SLAG CAP

A sampling device for molten metals includes a carrier tube having an immersion end and a sample chamber arranged in the carrier tube. The sample chamber has an inflow conduit. The inflow conduit has an inflow opening inside the sampling chamber and an outer open end which is surrounded by a protective cap. The protective cap has a metallic body with an inner side directed toward the inflow conduit and an outer side. A layer of a material is arranged at the outer side of the metallic body. The material comprises a compound which decomposes and forms water vapor if immersed in molten steel, molten iron or molten slag.