High Precision Stamping

Applied Polytech provides various carbide material solutions for different applications

to achieve longer service life, better stability and higher efficiency :

- AP-76 Series: Materials for Stamping Motor Core

- AP-71 Series: Materials for Stamping Lead Frame and Electronic Connector

We offer 200 standard specifications and other customized specifications:

​- Standard EDM blocks

Standard carbide rings

- Customized carbide performance

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WHAT WE ARE OFFERING

Series
Grade
Cobalt content Co%
Density (g/cm3)
Hardness (HRA)
TRS (MPa)
Compression Strength (MPa)
Young’s Modulus (GPa)
Grain Size (µm)
AP-76
7630P
12
14.15
90.2
3600
4900
580
1.0-2.0
AP-76
7640H
12.5
14.2
89.5
3700
4700
570
1.0-2.0
AP-76
7650H
14
14
88.5
3800
4600
550
1.5-3.0
AP-76
7655HH
16.5
13.8
87.4
3500
4200
540
1.0-4.0
AP-71
7110H
6
14.85
90.5
3000
5200
620
0.5-5.0
AP-71
7118
12
14.17
89.5
3600
5500
580
1.0-2.0
AP-71
7120
13.5
14.05
90
3700
5300
560
0.5-1.5
AP-7U
7U20
10.3
14.4
91.5
3800
5600
600
0.8
AP-7U
7U40
15
13.9
90.5
4000
5300
540
0.8
AP-7U
7U25UF
12
14.05
92.2
4400
6000
570
0.5

AP-76 Series: Materials for Stamping Motor Core

Designed for stamping molds under heavy-duty, AP-76 series are featured in medium cobalt content and mixed tungsten carbide powder grain sizes which give them much better anti-impaction ability, higher anti-shock resistance and corrosion resistance. This reduces corrosion and fraction on the surface of finished carbide products.

 

 

AP-7630P

 

AP-7630P has high hardness and fine toughness, suitable for stamping of silicon

steel sheet (≤0.35mm) with high hardness of micro motor and servo motor.

 

 

 

 

 

 

 

 

 

 

 

AP-7640H

AP-7640H has high abrasive resistance and toughness as well as high hardness.

It’s mainly used to producing conventionally series iron core of motor rotor.

 

 

 

 

 

 

 

 

 

 

 

 

AP-7650H

AP-7650H has good toughness and anti-shock resistance. It is suitable for producing

complex iron core of brushless motor rotor, servo motor rotor and also mini-size

iron core of motor rotor.

 

AP-7655HH

 

AP-7655HH has excellent anti-shock resistance which can make it suitable for

stamping very thick mold at low speed.

 

 

AP-71 Series: Materials for Stamping Lead Frame and Electronic Connector

AP-71 series provides the best solution for high speed stamping SPCC, steel belt, beryllium copper belt and 304 stainless electronic components, etc. This series is widely recommended to be used in the PG components manufacturing field because of its high reputation in lead frame and connector industry.

AP-7110H

 

AP-7110H increases the incompatibility between the carbide mold

and the materials, which prevents the material to retain on the mold.

This grade is suitable for stamping soft materials like pure steel,

pure copper and SPCC at high speed.

 

 

 

 

 

 

AP-7120

 

AP-7120 has good universal performance and toughness, it is used

to stamping thin stainless-steel plate and copper plate.

 

 

 

 

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