Jinyu protection tubes can be used at temperatures up to 1250° C (2280° F) and are available in sizes from 26 to 260 mm (1.02-10.2 inch) outside diameter. APM and APMT tubes are suitable for use as, for example: Radiant tubes (radiation tubes) Thermocouple protection tubes Muffle tubes Atmosphere sampling tubes Gas injection tubes Burner nozzles User benefits include superior resistance to, for example, carburization, thermal shock, sagging and distortion. This is due to the materials' excellent mechanical properties and their capability of forming a cohesive oxide film that protects against corrosion and atmospheric attack. The lifetime of APMT and Kanthal APM tubes is often many times longer than that of NiCr-alloyed tubes. Add to Basket