Excuse me, brass, stainless steel, aluminum, how many were the thermal conductivity of carbon steel tubes urgently?!
Stainless steel heat conduction coefficient from big to small in the order of 1Cr17, 00Cr12, 25N, Cr 2 Cr 0 18Ni11Ti, 0 Cr 18 Ni 9, 0 Cr 17 Ni / 12M 2, Cr 225Ni20.500 C heat conduction coefficient from big to small order of 1 Cr 13, 1 Cr 17, 2 Cr 25N, 0 Cr, 2 17Ni12M / 0 Cr 18Ni9Ti and 2 Cr 25Ni20. austenitic stainless steel thermal conductivity is slightly lower than other stainless steel, and compared to ordinary carbon steel, at 100 degrees, austenitic stainless steel thermal conductivity of about 1/4C. aluminium tube
A. copper tubeCopper tube thermal conductivity, lambda =379.14W/ (M. DEG C)It has a thick wallB. stainless steel pipeThe thermal conductivity of various stainless steels is basically in the range of 10~30W/ (M DEG C) below 600 DEG C, and the thermal conductivity increases with the increase of temperature at 100 degrees centigrade,
Thermal conductivity of aluminium tube, lambda =237W/ (M. DEG C);D. carbon steel tube1% carbon is 29,0.5%, carbon is 31, units are GB units W/ (M. degrees Celsius)