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H40S Tungsten Carbide Precision Punch Pins

For applications demanding the highest level of accuracy and extreme wear resistance, look no further than our advanced line of High Precision H40S Tungsten Carbide Punches. Engineered for longevity and consistent performance in rigorous industrial environments, these punches are the cornerstone of reliable production. They are specifically designed to meet the exacting tolerances required in modern precision stamping and forming operations. Our H40S Carbide Precision Stamping Punches excel in high-volume runs, significantly reducing downtime for tool changes and maintenance. For intricate die work and applications where material integrity is paramount, our Precision H40S Carbide Die Punches deliver unmatched dimensional stability, ensuring every part meets specification, cycle after cycle.


The core advantage of the H40S Tungsten Carbide Precision Punch Pins lies in their exceptional material properties and manufacturing precision. These components are crafted from a premium grade of tungsten carbide, a composite material renowned for its superior hardness, compressive strength, and resistance to deformation under high stress and temperature. This makes H40S Tungsten Carbide Precision Punch Pins ideally suited for piercing, blanking, and forming a wide array of materials, including high-strength steels, non-ferrous metals, and various composites. The inherent wear resistance directly translates to longer tool life, reduced production costs associated with frequent replacements, and improved part quality with minimal burring or edge deformation.

Key Specifications & Technical Data

The following parameters define the performance envelope of our H40S Tungsten Carbide Precision Punch Pins:

  • Material: Premium Tungsten Carbide (H40S Grade)
  • Hardness: 90.5 - 91.5 HRA
  • Transverse Rupture Strength (TRS): ≥ 3800 N/mm²
  • Density: 14.70 - 14.90 g/cm³
  • Grain Size: Sub-micron
  • Surface Finish: Ground & Polished to Ra ≤ 0.2 µm
  • Standard Diameter Range: 0.5mm - 25.0mm
  • Length Tolerance: ±0.01mm
  • Concentricity: ≤ 0.003mm T.I.R.

Standard Dimensions & Tolerances

Nominal Diameter (mm) Diameter Tolerance (mm) Shank Standard Typical Working Length (mm)
0.5 - 3.0 -0.002 / -0.005 Custom / ISO 10 - 50
3.01 - 10.0 -0.003 / -0.008 ISO 8020 20 - 100
10.01 - 25.0 -0.005 / -0.012 ISO 8020 / ANSI 30 - 150

Performance Comparison

Property H40S Carbide Punch High-Speed Steel (HSS) Punch Advantage Factor
Hardness (HRA) 90.5 - 91.5 82 - 85 ~15% Harder
Wear Resistance Excellent Good 5x - 10x Longer Life
Compressive Strength Extremely High High Superior for High-Stress Apps
Max Operating Temp 800°C 600°C Better Thermal Stability

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