Austenitic stainless steel
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202 stainless steel
Public Time:2011年10月18日 | Sort:Austenitic stainless steel | Hits:1644

202 stainless steel




Respective series
202 stainless steel is 200 series stainless steel one. 200 series stainless steel is a low-Ni high-manganese steel, nickel content is generally below 4%, 8% manganese content, the Ni-based stainless steel.
Introduction
[1] 202 stainless steel is widely used in building decoration, municipal engineering, highway guardrail, hotel facilities, shopping malls, glass handrails, public facilities and other places. Tube by the high-precision automation equipment, erosion by melting their own welding, rolled and shaped, in the absence of any metal filler, the filled gas (inner and outer tubes) welded together, for the TIG welding process, and solid solution for online eddy current flaw detection.
Chemical composition
Chemical composition: 1Cr18Mn8Ni5N C: ≤ 0.15
Si: ≤ 1
Mn: 7.5-10
P: ≤ 0.06
S: ≤ 0.03
Ni: 4-6
Cr: 17-19
Mo: No
Cu: no
N: ≤ 0.25
Other: None
Typical use
Most of the requirements for long-term use of the original appearance of the building. To be used in determining the type of stainless steel, the main consideration is the aesthetic standards required, the location of atmospheric corrosion and clean-up system should be adopted. However, a growing number of other applications but not for structural integrity or permeability. For example, the roof and side walls of industrial buildings. In these applications, the owner of the construction costs may be more important than the aesthetic, the surface can not very clean. In a dry indoor environment 304 results have been very good. However, in rural and urban areas in order to maintain its appearance in the outdoors, they need frequent cleaning. In heavily polluted industrial areas and coastal areas, the surface will be very dirty, and even rust. But to get the outdoor environment, the aesthetic effect, it requires the use of nickel-containing stainless steel. Therefore, the 304 stainless steel is widely used in curtain wall, side walls, roofs and other construction purposes, but in severe erosion of the industrial or marine atmosphere, preferably 316 stainless steel. Stainless steel sliding door now, it has been fully aware of the use of stainless steel in structural applications superiority. There are several design criteria, including the 304 and 316 stainless steel. Because the "Duplex" 2205 stainless steel has good resistance to atmospheric corrosion and high tensile strength and proof strength blend, so the European guidelines also include the steel. Shape of the product in fact, all stainless steel is the standard shape and size of metal production, and there are many special shapes. The most commonly used product is made of sheet and strip, and plate production with special products, for example, producing hot-rolled structural steel and structural steel extrusion. And there are round, oval, square, rectangular and hexagonal welded or seamless steel tubes and other forms of products, including profiles, rods, wire and castings.
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