Stainless steel Main imports of galvanized steel wire 630 Table 4-1 to Table 4-5 lists the martensitic stainless steels, ferritic stainless steels, austenitic stainless steel physics, precipitation hardening stainless steel and duplex stainless steel grades of performance. Such as density, melting point, specific heat capacity parameters, thermal conductivity, thermal expansion coefficient, electrical resistivity, magnetic permeability and the longitudinal elastic coefficient. Correlation between physical properties and temperature (1) the specific heat capacity with temperature change to change the heat capacity will be, but the temperature change in the process of a metal structure in the event of a phase change or precipitation, the heat capacity will be a significant change in ratio. (2) the thermal conductivity below 600 ℃, the thermal conductivity of stainless steel is substantially within 10 ~ 30W / (m · ℃) range, as the temperature of the thermal conductivity increased with increasing trend. At 100 ℃, the thermal conductivity of stainless steel from large to small order 1Cr17,00Cr12,2 Cr 25N, 0 Cr 18Ni11Ti, 0 Cr 18 Ni 9,0 Cr 17 Ni 12Mο2,2 Cr 25Ni20.500 ℃ when the thermal conductivity by a large to a small order of 1 Cr 13,1 Cr 17,2 Cr 25N, 0 Cr 17Ni12Mο2,0 Cr 18Ni9Ti and 2 Cr 25Ni20. Thermal conductivity of austenitic stainless steel is slightly lower than the other, compared with ordinary carbon steel, 100 ℃, the thermal conductivity of austenitic stainless steel is about its quarter. (3) linear expansion coefficient in the range of 100-900 ℃, linear expansion coefficient of various types of stainless steel grades of the basic 10ˉ6 ~ 130 * 10ˉ6 ℃ ˉ1, and with increasing temperature showed an increasing trend. For austenitic stainless steel, 80k less shrinkage in size (relative to 273K) is slightly different. Nickel content has a certain influence on shrinkage. (4) has a resistivity at low temperature differences between the various grades of resistivity to increase. Alloying elements have a greater impact on the size of the resistivity. (5) at low magnetic, austenitic stainless steel are different materials with different effects on the quality of the load magnetic susceptibility. Different alloying elements are also differences. There is no difference in the permeability of different brands. (6) an elastic modulus at a low temperature, the magnetic transition of austenitic stainless steel to produce than the corresponding Poisson extremum.