All refractory anchoring systems are produced in SS 304, SS 310, Alloy 601 and other heat resistant alloys.CASTABLE Refractory Anchors, Castable refractory anchors come in various shapes and sizes, but they are generally V & Y type construction anchors to hold monolithic refractory in the furnaces, boilers and other applications. These are of Cast or Fabricated from Wire rods or strips.