I Squared R Element Co., Inc. is a manufacturer of silicon carbide heating elements, trade name Starbar® and molybdenum disilicide heating elements, trade name Moly-D®.The Starbar heating element has a maximum use temperature of 3,100ºF (1,700ºC). The Moly-D element can operate up to an element temperature of 3,362ºF (1,850ºC).I Squared R is known for both its consistent high-quality elements and high level of customer satisfaction.