Quench and tempering steels

Several of our hardenable steels are specifically designed for case hardening. Through a carefully balanced process of heat treatment and cooling, these steels can achieve a unique combination of hardness and toughness. The result is a steel that not only resists wear and tear but also retains its mechanical properties and strength over time. Whether you are an experienced buyer in the industry or just curious about the technical properties, you can read more about our case hardening steels here.

It is hardened steel

Usually, steel needs an extra process - tempering - to get the right balance between hardness and strength. The aim is to make the material stronger and more durable.

One of these processes is quenching and tempering. This involves first making the steel hard by rapidly cooling it in water or oil when it is hot, around 900°C. Then the steel is tempered by reheating it to a certain temperature. This makes the hard steel a little softer, tougher and more durable - bainitic steel.

Calling on steel

Steel is tempered to increase its toughness. After hardening to a martensitic structure, tempering is carried out by heating to temperatures between 150 and 650 ºC. It should be carried out as close to hardening as possible. This should be done as close to hardening as possible. Some steels risk tensile stresses if cooled even more after hardening. Untempered martensite is brittle and can therefore crack under tensile stresses. The methods of tempering differ depending on the properties of the steel. For example, if you want the material to be coloured, tempering is done in shielding gas - this is very common.

Read more about martensite steel

Properties of quenching and tempering steels

Tempered steel is characterised by two main properties:

High strength. Tempered steel is designed to withstand high stresses and strains. Its superior strength makes it suitable for use in applications where strength and resilience are crucial, such as in..:

  • Tools
  • Machines
  • Vehicle
  • Constructions

Good mouldability. Despite its strength, tempered steel can still be machined and shaped with relative ease. This makes it a versatile material that can be adapted to different shapes and dimensions. The steel can be re-hardened to regain its mechanical properties. Quenched and tempered steel is normally supplied in the quenched and tempered state, QT. Machining/cutting operations normally work well in the quenched and tempered condition.

Get tempered steel from Livallco

With us at Livallco you will always find the knowledge and expertise you need. Do not hesitate to contact us if you have any questions - we are ready to answer all your questions about steel!

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Mechanical steel

These steels also belong to the group formerly known as machine steels.

Machine steel is designed to be easily machined in various processes such as cutting, turning, milling and drilling. Nowadays, most steels are designed to improve cutting and machinability. Often alloying elements such as sulphur are added to improve cutability. Machine steel also usually has high strength, meaning it can withstand loads and resist deformation during use. They are also known for their durability and ability to resist wear, which is important in mechanical engineering applications where parts are subject to abrasion and friction.

Machine steel is used in a variety of mechanical engineering applications, including the manufacture of shafts, gears, shock absorbers, piston rods and other critical components of machinery and equipment.