Parameter Optimization and Prediction Model of Induction Heating for Large-Diameter Pipe

Table 1

The thermal properties of X80.

Temperature; (°C)	Relative Permeability μ	Resistivity ρ (10^−6Ω·m)	Specific Heat (J/Kg·°C)	Thermal Conductivity (W/m·°C)	Density; ρ(Kg/m^3)	Emissivity (J/m^2sK^4)
0	200	0.195	450	47.4	7896	1
25	198	0.202	450	46.2	7896	0.998
100	194	0.251	479	43.7	7870	0.996
200	186	0.336	520	40.3	7849	0.992
300	179	0.434	564	38	7824	0.987
400	167	0.539	612	35.9	7796	0.983
500	156	0.659	668	33.8	7769	0.978
600	139	0.792	785	31.7	7744	0.978
700	93	0.947	936	28.4	7716	0.879
800	1	1.073	848	25.9	7691	0/648
900	1	1.164	655	23.5	7665	0.594
1000	1	1.199	620	23.9	7639	0.535