Insert Material:We can suggest different carbide material according to different usage.
Item
Co
Grain Size
Density
Hardness
TRS
Impact Strength
Application
Mediun-Grained
Co%
μm
g/cm²
HRA
Kgf/mm²
Kgf/m-cm²
KG2
6.50%
2~3
14.90
90.5
320
0.28
Drawing die
KG3
9%
2~3
14.61
89.3
340
0.52
Extrusion die
KG5
12%
2~3
14.31
88.3
340
0.58
Extrusion die
KG6
14%
2~3
14.12
87.3
320
0.65
Extrusion die
Coarse-Grained
ST6
15%
3~6
13.80
86.0
270
0.78
Stainless steel
ST7
20%
2~6
13.40
85.3
270
0.80
Stainless steel
EA65
18%
2~6
13.73
85.0
300
0.80
Carbon steel screw/cutting die
VA80
20%
3~6
13.58
84.0
280
0.85
Impact
resistance
VA90
22%
6~9
13.39
82.5
240
0.90
Impact
resistance
EA90
24%
2~6
13.22
82.8
270
0.90
Impact
resistance
Case Material:Our main case material is H13(SKD61) HRC46-48
SKD61(H13)
Chemical Composition
C
Si
Mn
P
S
Cr
Mo
V
W
Content (%)
0.39
1.15
0.44
0.021
0.007
5.12
1.3
0.94
0.06
Cu
Ni
0.05
0.06
Surface Treatment:TiN / TiAlN
Process
Advantages
1. Zero-Slip Grip Technology
Precision tapered self-locking design with radial grooves, eliminating tool slippage even under 200+ ton impacts (tested at 100,000+ strokes).
2. Ultra-Wear Resistance
Core: SCM440 alloy steel hardened to HRC60-63 with 0.1mm nitride coating; optionally tungsten carbide-lined for abrasive materials.(3x lifespan vs. standard collets).
3. Universal Press Compatibility
ISO-standardized taper angles (1°-5°) + adaptive shank range (5-30mm), reducing setup time by 40% across CNC punching/compound dies.