PCE value (Segar cone) of Superduty refractories is more than 33, which is equivalent to a temperature of ____________ °C? March 8, 2019 – by admin PCE value (Segar cone) of Superduty refractories is more than 33, which is equivalent to a temperature of ____________ °C? A. 1520 B. 1630 C. 1670D. 1730