AISI 17-4PH | EN 1.4542
STAINLESS STEEL
AISI 17-4PH | EN 1.4542
Description
17-4PH stainless steel is a precipitation-hardening martensitic stainless steel alloy that contains 17% chromium, 4% nickel, and 3% copper. This steel is often referred to as "Type 630" due to its AISI designation. The addition of copper enhances the steel's resistance to corrosion and improves its mechanical properties. 17-4PH stainless steel is widely used in applications that require high strength, corrosion resistance, and good ductility.
17-4PH is a popular stainless steel grade in Aerospace and Nuclear sectors due to its excellent combination of good corrosion resistance and high strength. It is a widely-used martensitic precipitation-hardening stainless steel with a high concentration of chromium and nickel. It has many favorable properties, including excellent strength, good corrosion resistance, and excellent mechanical properties up to 316 °C. It is similar to 17-7PH but has lower Nickel content. It is reasonable to expect specifications in these standards to be similar but not necessarily identical to those given in this data sheet.
Applications of 17-4PH
- Nuclear Reactor Vessels
- Nuclear Fuel Rods
- Aircraft and gas turbines
- Aerospace: Aircraft Landing Gear, Helicopter Rotor Hubs, Missile Components, etc
- Defense: Gun Barrels, Ammunition Casings, Armor Plates, etc
- Oil field
- Chemical process components
- Paper mill
- Fasteners
- Gears
- Castings
- Fittings
- Marine Parts: Propeller Shafts, Sailboat Self Steering Systems, etc
- Nuclear Waste Casks
- Turbine Blades
- Valves