Soar metering nozzle is mainly an inlaid quick-change metering nozzle. The main component of this nozzle core is zirconium, which has the characteristics of high refractoriness, good thermal shock stability, erosion resistance, corrosion resistance, small diameter expansion and long service life. With the help of quick-change system, multiple metering nozzle could be used along with the long-service life tundish linings and multiple nozzles could be replaced in one casting process.