APPLICATION:
17-4 PH is a martensitic precipitation-hardening stainless steel that provides an outstanding combination of high strength, good corrosion resistance, good mechanical properties at temperatures up to 600°F (316C), good strength in both base metal and welds, and short-time, low-temperature heat treatments that minimize warpage and scaling. Application for 17-4 PH include chemical processing equipment, aircraft components, continuous extrusion equipment, tubular structures, duplication machine components, pressure vessels, small bellows, and diaphragm assemblies. 17-4 PH is an outstanding choice for applications requiring high strength and hardness, as well as corrosion resistance, and is more cost effective than many high nickel non-ferrous alloys.17/4 PH plate under 4 " can be welded without preheating but interpass up to 300f are commonly used.