three to eight hours, then precipitation-hardening between 450 and 565°C (840 and Alloy 17-4 PH High Strength Stainless Steel Broder Aug 02, 2017 · Alloy 17-4 PH is a chromium-copper precipitation hardening martensitic stainless steel with Cu and Nb/Cb additions.. 17-4PH Stainless Steel combines high strength, hardness (up to 572°F / 300°C), and moderate corrosion resistance.Alloy 17-4 PH withstands corrosive attacks better than any of the standard hardenable stainless steels and is comparable to Alloy 304 in most media. PRODEC® 17-4 - Rolled Alloys, Inc.As a result, improved machining properties are realized in all heat treated conditions (Condition A, H1150, H1025, etc.) PRODEC 17-4 round bar is produced in diameters ranging from 9/16" to 6-1/2". 17-4 is also commonly referred to as type 630 stainless. It is a martensitic, precipitation hardening stainless steel.
The martensitic PH steels, of which 17/4PH is the most common, transform to martensite at low temperatures, typically around 250°C, and are further strengthened by ageing at between 480 and 620°C. The austenitic-martensitic PH steels are essentially fully austenitic after solution treatment and require a second heat cycle to 750°C/2 hours before cooling to room temperature to form martensite. Technical Data Sheet304 stainless steel in most media. In general, the corrosion resistance of ATI 17-4 alloy is superior to that of the hardenable 400 series stainless steels. As with other precipitation hardening stainless steels, ATI 17-4 precipitation hardening stainless steel is more susceptible to stress corrosion cracking at peak strength. Top 3 Benefits of MIM 17-4 PH Stainless Steel in Firearms
Type 17-4 PH stainless steel is the most widely used of all of the precipitation-hardening stainless steels. It includes the addition of Chromium, Nickel, Copper and Niobium, making it a truly martensitic microstructure. It is further strengthened by a low temperature treatment which precipitates a copper containing phase in the alloy. In comparison to other PH alloys, 17-4 PH requires a simple heat 17-4 PH Steel AK SteelAK STEEL 17-4 PH® STAINLESS STEEL is the most widely used of all the precipitation-hardening stainless steels. Its valuable combination of properties gives designers opportunities to add reliability to their products while simplifying fabrication and often reducing costs. This valuable alloy is widely used in the aerospace, chemical,