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types of steel for quenching and tempering

Types of steel for quenching and tempering

The steels in the quenching and tempering range differ in chemical composition and, consequently, in terms of their properties such as the degree of hardenability through quenching and mechanical strength.

40CrMnMoS8.6

This alloy, identified among tool steels, is suitable for cold working. 40CrMnMoS8.6 steel has characteristics such as high ability to be smoothed and excellent possibility to be polished. It is used, in particular, for the construction of bending tools and for the processing of crystalline plastic tools.

W1.2312

This quenched and tempered steel, designed for the plastic mould industry, has excellent machinability characteristics, thanks to the percentage of sulphur added to this alloy. Compared with W1.2311 steel, type W1.2312, when subjected to machining with machine tools, has a milling speed with an increase of 30% and a drilling speed with an increase of 300%. A limit of this steel however is that it is not easily polished.
The steels of the quenching and tempering range differ in chemical composition.
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40CrMnMo7

This steel exhibits excellent performance when subjected to photoetching, polishing and electro-erosion. It is furthermore suitable for nitriding treatments. 40CrMnMo7 steel was also created for the mould industry, specifically for large ones, used in the automotive and food sectors. Among other applications, there is also rubber moulding and PVC extrusion.This steel can be worked both hot (up to 400°) and cold and has remarkable performances in terms of possibility of hardening through quenching (on small components), forging and machining with machine tools. It is suitable for nitriding treatment.

42CrMo4

This steel can be worked both hot (up to 400°) and cold and has remarkable performances in terms of possibility of hardening through quenching (on small components), forging and machining with machine tools. It is suitable for nitriding treatment. 42CrMo4 steel is mainly used as construction steel, as it lends itself to the construction of parts and components that are subjected to mechanical stress.
The chemical composition affects the degree of hardenability and mechanical resistance.