ASTM B163 N4 Alloy 201 / UNS N02201 Nickel Alloy Seamless / Welded Pipe With AP Surface
Nickel 201 is the low-carbon version of Nickel 200. Because of its low carbon content, Nickel 201 is not subject to embrittlement by intergranularly precipitated carbon or graphite when exposed to temperatures of 315 to 760℃ for prolonged time if carbonaceous materials are not in contact with it. Therefore, it is a substitute for Nickel 200 in Applications above 315℃. However it does suffer from intergranular embrittlement by sulfur compounds at temperatures above 315℃. Sodium peroxide can be used to change them to sulfates to counteract their effect.
Electronic components, caustic evaporators, combustion boats and plater bars.
Nickel 201 Chemical composition
Nickel 201 Physical properties
Nickel Alloy Tube Test :
1 . NTD(Ultrasonic test, Eddy Current test)
2 . Mechanical Test(Tension Test, Flaring Test, Flattening Test, Hardness Test, Hydraulic test)
3 . Metal Test(Metallographic Analysis, Impact Test-High/low temperature)
4 . Chemical Analysis(Photoelectric Emission Spectroscopic)