Cold Work

Cold Work Tool Steels are employed for the manufacture of tools for applications involving surface temperature of not more than 200˚C.  In this temperature range, they must feature the following properties in order to guarantee tool resistance to the high stresses arising from the numerous machining and shaping procedures.

  • High wear resistance
  • Good toughness
  • Excellent compressive and impact strength
  • High dimensional stability in heat treatment
  • Sufficient machinability

A well balanced alloy content ensures that optimum properties are achieved for individual applications.

Böhler Steels

Please note that equivalent grades i.e. W/stoff No's would have the same chemical composition as a Böhler Grade, HOWEVER this does not mean that the grade will achieve the same performance as the Böhler Grade. This is due to the processes which we at Böhler put our steels through ensuring that they are of the highest grade and quality.

We invest great sums of money each year into R&D every year and that is how we achieve the know-how that brings you our customer the best steel properties available to each grade.


 

K110 - 1.2379

DIMENSIONALLY STABLE COLD WORK STEEL

COMPOSITION %

C

Si

Mn

Cr

Mo

Ni

V

W

Co

 

0.63

1.10

1.10

0.60

-

-

-

-

-

COLOUR CODE : BLUE & WHITE

PROPERTIES AND APPLICATIONS :

Good toughness, high resistance, air hardening steel.
Blanking and punching tools, cold rolls, drawing, deep drawing tools and cold extrusion dies.
Can be nitrided, tuffrided or PVD-coated
Suitable for TD-Coating


 

K245 - 1.2101

COLD WORK STEEL WITH GOOD SHOCK RESISTANCE

COMPOSITION %

C

Si

Mn

Cr

Mo

Ni

V

W

Co

 

0.63

1.10

1.10

0.60

-

-

-

-

-

COLOUR CODE : BLUE & RED

PROPERTIES AND APPLICATIONS :

Good abrasion resistance with excellent elasticity.
Can be flame hardened.
Colletts, chucks, arbors.
Guillotine and shear blades.
Punches. Hand tools (screw drivers, chisels, centre punches, etc).


 

K340 ISODUR

COLD WORK STEEL FOR WEAR RESISTANCE AND COMPRESSIVE STRENGTH REQUIREMENTS

COMPOSITION %

C

Si

Mn

Cr

Mo

Ni

V

W

Co

 

1.10

0.90

0.40

8.30

2.10

-

0.50

-

-

COLOUR CODE : DARK BLUE & LIGHT BLUE

PROPERTIES AND APPLICATIONS :

Good toughness, high compression strength combined with high water resistance
Excellent air hardening steel
Cutting tools, blanking and punching tools, cold forming
e.g. drawing, deep drawing and extrusion tools, coining tools, thread rolling dies, shear blades
Excellent nitriding and PVD coating properties
Good electrical discharge machinability
Suitable for TD-Coating


 

K455 - 1.2550

IMPACT RESISTANT COLD WORK STEEL

COMPOSITION %

C

Si

Mn

Cr

Mo

Ni

V

W

Co

 

0.63

0.60

0.30

1.10

-

-

0.18

2.00

-

COLOUR CODE : BLUE & BROWN

PROPERTIES AND APPLICATIONS :

Excellent toughness and good machinability.
Inserts for pneumatic tools.
Heavy stamping tools, as well as dies and punches for heavy plate work.


 

K460 - ~1.2510

GENERAL PURPOSE COLD WORK STEEL

COMPOSITION %

C

Si

Mn

Cr

Mo

Ni

V

W

Co

 

0.95

0.25

1.10

0.55

-

-

0.10

0.55

-

COLOUR CODE : BLUE & GREEN

PROPERTIES AND APPLICATIONS :

Oil hardening tool steel with good machinability.
Dies and puches for cutting
Woodworking tools
Machine Knives
Also available as flat ground stock

Tolerance (mm):
Thickness,-0 to 0,6
Width -0 to 1,5
Length -0 to 1,6


 

K510 SILVER STEEL - 1.2210

SILVER STEEL

COMPOSITION %

C

Si

Mn

Cr

Mo

Ni

V

W

Co

 

1.18

0.25

0.30

0.70

-

-

0.10

-

-

COLOUR CODE : -

PROPERTIES AND APPLICATIONS :

Twist drills and taps, ejectors, punches, reamers, counter sinks engraving tools, metal cutting saws.
Supplied to tolerance ISO h8, ground and polished in fixed lenghts of 2000 mm.


 

K600 - 1.2767

COLD WORK TOOL STEEL

COMPOSITION %

C

Si

Mn

Cr

Mo

Ni

V

W

Co

 

0.48

0.25

0.40

1.30

0.25

4.00

-

-

-

COLOUR CODE : BLUE & YELLOW

PROPERTIES AND APPLICATIONS :

Highly stressed coining tools, cutlerly dies, hobbing tools, cold shear blades
for heavy gauge plastic moulds.


 

 

SLEIPNER

COLD WORK TOOL STEEL

COMPOSITION %

C

Si

Mn

Cr

Mo

Ni

V

W

Co

 

0.90

0.90

0.50

7.80

2.50

-

0.50

-

-

COLOUR CODE : -

PROPERTIES AND APPLICATIONS :

SLEIPNER is a general pupose steel for cold work tooling.
It has a mixutre of abrasive wear profile and a good resistance to chipping.
Examples of applications are blanking, forming, cool extrusion, drawing and deep drawing and powder pressing.


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Uddeholm

Since 1668, Uddeholm has been associated with knowledge, innoviative spirit and the special quality of Swedish steel. During the centuries, Uddeholm has attained many valuable experiences. Today as part of the Böhler Uddeholm group Uddeholm Tooling is world's leading producer of tool steel. The word "trust" summaries what Uddeholm Tooling think is essential in a relationship, whether it's in business or ordinary life. Trust paves the way for long term partnerships. You can not develop and achieve success without it. Uddeholm thinks globally and is represented in over 100 countries world wide.

If you are unable to find the material you require please check Bohler Grades.

Title Type/Filesize Download

Arne
A low alloyed universal cold work steel for short runs. Excellent machinability.

PDF / 135 KB PDF Download

Calmax
Tool steel with a properties profile devoted for safe production i.e very high toughness but still fairly good wear resistance.

PDF / 154 KB PDF Download

UHB 11
UHB 11 is primarily intended to be used in the as delivered condition. It is only to be heat treated for special applications.

PDF / 129 KB PDF Download

Sverker 3
Sverker 3 has gained widespread acceptance as a steel with exceptional wear resistance, suitable for long-life tooling with low repair and maintenance costs, for maximum production economy.

PDF / 153 KB PDF Download

Sleipner

PDF / 132 KB PDF Download

ESR



ElectroSlag Remelted In Electro Slag Remelting the ingot is built up in a water cooled mould by melting a consumable electrode immersed in a superheated process slag. An electrical current flowing through the liquid slag, which provides the electrical resistance, generates the heat. As the slag temperature rises above the liquids temperature of the steel, the tip of the electrode melts. The reaction between slag and steel droplets results in a significant reduction in sulphur and non-metallic inclusions. The directional solidification of the ingot from bottom to top results in an ingot with a high homogeneity and freedom from macro - segregations. This gives uniform mechanical properties in the longitudinal and transverse directions after hot working. By utilizing homogenisation annealing of ingots, a high ingot break down and special heat treatment methods for structure refinement and strategy is fulfilled in optimising steel properties for an extended tool life.