The blanking and forming of materials in cold condition is done in many different application such as; shearing, punching, cold forging, drawing, cold extrusion, rolling and powder pressing.
All applications include high mechanical forces and sliding contact between the tool surface and the work material. There are high demands on tool hardness to give wear resistance and resistance to plastic deformation. In order to improve the wear resistance further some of the cold work steel grades are highly alloyed giving hard particles (carbides) in the matrix. The combination of high hardness and hard carbides is however also impairing the machinability.
Special Steels & Metals can provide you with tool steels from a program of high quality tool steels covering all your demands. Low alloyed carbon tool steel grades, high-alloyed conventional metallurgy grades as well as powder metallurgical grades. Depending on the application, the work material and the production series, a cold work tool steel program and high speed steel program will contain grades with different combinations of:
- Wear resistance
- Resistance to plastic deformation
- Chipping resistance
- Total cracking resistance
- Good machinability and grind ability
Cold work steel is exposed to high stresses and requires great resistance against wear, impact and bending. The development of new steel grades is mainly guided by analyzing damage suffered by tools in various processes. In each area of use, properties are sought which will extend the working life of the tool. Different types of wear demand different types of steel. Product development is moving towards producing more robust steels with higher resistance to wear and greater durability.
We can help the tool user to choose the right steel and heat treatment for the application. This usually results in lower tooling costs, lower maintenance costs and less downtime.
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BOHLER/ ASSAB
GRADE |
COLOUR CODE |
AISI/ BS |
W.Nr DIN |
DESCRIPTION/ APPLICATION |
FORMS AVAILABLE |
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BOHLER K110
Download PDF
UDDEHOLM
SVERKER 21
Download PDF |
BLUE |
D2 |
1.2379 |
High carbon,high chromium
tool steel with high dimensional stability in heat treatment and wear resistance. Cutting and blanking. Wood working. Cold shear blades. Cold forming. Ceramic pressing. Gauges. |
Rounds
Diam12.7-
Dia 503mm
Flats 3.5 - 100mm t
Block
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BOHLER K455
Download PDF |
RED WHITE |
S1 |
1.2550 |
Shock resisting steel with excellent toughness and fine wear resistance. Cutting tools for heavy plate, shear blades, woodworking, cold punching and upsetting, coining tools. |
Rounds
Diams
25 - 131.5 mm |
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BOHLER K460
Download PDF |
GREEN |
01 |
1.2510 |
Oil hardening tool steel for manufacture of cutting tools, blanking and punching tools. Machine knives, threading tools. |
Rounds
20 - 320mm
Flats 15 - 102 mm t
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BOHLER K600
Download PDF |
ORANGE WHITE |
EN30B
(modified) |
1.2767 |
Cold work steel with high toughness, compressive strength and polishability, coining tools, plastic moulds, heavy duty shearblades, hobbing tools; mechanical components. |
Rounds
ø 15 - ø 252
Flats
30 - 250mm t
Block |
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UDDEHOLM
CALMAX
Download PDF |
PURPLE WHITE |
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Air hardening Cr Mo V alloyed steel with high toughness, good wear resistance and polishability. Cold work - heavy duty blanking & forming rolls, shear blades. Plastic Moulding - for reinforced plastics, compression moulds. |
Rounds
Diam 14 - ø 315
Flats
28 - 200mm t
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UDDEHOLM
SLEIPNER
NEW
Download PDF |
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Special steel with very wide properties profile from good general wear resistance, compressive strength and a high resistance to chipping and cracking to good hardenability and good machining properties. |
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BOHLER K340
NEW
Download PDF |
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Excellent air hardening properties, good dimensional stability, good toughness, high compression strength and wear resistance, very good retention of hardness, excellent nitriding and PVD coating properties. For blanking and punching tools, Cold forming tools ,thread rolling tools. |
Rounds
Diam71mm -
Diam 106.5mm. |
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UDDEHOLM
VIKING/CHIPPER
Download PDF |
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Cr-Mo steel for chipper knives and other knives exposed to high stresses.
Has good toughness and
wear resistance |
Flats
10.7mm -
44mm thick |
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UDDEHOLM
RIGOR
Download PDF |
GREEN RED |
A2 |
1.2363 |
Air or oil hardening tool steel with high stability, compressive strength and toughness. Forming Rolls, Coining Dies, Swaging Blocks, dies for abrasive plastics. |
Rounds
ø 10 - ø 330
Flats
15 - 100mm t
Block
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