Higher carbon steels that contain carbide-forming elements such as chromium, molybdenum, tungsten, or vanadium require more soaking time at the austenitizing temperature since the complex carbides are relatively slow to dissolve. If the temperature is too low, there may be incomplete solution of carbides and the steel may still contain undissolved ferrite grains that are not beneficial in a hardened tool steel. If the temperature is too high, large grains may form and cause cracking during heat treatment, resulting in failure of the part. Most steel producers publish data sheets containing correct austenitizing temperatures for various alloys.