Parameters

Temperature range

Temperature range

750˚C - 850˚C

900˚C - 1300˚C

$C_1\left(\text{MPa}\right)$

130

80

$C_2\left(\text{MPa}\right)$

90.588

14.036

$C_3$

50.403 × 10⁻⁴

40.680 × 10⁻⁴

$C_4$

−13.752 × 10⁻⁴

28.506 × 10⁻⁵

$C_5$

14.982 × 10⁻²

85.467 × 10⁻³

$C_6$

16.142 × 10⁻⁶

34.1295 × 10⁻⁵

n

−20.447 × 10⁻²

−41.035 × 10⁻²