Hardened and Tempered Steel Strips

hardened and tempered steel strips

Hardened and Tempered Steel Strips

Hardened and tempered steel strips are treated to achieve an optimal combination of toughness and strength. The strips are sheared with low burrs and have a grey or bright polished surface finish.

During tempering the strip material is heated to temperatures above the GSK line drawing in the iron-carbon diagram, left there for a dwell time and then put into a cooling bath with a slightly higher rate of cooling than critical.


Hardened and tempered steel strips are heat treated to achieve an optimal combination of toughness and tensile strength. These strips are manufactured from medium and high carbon grades of cold rolled steel which have been heated in continuous lines to a specific temperature range. The resulting product is a high quality, precision blanking steel that offers excellent spring properties.

The hardening process involves heating the strip material to a high temperature and then rapidly cooling it, which makes it stronger and more resistant to wear. Tempering, on the other hand, involves heating the hardened strip to a lower temperature and then slowly cooling it, which increases its toughness.

It is important to temper the steel strip after it has been hardened. This will ensure that the transformation into martensite is complete and that the final toughness of the strip is as high as possible. If the steel is not tempered within a reasonable time after hardening, it will lose its desired properties and become brittle. Also, it is crucial to temper the strip at a temperature that is suitable for its thickness.

Tensile strength

Hardened and tempered spring steel strips have a high degree of toughness and excellent spring properties. They are ideal for wood cutting saws, industrial knives and automobile components. They are also suitable for use as flapper valves and horn diaphragms.

Hardening is a heat treatment process that involves heating the steel to a critical temperature, holding it there for a certain period of time, and then cooling it quickly. This produces a strong and hard material called martensite.

Tempering is the next step in the process of heat treating steel. This step reduces the brittleness of the hardened martensite and improves toughness. It also allows the metal to be shaped.

The tempering process takes place in a controlled environment and is designed to produce the desired properties. hardened and tempered steel strips It is usually performed after the annealing and quenching stages. It is important to temper the steel within a reasonable time after hardening, preferably before it cools completely. This will ensure that the tensile strength is uniform throughout the strip. It will also help to avoid waviness in the strip.


Steel is a metal that can be hardened and tempered to improve its toughness. Toughness is an important property for many applications, especially when the material is used in vehicles or machinery. It is also important for tools, such as pliers and wrenches, that must withstand pressure and cutting forces. The toughness of hardened and tempered steel strip is determined by the heat treatment process it undergoes.

The invention relates to a method for the continuous hardening and tempering of steel strips. During tempering, the strip material is heated up to the required tempering temperature and then quenched. The hardening time of the strip material varies along the width of the steel strip. The temperature zone in which the tempering temperature-causing zone (28) runs through last is matched in length to the strip passage speed in such a way that the strip material only reaches the required tempering temperature shortly before leaving it.

The result is a softer, yet still strong and ductile material that is able to withstand wear, abrasion, and impact. In addition, the surface of this steel is able to resist corrosion and other environmental effects.

Impact strength

The impact resistance of steel strips is a result of many factors. The heat treatment, surface condition and thickness of the strip all affect its ability to withstand impact forces. The tensile strength and toughness of the steel strip also contribute to its impact resistance. Strips with a fine and uniform microstructure tend to have higher impact strengths than those with a coarser microstructure.

Our Hardened and Tempered Spring Steel Strips are used in a wide variety of applications such as automobile clutches, Annealed Steel Strip clock springs, doctor blades, and industrial knives. They have excellent ductility and shock resistance, and are available with a choice of different surface finishes including grey (unpolished), blued, or bright polished.

A continuous production line is used to heat the steel strips to high temperatures, which cause them to harden rapidly. Then, they are cooled to a lower temperature and tempered to increase their toughness. This process also increases the ductility and shock resistance of the strips. Tempering also changes the microstructure of the steel. During tempering, the phase composition of the metal changes from martensite to ferritic with cementite.

Corrosion resistance

The corrosion resistance of hardened and tempered steel strip can vary depending on the alloy type. For example, stainless steel is more resistant to corrosion than carbon steel. This is because the chromium in stainless steel is more bonded to the metal. Therefore, it is more difficult for the chromium to disperse.

During the tempering process, the steel strip is heated at different temperatures to obtain a hardened core and a soft surface. The tempered surface can be rolled to achieve the desired shape and size of the product. This allows the strip to be used for a variety of applications.

In addition, the sheared edges are rounded or dressed to improve the surface of the strip. This helps reduce the friction between the strip and the workpiece. This also allows the strip to be cut easily and reduces the amount of heat that is transferred during cutting.

The tempered surface of the strip has good strength and ductility and is easy to form into the desired shape and length. This is important for many applications, including manufacturing bandsaws.

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