天津市北辰区中关村可信产业园B9-1 Address: B9-1, Trustworthy Industrial Park, Zhongguancun, Beichen District, Tianjin
15522233345 Mobile: 15522233345
许宗涛 Contact: Xu Zongtao
High pressure pipe 7
High-pressure alloy pipe is a kind of pipe that can withstand large pressure when transporting liquid or gas. Its type can also be divided into steel pipe, stainless steel pipe, copper pipe, etc., and one of its special characteristics is that it will be magnetic. Understand.
There are many types of high-pressure alloy tubes, which can be divided into several types according to the arrangement structure at room temperature: First, austenite type: such as 304, 321, 316, 310, etc .; second martensite or ferrite type: such as 430, 420, 410, etc .; the austenite type is non-magnetic or weakly magnetic, and the martensite ferrite is magnetic. The high-pressure alloy tubes generally used as decorative tube sheets are mostly austenitic 304 raw materials. Generally, they are non-magnetic or weakly magnetic. However, they may also be magnetic due to the formation of chemical components during exercise or different processing conditions. Why is it considered to be fake or unqualified?
As mentioned above, austenite is non-magnetic or weakly magnetic, while martensite or ferrite is magnetic. Because of segregation or heat treatment during exercise, a small amount of martensite in austenite 304 high-pressure alloy tube will be formed. Or ferrite arrangement. In this way, the high-pressure alloy tube will have weak magnetism.