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Precipitation Hardening
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Precipitation hardening a heat-treatment process with two steps: solution treating and aging. In a solution treating anneal process, an alloy is heated to dissolve alloying elements and cooled rapidly to maintain the alloying elements in solution. After forming or machining operations, the alloy can be heated to an intermediate temperature to age or precipitation-harden the metal. Ae second phase is precipitated in the aging process, resulting in strain hardening of the lattice. Based on their final microstructures after treatment, precipitation hardening steels are divided into three types: martensitic, semi-austentic and austenitic. Products & Services
Heat treating services perform thermal treatments to modify the properties of metals and metal alloys. Common processes include annealing, austempering, case hardening, conventional hardening, homogenizing, hot isostatic pressing (HIP), martempering, normalizing, precipitation hardening, shot peening, solution treating, spheroidizing, stabilizing, and stress relieving.
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Ferrous metals and alloys are based on iron and include carbon steels, alloy steels, stainless steels, cast iron, cast steel, maraging steel, and specialty or proprietary iron-based alloys.
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Learn more about Ferrous Metals and Iron Alloys
Stainless steel alloys are austenitic, ferritic, martensitic, precipitation hardened (PH), and duplex metal materials that are available in a wide variety of grades, shapes, and sizes.
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Precipitation systems promote the phenomenon that occurs when a substance held in solution passes out of solution into a solid form.
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Tool steels are wear resistant ferrous alloys based on iron and carbon with high levels of alloying elements such as chromium, molybdenum, tungsten and vanadium.
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Topics of Interest
Solution treating is the first phase in precipitation hardening, a two-step process that ends with aging. In a solution treating anneal process, an alloy is heated to a point to dissolve alloying...
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Stainless steels are highly corrosion resistant, ferrous alloys that contain chromium and/or nickel additions. There are three basic types of products: austenitic stainless steels, ferritic and...
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This specification was approved by the assistant Administrator Office of Federal Supply and Services, General Services Administration, for the use of all Federal agencies 1.1 Scope. This specification...
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MATERIALS
Table 1: Standard Steel Classification
Main Group
Content
Comments
Carbon Steels
When maximum content of the main elements do not exceed the following:...
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7.7 STAINLESS STEEL
The requirements for stainless steels have aesthetic (colour and shine) and technical reasons and, therefore, are broader compared to low alloyed structural steels. They are:...
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