Thanks to our innovative powder metallurgy processes, we are able to achieve material properties that were previously considered impossible to combine. Material solutions including design and close-to-contour production By using powder mixtures developed in-house, we can set individual material properties. We can use multi-layer technology to combine the properties of different materials.

Base material

The base of our “BleiStahl” products is a material with process-related residual pores.

Solid lubricant

The addition of solid lubricants such as graphite enables us to significantly improve the machining properties as well as the general material properties.

Hard phases

By adding hard phases, we achieve a considerable increase in the wear resistance of the material. This leads to improved robustness and durability of the material.

Pore infiltration

In the sintering process, material pores can be filled by infiltration with liquid copper, which leads to improved thermal conductivity and mechanical properties such as hardness and compressive strength. Alternatively, other alloys or oils can also be used to fill the pores.

Pure element

Microstructures and material properties can be specifically adjusted by adding pure elements to the powder mixture. For example, large cobalt particles improve high-temperature wear resistance.

Additional matrix

By adding one or more metal powders, we can create a multiphase structure. This offers a wide range of customization options so that the material mixture can be specifically adjusted to the customer’s requirements.


We are specialists in innovative material solutions that go far beyond the usual standards. Our focus is to develop materials that combine seemingly incompatible properties. These properties include, for example, electrical conductivity, temperature resistance, wear resistance, and many more.


We have excellently equipped quality and development laboratories to test your product to the most modern and highest standards.

Powder analysis
  • Particle size distribution using a light spectrometer
  • Sieve fractions by means of sieve analysis
  • Flow velocity
  • Filling density
  • Compressibility
  • Dimensional change behavior
  • Green bending strength
Mechanical-technological testing
  • Macro hardness measurements according to HB, HV, HRA, HRB, and HRC
  • Microhardness measurements (“nanoindentation”)
  • Hot hardness measurements
  • Hot compressive strength
  • Three-point bending test
  • Radial breaking strength
  • Tensile test
  • In-house specimen production
Wear testing
  • Bicycle brake test stand
  • High-temperature sliding wear test rig (SRV)
  • RIG test 1 (determination of valve seat ring and valve wear) cars
  • RIG test 2 (determination of valve seat ring and valve wear) Truck
  • RIG test 3 (determination of valve guide and valve wear)
  • Fully equipped metallography laboratory for sample preparation
  • Scanning electron microscope with EDX
  • Laser microscope
  • Various digital optical microscopes
  • Gravimetric / optical wear measurement
  • Topographic analyses (incl. roughness)
  • Optical porosity and phase fraction determination
  • Optical particle size measurement
  • Optical layer thickness measurement
  • Density measurement
  • Oil content measurement
Chemical analyses
  • Glow discharge mass spectrometry (GDMS)
  • Oxygen and nitrogen measurement
  • Carbon and sulphur measurement
  • Energy dispersive X-ray spectroscopy (EDX)
Thermal analysis
  • Differential scanning calorimetry (DSC)
  • Dilatometer measurements
  • Thermal structural stability
  • Thermal conductivity (LFA)
X-ray testing
  • Non-destructive testing of sintered components for pores and defects using X-rays
  • Dimensional and surface testing
Various measuring machines for exact determination of component dimensions
  • Length
  • Diameter
  • Contour
  • Roughness
  • Angle
  • Radius
  • Shape
  • Measurement of electrical conductivity
  • Cleanliness analysis