Precipitation hardening stainless steels 17-4PH, 17-7PH, S17400, SUS631, and S630 These materials are all stainless steels with specific properties, each with its own unique properties and uses.
17-4PH, also known as S17400, is a precipitation hardening stainless steel.
17-4phInannealedYesGood plasticity, which can be strengthened by cold working and heat treatment17-4phYesHigh strength, good corrosion resistance and excellent welding properties17-4phThey are mainly used in high-strength structural parts and fasteners, corrosion-resistant components in the petroleum and chemical industries, and high-strength structural parts in the aerospace industry.
17-7PH, also known as S631, is also a precipitation hardening stainless steel. It has good corrosion resistance, strength and toughness, and is mainly used to make parts that need to meet both high strength and good plasticity, such as high-pressure pipes and valves in the petroleum industry, seat structures and brackets in aerospace, etc.
SUS631 is a precipitation-hardening stainless steel in the Japanese standard that has similar strength and corrosion resistance to 17-4PH and 17-7PH. Due to its good machinability and welding properties, SUS631 is widely used in high-pressure pipes and valves in shipbuilding, oil and gas industry, and high-strength structural parts in the aerospace field.
S630 is another precipitation-hardening stainless steel that has higher strength and corrosion resistance than 17-4PH and 17-7PH. Due to its excellent mechanical properties and corrosion resistance, S630 is mainly used in the manufacture of components that need to withstand high stress and corrosive environments, such as seawater pipes and valves in shipbuilding, high-pressure pipes and valves in the petroleum industry, etc.
These precipitation-hardened stainless steels have different properties and uses, and the choice of material depends on the specific application needs. In the design and manufacturing process, it needs to be optimized according to the properties of different materials to make the most of their advantages and meet the requirements of use. At the same time, the correct selection of these materials can also improve the safety and service life of the equipment and reduce maintenance costs. Engine