High Speed Steel

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For modern industrial production, in particular mass production, machining is one of the most important shaping and forming processes. Almost all tools employed for  this purpose are made from high speed steels. The characteristic properties of all  high speed steels grades include.

 

 


 

  •      High working hardness
  •      High wear hardness
  •      Excellent toughness
  •      High retention of hardness and red hardness

Influence of alloying elements on the steel properties:

Carbon: Forms carbides, increases wear resistance, is responsible for the basic matrix hardness.

Tungsten and Molybdenum: Improves red hardnesss, retention of hardness and high temperature strength of the matrix, form special carbides of great hardness.

Vanadium: Forms special carbides of supreme hardness, increase high temperature wear resistance, retention of hardness and high temperature strength of the matrix.

Chromium: Promotes deep hardening, produces readily soluble carbides.

Cobalt: Improves red hardness and retention of hardness of the matrix.\

Aluminium: Improves retention of hardness and red hardness.


Since it is possible to achieve specific properties by careful adjustment of these alloying elements, we are able to offer the most suitable high speed steel grade for virtually all kinds of application

Table of Products

MOLYBDENUM – BASED HIGH SPEED STEEL 

COMPOSITION %

C

Si

Mn

Cr

Mo

Ni

V

W

Co

 

0.90

-

-

4.10

5.00

-

1.80

6.20

-


COLOUR CODE
 : GREEN



PROPERTIES AND APPLICATIONS :


The well balanced composition produces both excellent toughness and cutting power and makes this economical molybdenum high speed steel a standard grade for all types of roughing and finishing tools, as well as for all tools demanding a high degree of toughness.
Its wide application will help to simplify stock keeping.

Applications : Taps, twist drills, reamers, broaching tools, metal saws, milling tools of all types, woodworking tools and cold work tools.

 

 

S705 – 1.3243

Co, W, Mo ALLOYED HIGH SPEED STEEL

COMPOSITION %

C

Si

Mn

Cr

Mo

Ni

V

W

Co

 

0.92

-

-

4.10

5.00

-

1.90

6.20

4.80


COLOUR CODE
 : YELLOW & GREEN


PROPERTIES AND APPLICATIONS :


Good toughness and hot strength.
Heavy duty turning and planning tool of all types, milling cutters, twist drills, taps, woodworking tools as well as cold work tools.

 



S600

Description: Tungsten-molybdenum high speed steel with excellent toughness and cutting properties.
Specification Download
S600 PDF  

S705

Description: Cobalt alloyed, tungsten-molybdenum high speed steel possessing high hardness, excellent cutting properties, high red hardness and good toughness.
Specification Download
S705 PDF  

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Powder Metallurgy

High Alloy Steels will gain improved properties by increasing the solidification rate. This gives a fine microstructure and small, well-distributed carbides in the matrix.

During Powder Metallurgy (PM), the melt stream is atomised by nitrogen gas into small droplets with an average size of 50-100 µm. The powder is filled into capsules directly in order to avoid contamination. With hot isostatic pressing (HIP), the powder is consolidated to 100% density.

By using a special refining sequence, the cleanliness of the molten steel is improved prior to atomisation. This results in improved mechanical properties and an extremely low non-metallic inclusion level (SuperClean™).

The HIP'ed PM capsules are hot forged and rolled to smaller bar sizes followed by heat treatment and machining.

PM steels are used in very demanding applications within cold work, plastic and cutting tools.

There are only a few Powder Metallurgical Plants world wide with the Bohler Uddeholm Plant being the most advanced plant to date.  Bohler Uddeholm is able to produce Generation 3 Powder Metallurgical tool steels called Microclean which is able to yield 20% better performance then the Generation 1 or 2 PM steels.  This means longer tool life for our customers.



Vanadis 23

Description: Vanadis 23 SuperClean³ is a high alloyed powder metallurgical high speed steel suitable for long run tooling in applications with high demands on mixed wear (abrasive/ adhesive) or where risk of plastic deformation of the working surface of the tooling is encountered.
Specification Download
Vanadis 23 PDF  

Vanadis 30

Description: Vanadis 30 SuperClean³ is a cobalt high performance high speed steel. The cobalt addition has a positive influence on the hot wear resistance. Hot wear resistance and ductility are key properties in high speed steel cutting tools.
Specification Download
Vanadis 30 PDF  

Vanadis 60

Description: Vanadis 60 SuperClean³ is a premium high alloyed PM high speed steel with 10,5% cobalt. Vanadis 60 SuperClean³ is particularly suitable for cutting tools where highest demand on wear resistance and hot hardness prevails.
Specification Download
Vanadis 60 PDF  

S390

Description: Produced by Powder Metallurgy methods. Segregation free and homogeneous metal powders of highest purity and adequate granulation are processed to a homogenous and segregation free high speed steel of virtual isotropic properties in a diffusion process taking place at high pressure and temperature.
Specification Download
S390 PDF  

S290

Description: Produced by Powder Metallurgy methods. Segregation free and homogeneous metal powders of highest purity and adequate granulation are processed to a homogenous and segregation free high speed steel of virtual isotropic properties in a diffusion process taking place at high pressure and temperature.
Specification Download
S290 PDF  

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