Metal heat treatment is a technological process that alters the internal structure and physical and mechanical properties of metals (hardness, strength, ductility) through controlled heating, holding at a specified temperature for a defined period, and subsequent cooling in an aqueous solution, technical oil, or air according to a specific regime. Heat treatment is used to impart the required performance characteristics to metals and alloys without changing their chemical composition.
The manufacturing company New Standard offers metal heat treatment services in accordance with technical documentation requirements and the conditions of further product operation.
Metal Heat Treatment | Classification
- Annealing — heating, holding, and slow cooling of metal workpieces to relieve internal stresses, increase ductility, and improve machinability.
- Quenching (hardening) — heating followed by rapid cooling in water or oil to increase hardness and strength; usually accompanied by increased brittleness.
- Normalizing — intensive heating followed by air cooling to refine the internal structure and prepare the material for further processing.
- Tempering — reheating hardened steel to temperatures below the hardening temperature to reduce brittleness and increase toughness while maintaining hardness.
- Carburizing — enriching the surface layer with carbon followed by quenching to create a hard surface and a tough core.
- Nitriding — enriching the surface with nitrogen to increase hardness and corrosion resistance.
- Cyaniding and boriding — saturating the surface layer with cyanides and boron to modify physical and mechanical properties.
- Thermomechanical treatment — a combination of plastic deformation and high-temperature heating.
- Induction hardening (high-frequency currents) — localized surface heating using induction equipment to strengthen the surface layer.
- Cryogenic treatment — processing workpieces at extremely low temperatures.
Parts Suitable for Metal Heat Treatment
Metal heat treatment is most commonly applied to products made of tool steels (drills, milling cutters, taps, knives, dies), components operating under high loads (gears, shafts, axles, levers, rollers), large structural elements (I-beams, angles, channels, reinforcement bars), fasteners (bolts, nuts, screws), stainless steel products, and abrasive wheels.
Heat treatment is carried out using specialized equipment—primarily various types of furnaces (chamber, vacuum, pit, conveyor, and salt bath furnaces), as well as induction heating systems. Induction equipment allows precise and localized heating of parts to a specified temperature. Cooling is performed in air or in quenching baths. Flexible heating elements with temperature control systems may also be used for localized tempering.
Metal Heat Treatment at New Standard
Company New Standard combines modern equipment, a professional approach, and strict quality control at every stage of work. We provide metal heat treatment services based on the customer’s drawings, sketches, and samples.