The same steel can perform very differently depending on how it is heat treated. Annealing softens it, quenching increases hardness, tempering improves toughness, and carburizing strengthens the surface. With so many processes involved, it is easy to mix them up.<\/p>\n
SR MFG has put together a practical reference table covering the key points of annealing, normalizing, quenching, tempering, quenching and tempering, aging, thermochemical treatment, and black oxide treatment. It clearly summarizes how each process works, what it is intended to achieve, and what engineers should consider when defining heat treatment callouts on manufacturing drawings<\/strong><\/a>.<\/p>\n <\/p>\n