Special engineering steels
Whether heat-resistant steels, case-hardening steels, quenched and tempered steels or nitriding steels - alloyed stainless steels from BGH are used wherever maximum fatigue strength, wear resistance and surface hardness are required.
They are characterised by a particularly high degree of purity, which has a positive effect on the operating properties. Maximum purity can be achieved by additional remelting as ESR, PESR and VAR remelting.
Materials and areas of application
BGH quenched and tempered steels are characterised by their high strength in combination with good toughness.
Our modern heat treatment facilities - classic or inductive - as well as the know-how of our employees guarantee compliance with narrow process windows and precise temperature control to achieve the required mechanical-technological properties.
BGH case-hardening steels are perfectly matched in their analysis to the requirements of modern transmission and drive parts. The required combination of core toughness and hard, wear-resistant surface is achieved by case-hardening or carburising the finished component.
The carbon diffuses into the surface of the component and causes its martensitic transformation during subsequent hardening.
BGH nitriding steels with their high wear resistance are used in gearboxes, drive shafts and conveyor shafts, among other applications. Due to the use of strong nitride formers such as vanadium, molybdenum, aluminium or chromium, these steels are particularly suitable for surface hardening by nitriding.
The nitriding process takes place after finish machining and gives your components maximum wear resistance with high surface strength and a ductile core zone. Due to the lower temperatures during nitriding compared to carburising, thermal distortion is kept to a minimum.
Your application requires high strengths at application temperatures up to 600 °C? You do not want to compromise on the proof stress and want to avoid premature component failures?
Then BGH heat-resistant steels with their homogeneous microstructure and proven alloying concepts are the right choice.
Chromium, molybdenum and vanadium as the most important alloying elements in combination with a low content of trace elements guarantee reliability in applications in the field of energy generation or thermal power plant technology.
BGH quenched and tempered steels are characterised by their high strength in combination with good toughness.
Our modern heat treatment facilities - classic or inductive - as well as the know-how of our employees guarantee compliance with narrow process windows and precise temperature control to achieve the required mechanical-technological properties.
BGH case-hardening steels are perfectly matched in their analysis to the requirements of modern transmission and drive parts. The required combination of core toughness and hard, wear-resistant surface is achieved by case-hardening or carburising the finished component.
The carbon diffuses into the surface of the component and causes its martensitic transformation during subsequent hardening.
BGH nitriding steels with their high wear resistance are used in gearboxes, drive shafts and conveyor shafts, among other applications. Due to the use of strong nitride formers such as vanadium, molybdenum, aluminium or chromium, these steels are particularly suitable for surface hardening by nitriding.
The nitriding process takes place after finish machining and gives your components maximum wear resistance with high surface strength and a ductile core zone. Due to the lower temperatures during nitriding compared to carburising, thermal distortion is kept to a minimum.
Your application requires high strengths at application temperatures up to 600 °C? You do not want to compromise on the proof stress and want to avoid premature component failures?
Then BGH heat-resistant steels with their homogeneous microstructure and proven alloying concepts are the right choice.
Chromium, molybdenum and vanadium as the most important alloying elements in combination with a low content of trace elements guarantee reliability in applications in the field of energy generation or thermal power plant technology.
QT steels
Properties
35NiCrMoV12-5 is a quenching and tempering
steel with excellent strength, good toughness
and wear resistance.
The grade is well suited for surface hardening by
nitriding.
Delivery condition
- annealed (+A), max. 265 HBW
- quenched and tempered (+QT)
- quenched and tempered, stress relieved (+QT +SR)
Application area
Highly stressed, safety-relevant bolts and components.
Typical applications
- Safety bolts for mobile cranes
- Defence technology
Data sheet
Case-hardening steels
Data sheet
Nitriding steels
Data sheet
Prpperties
41CrAlMo7-10 is a Cr‑Al‑Mo nitriding steel with high strength and toughness in the core. After nitriding, it achieves very high surface hardness and offers excellent wear resistance, high fatigue strength, and good dimensional stability. Difficult to weld.
Delivery Condition
- quenched and tempered (+QT)
- quenched and tempered, stress releived (+QT +SR)
- annealed (+A), max. 248 HBW
Application Area
Highly loaded parts requiring a hard surface and tough core, such as pistons, cylinders or pinion shafts. Nitriding of the surface is carried out after machining.
Typical Applications
- Heavy-duty engine manufacturing
- Automotive industry
- General mechanical engineering