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Analysis of tempering effect of stainless steel pipe
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PostPost subject: Analysis of tempering effect of stainless steel pipe
Posted: Thu Feb 08, 2018 7:25 am
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In order to solve the processing hardening caused by cold processing of stainless steel pipe, it is necessary to reheat treatment in the process of forming. Therefore, whether to carry out the fire treatment has a very direct impact on the processing technology and the cost.
We all know that when the stainless steel material is near or less than room temperature deformation, it will harden and increase the strength and hardness of the stainless steel material. In essence, not all stainless steel pipes can be expected to be processed. For example ferritic 400 series stainless steel pipe, in the cold processing of it, will only produce a small amount of deformation, otherwise it will produce sudden destruction or even cracking. For example, 430 and 446 stainless steel pipes themselves have notch sensitivity, so their supply status needs to be marked as annealing. When it is necessary to process the process, it is necessary to conduct the tempering process.
Hardened martensite stainless steel is also supplied in annealing status, otherwise such stainless steel is usually reinforced or reinforced with quenching. However, austenitic stainless steel pipes can be supplied in a larger range of cold-processing hardness. The following is a list of mechanical properties related to the austenitic stainless steel pipes. Not all sizes and steel austenitic stainless steel pipes can be processed after tempering.
Stainless steel, such as 201, 202, 301, 302 and 304, is very suitable for cold drawing. Stainless steel, with high content of alloy elements and low hardening rate of cold processing, is not widely used to produce tempering products that are more than 1/2 cold. 305, 316, 317 and 310 stainless steel belong to the latter category. With the increase of nickel content, the trend of hardening of stainless steel materials will decrease.
It is important to note that some non-standard chrome-manganese austenitic stainless steel pipes also greatly increase the processing range of cold drawn steel pipes. It can be seen that the rule of small size stainless steel pipe may change when machining production. When production is higher than annealing hardness of small size stainless steel pipes, especially if you want to have 1/2 cold and hard energy, you need to consider the use of equipment that specializes in small stainless steel pipe.
Because of the utilization of raw materials, the rate of success is a must, and the above basic knowledge is beneficial to improve the yield of stainless steel pipes. In the process of cold-drawing stainless steel pipe, it must consider the limitation of machining dimension to the production of stainless steel pipe. Because of price limitation, lubricant performance and the intrinsic factor of the above analysis, only certain sizes of stainless steel pipes can be cold-drawn and processed under various tempering conditions.
Source: China Stainless Steel Pipe Manufacturer - Yaang Pipe Industry Co., Limited (www.yaang.com)
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