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Credibility ,How to identify the authenticity of stainless steel pipe?
There are four ways to identify the authenticity of stainless steel pipe.
One, Magnetic test is the most simple way to distinguish between annealed austenitic stainless steel pipe and ferrite stainless steel pipe. Non magnetic steel is austenitic stainless steel, but the high pressure after cold working with mild magnetic; and pure chromium steels and low alloy steels is strong magnetic steel.
Two, One of the remarkable characteristics of the stainless steel pipe is that the corrosion resistance of concentrated nitric acid and dilute nitric acid is inherent. This property makes it easy to distinguish from most other metals or alloys. However, the high carbon type 420 and 440 steel in the nitric acid point test is slightly affected by corrosion, non-ferrous metals encountered when concentrated nitric acid will be corroded. And dilute nitric acid has strong corrosive to carbon steel.Tel No:+86-18267732328 / Email:[email protected]
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Yaang Pipe Industry Co., Ltd. is an international supplier of piping solutions for flange, butt welding fittings, socket welding fittings and threaded fittings. Our products are widely used in different industrial fields, including oil and gas, chemical industry, petrochemical industry, power plant, pulp and paper industry, environmental and water conservancy engineering, engineering projects, etc.