17-4PH, 17-7PH
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What are the differences between 17-4PH and 17-7PH materials? How to choose?
17-4PH, 17-Cr/4-Ni, martensitic precipitation-hardening stainless steel. High strength and hardness, fatigue resistance, and good corrosion resistance; suitable for use in compressor shafts and pump shafts in humid hydrogen sulfide environments (medium temperature < 300°C) ； 17-7PH, 17-Cr/7-Ni, austenite-martensite precipitation-hardening stainless steel, also known as phase-controlled stainless steel, has an unstable austenitic structure after solution treatment, and exhibits good plasticity, toughness, and workability. It is commonly used in the manufacture of springs.
17-7PH is too hard, with a high yield strength and high hardness; it is not suitable for use in corrosive environments
Shanghai Dengwei International specializes in high-end stainless steels such as duplex stainless steel, Hastelloy, superalloys, titanium alloys, Inconel, and Monel, as well as nickel-based alloys. The products are available in various forms including thin, medium, and thick plates, round bars, strips, profiles, coiled bars, flanges, elbows, tees, and more. 10,000 tons in stock, logistics and delivery services, direct sales from the manufacturer, original factory warranty certificates provided, on-site spectrometers, etc. 15 years of operational experience, a leading enterprise with an excellent reputation in the industry, ISO9001:2015 quality certification. Contact number: 18049996841, Manager Ye