About Us

EQUIVALENT GRADES

TECHNICAL SPECIFICATION


Cold work tool steels include those steels which require high mechanical forces and sliding contact between the tool surface and the work material and where the surface temperature of the material is not elevated.

APPLICATION

  • Turning tools
  • Slotting tools
  • Twist drills
  • Saws
  • Chasers
  • Broaching tools
  • Cold extrusion dies
  • Tool bits
  • Planning tools
  • Taps
  • Lathe tools
  • Hobs
  • Profile cutting tools
  • Reamers
  • Punches

QUALITIES

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.


  • Greater Hardness
  • High wear resistance.
  • Total Cracking Resistance
  • Resistance to Plastic Deformation
  • Chipping Resistance
  • Good Mach inability and Grind Ability

EQUIVALENT GRADES

American (AIAI)

(W - Nr)

German (DIN)

Japanese (JIS)

Bohler

Assab

D-2

1.2379

X155CrVMo12-1

SKD-11

K 110

SVERKER 21 (HCHCr)

D-3

1.2080

X210Cr12

SKD - 1

K 100

-

0-1

1.2510

100MnCrW4

SKS-3

K 460

DF -2

0-7

-

-

-

-

-

S-1

1.2550

45WCrV7

SKS 41

K 455

M-4

-

-

-

-

K 340

-

A-8 (MOD)

1.2631

X50CrMow9-1-1

-

K 329

-

D2 KNL

1.2601

X165CrMoV12

-

K 105

-


 

CHEMICAL COMPOSITION


 

C

Si

Mn

P

S

Cr

Mo

V

W

Ni

D-2

1.50-1.60

0.10-0.40

0.15-0.45

0.030 max

0.030 max

11.00-12.00

0.60-1.20

0.90-1.10

-

-

D-3

1.90-2.20

0.10-0.40

0.15-0.45

0.030 max

0.030 max

11.00-12.00

-

-

-

-

0-1

0.85-0.95

0.20-0.40

1.00-1.30

-

-

0.40-0.60

-

0.00-0.20

0.40-0.60

-

0-7

1.10-1.30

0.50-0.70

0.90-1.10

-

-

0.35-0.85

0.20-0.40

0.30-0.50

1.00-2.00

-

S-1

0.45-0.55

0.70-1.00

0.30-0.70

-

-

1.20-1.70

-

0.10-0.30

2.00-2.50

0.40M

K 340

1.00-1.20

0.80-1.00

0.30-0.50

-

-

8.00-8.50

2.00-2.20

0.40-0.60

-

-

-8 (MOD)

0.50-0.60

0.80-1.00

0.40-0.60

0.035 max

0.030 max

7.50-8.50

1.25-1.50

0.40-0.60

-

-

D2 KNL

1.55-1.75

0.25-0.40

0.20-0.40

0.030 max

0.030 max

11.0-12.0

0.50-0.70

0.10-0.50

0.40-0.60

-