Case-hardening steel is used in particular when both high internal toughness and significantly greater surface hardness are required, for example in gears, shafts and bolts.
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Tool Steels
Material Classifictation
40CrMnMo7
Family
Plastic Moulding
Material Number
1.2311
Brand
Formadur 2316 /Superclean
Characteristics
Standard steel for Moulds
This is a Bar (Product) forged (Forming) quenched and tempered (Melting). You can get it in round (Shape) and processed (Finish).
Customized solutions for the highest demands in drive technology
Case-hardening steels for optimized surface hardness and internal toughness are suitable for applications such as gears and shafts. Swiss Steel Group offers unalloyed or low-alloyed variants with high surface hardness and core toughness through case hardening. The selection is based on desired properties such as hardenability, mechanical properties and resistance to fatigue. The Swiss Steel Group's Jomasco family was developed to minimize deformation during treatment and works with the hardenability concept. These steels are mainly used in transmission components such as pinions and shafts.
JOMASCO®
The JOMASCO® family was developed to reduce deformation during treatment and is based on the principle of hardenability. These steels are used specifically in transmission components such as pinions and shafts. JOMASCO® steel grades are suitable for both innovative case hardening processes (low-pressure carburizing and gas quenching) and conventional machining techniques. On request, they can be adapted to the specific requirements of carburizing at high temperatures while maintaining the perfect behaviour of the austenite grain.
ESP 65
The case-hardening steel for modern cutting machines
The case-hardening steel ESP 65 was developed specifically for demanding construction materials in modern cutting machines. Compared to 16MnCr5 and 16MnCrS5, ESP 65 offers improved machinability and performance. This excellent machinability leads to shorter machining times, longer tool life and therefore lower process costs. The homogeneous material properties enable precise tolerances and reduce distortion during hardening. Straightening and grinding can be minimized, which further reduces costs.
Specially developed for machining-intensive components
ESP 65 is particularly suitable for machining-intensive components such as gears, worm gears and transmission parts. Thanks to its special properties and manufacturing processes, it has similar machining properties to free-cutting steel, reduces machining stresses and has a positive influence on distortion behavior after hardening. As a result, ESP 65 differs significantly from standard steels.
Our steel is a driving force and cornerstone in a wide range of sectors and industries, driving them worldwide and playing a decisive role in solving current and future challenges.
Our Carbodur steel is used in a wide range of applications in power-transmitting systems such as hydroelectric power plants, wind turbines and the offshore industry. It is characterized by high wear resistance, fatigue strength and hardness. In propeller drives on oil rigs, for example, precision gears made of Carbodur ensure high wear resistance, while safety and durability are crucial in mining. The versatility of the steel allows it to be adapted to specific requirements, whether for the differential of Formula 1 racing cars or durable truck gears used on construction sites.
We offer Carbodur steel in various alloy compositions:
unalloyed
chrome-alloyed
manganese-chrome-alloyed
molybdenum-chrome-alloyed
nickel-chrome-alloyed
nickel-chrome-molybdenum-alloyed
chrome-nickel-molybdenum-alloyed
These alloys influence the hardenability of the base material and the carburized surface layer. The hardenability of the base material is characterized by the face quenching test and influences the hardness in the core area. Case-hardened components are tempered at low temperatures up to approx. 180°C in order to achieve a high surface hardness.
Unalloyed case-hardening steel (e.g. C15R in accordance with EN ISO 683-3) is used for low-stress parts such as hubs, shafts and levers for vehicle and general mechanical engineering. Alloyed case-hardening steel (e.g. 16MnCrs5 in accordance with EN ISO 683-3) is used for components with medium or high surface hardness and high core toughness, depending on the alloy. These include highly stressed gear wheels and control parts in vehicle and aircraft construction. With the help of temperature-controlled rolling, we are also able to supply our customers with a 16MnCrS5 with an almost pure ferritic-pearlitic microstructure.
Climate-neutral steel production
With our Green Steel, we are taking an important step towards climate-neutral steel production. Scrap steel is used as the main raw material and the steel is produced using the electric steel process with energy sources with a low CO2 content. This results in a CO2 footprint well below the industry average.
