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Stainless steel tube at low temperature performance is what
Oct 25, 2017

1. Low temperature embrittlement of stainless steel tube --- In low temperature environment, deformation energy is small. In low temperature environment, the elongation and the decrease of the shrinkage of the section are called low temperature embrittlement. And more in the ferrite series of body-centered cubic tissue.

2. Stainless steel tube low temperature processing --- martensitic stainless steel from the austenitizing temperature quenching and then cooled to a very low temperature to promote the martensite to produce quenching method. Suitable for easy production of residual austenitic stainless steel.

Stainless steel tube at low temperatures, resistance, linear expansion coefficient, thermal conductivity, mass hot melt and magnetic will change greatly. Resistance, linear expansion coefficient decreases at low temperature; thermal conductivity, mass heat capacity decreases drastically at low temperature; Young's modulus (longitudinal modulus) increases at the same time as the temperature decreases. Since the austenitic stainless steel tube has a Ms point (martensitic starting temperature or martensite formation temperature) of a low temperature (Subzreo temperature), martensite can be generated when it is kept below the Ms point. At low temperatures, the formation of martensite, so that the nominal series of stainless steel steel SUS304 (18Cr-8Ni) at room temperature is non-magnetic, and in low temperature environment into a magnetic.


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