Precipitated hardening steel
The chemical components of precipitated hardening stainless steel generally do not exceed 18-8 chromium nickel austenite stainless steel chromium and nickel content, and the carbon content is low. Add a small amount of so-called hardening elements that make precipitated hardening, such as aluminum, titanium, niobium, copper, and copper, and copper and copper. Molybdenum and other. After the final formation is formed, after the time processing, an intermediary compound (such as Ni3AL, NI3TI, etc.) and some small amounts of carbides are precipitated to produce precipitation hardening. It has higher strength than ordinary Matinosteena stainless steel, better weldability, toughness, cold processing formability and corrosion resistance.
Precipitation hardening stainless steel is often used in nuclear power, aerospace and other industries, and its main feature is a type of stainless steel with ultra-high strength. Generally, it can be divided into three categories according to its structure: precipitation hardening martensitic stainless steel, precipitation hardening semi-austenitic stainless steel, and precipitation hardening austenitic stainless steel.
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