What is the meaning of heat number mentioned on steel plate?

Answer 1

The heat number on a steel plate is a unique identification number that indicates the specific batch of steel from which the plate was produced. It is important for traceability and quality control purposes, as it allows manufacturers to track the materials used in the production process. The heat number provides information about the chemical composition, mechanical properties, and production date of the steel plate, ensuring consistency and reliability in its performance.

Answer 2

Definition: An identifying number assigned to the product of one melting in an electric arc furnace: e.g. 19345. Sometimes, but not universally, the first digit indicates the furnace number; the second digit indicates the year in which the heat was melted. The last three (and sometimes four) digits show that this was the 345th heat melted in No. 1 furnace during 1989.