With stainless steel processing professional services
Stainless steel parts processing products as an important material gradually been paying attention, though stainless steel processing have insufficient centuries. Earlier the British Brearley in 1931 has been reported in the stainless steel parts processing.
Carbon content of 0.4 percent of steel containing 9% when a 16% chromium, with good corrosion resistance. This may be the first stainless steel. Machining succession, Germany Strau88 and Ma, r and others through the study pointed out: steel containing sufficient amounts of chromium and nickel (Ni) and acid has antioxidant effects. 1917 and 1918, according to research Chevenard France, production of chromium ro% to 15%, nickel 20% a 4O% of special steel. In the meantime, the United States has the corrosion resistance of chromium steel were studied and promoting the use of chromium stainless steel.
Machining these are our currently known ferritic stainless steel, pre-achievement of martensitic stainless steel and austenitic stainless steel. In the use of stainless steel, the machining of people gradually feel inadequate. Good corrosion resistance of austenitic stainless steel parts, but lower strength, not by heat treatment to adjust the intensity, so machining is not suitable for use with high strength requirements of stainless steel parts. The martensitic stainless steel parts processing, although performance can be adjusted by means of heat treatment methods to ensure high mechanical strength, but somewhat less corrosion resistance, and thus is limited in application.
Thus, machining gradually developed both have good corrosion resistance, mechanical processing but also to adjust the mechanical properties by heat treatment of precipitation hardening stainless steel parts processing. With the expansion of the scope of application of stainless steel parts and components in some medium due to uneven local corrosion and stress corrosion cracking increased accident occurred, causing 'the scientists' attention, and developed a new type of stainless steel, which has Both duplex and austenitic ferritic phase stainless steel. After nearly a century of development, has led to a ferritic stainless steel having, martensitic, austenitic, precipitation-hardening lines and ferritic-austenitic (duplex stainless steel system) and other five series, many varieties of steel materials and occupies an important position in the steel world.
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