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Cold Work Tool Steel

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Cold Work Tool Steel

The blanking and forming of materials in cold condition is done in many different applications 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.

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
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GLORIA (AISI)DINJISBOHLERUDDEHOLMHITACHI
D21.2379SKD11K110SVERKER21SLD
D31.2080SKD1K100SVERKER3CRD
D3 ESR-----
O11.2510SKS3K460ARNESGT
S71.2355----
S7 ESR-----
D2 Supreme1.2990DC53K340-SLD MAGIC
--SX105V--HMDS
GradeChemical CompositionApplication
D2CSiMnPSCrMoVNiCuWCo
D31.460.340.340.025<0.00111.490.810.790.320.21--Cold work dies for roll forming, Blanking, Punches, shere blades etc
D3 ESR2.100.260.230.021<0.00111.54-0.080.110.7<0.010.08Cutting tools, drawing dies, trimming dies, blanking dies for paper and plastics, shear blades etc.
O12.090.250.320.024<0.00111.99------Cutting tools, drawing dies, trimming dies, blanking dies for paper and plastics, shear blades etc.
S70.940.221.080.0110.0020.55-0.09--0.54-Blanking and stamping dies for cutting sheets up to 6 mm thickness, threading tools, drills, broaches, gauges, measuring tools, plastic moulds, shear blades..
S7 ESR0.500.340.660.016<0.0013.251.370.260.120.08--Forging Dies, Punches, Chisels, Hammer, Hot Heading Dies and Gripper Die, Shear Blades etc.
D2 Supreme0.490.340.640.021<0.0013.211.390.240.130.09--Forging Dies, Punches, Chisels, Hammer, Hot Heading Dies and Gripper Die, Shear Blades etc.
DC53
0.961.000.280.0180.0028.002.100.32----Cold work dies for high tensile steels, Mass prodn.
SX105V
0.740.980.800.0120.0021.050.2000.070.050.06--cold work tool steels, such as sheet punching die, sizing die, trimming die, cold extrusion die, etc.