Stainless steel material properties of common bimetallic thermometer is as follows: SUS304: it has good corrosion resistance, heat resistance, low temperature strength and mechanical properties, good punching bending and other hot workability, no heat treatment hardening phenomenon, non-magnetic. SUS316: good corrosion resistance and high temperature strength, can be used in harsh conditions, strain hardening and non-magnetic. Adding Mo (SUS316L: steel 2 - 3%) Therefore, good corrosion resistance and high temperature strength; SUS316L carbon content is lower than SUS316, therefore, the resistance to intergranular corrosion resistance than SUS316; High temperature creep strength is high. Can be used in harsh conditions, strain hardening and nonmagnetic SUS321: Ti is added in the 304 steel, so the excellent intergranular corrosion resistance; Good high temperature strength and high temperature oxidation resistance; High cost, poor workability than SUS304.
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