Heat treatment—Tempering

Tempering is a heat treatment process that improves the mechanical properties (typically ductility and hardness) and relieves internal stresses of a steel. Tempering is usually performed after hardening, to reduce some of the excess hardness, and is done by heating the metal to some temperature below the critical point for a certain period of time, then allowing it to cool in still air. The exact temperature determines the amount of hardness removed, and depends on both the specific composition of the alloy and on the desired properties in the finished product.

What are the Benefits of Tempering?
1). It changes the physical properties of the material that help in other manufacturing steps like cold forging, welding, and machining.
2). Tempering helps to relieve stress making the metal easier to weld or machine.
3). Increases strength while making the material more flexible and ductile.

Guokun Casting, of Baoding Hebei is an ISO 9001-2008 registered iron and steel foundry & supplier of high quality carbon steel, alloy steel, stainless steel, wear resistant steel castings, gray iron casting, ductile iron casting, protype castings and machhined castings used in Power, Mining, Transporation, Agricultural, Automobile, bus and truck parts, valvesoil & Gas steel castings, Pipe Fittings and Gear Industry.

With a montly capacity of 10,000kgs and with more than 15 years of experience ensure the short delivery and the highest valued iron & steel casting parts.