Zertifiziert nach DIN EN ISO 9001:2008

Hard chrome plating means for YOU:

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Hard chrome plating is still a forward-looking process for the production of the highest surface qualities for low-friction, low-wear manufacturing operations to reduce your costs . With its high surface hardness, hard chrome plating helps increase service life by reducing wear. It provides corrosion protection, prevents adhesion and prolongs the service life of gloss qualities.

It also has a low coefficient of friction and improves thermal stress stability. Its worth has likewise been demonstrated for the refurbishing of workpieces that are damaged, worn or with dimensions smaller than specified. We offer our customers a very wide range of product-specific processes. Some of the special electrolyte baths used in these processes achieve a chrome hardness of up to 1100 HV 0.1.

All the metals and their alloys currently used in mechanical and plant engineering can be hard-chromed by us, e.g.:

  • plain carbon steels
  • high-alloy hardened steel
  • stainless steels and carbon steels
  • cast steel
  • gray cast iron
  • ductile cast iron
  • titanium
  • copper
  • brass
  • bronze
  • all aluminium alloys

Physical Properties of Chrome:

High degree of hardness – low adhesion – low friction – better thermal characteristics

Typical results of a mixed acid electrolyte

Property Value Unit
Thermal conductivity 69,069 J/(m s k)
Magnetic susceptibility 2,6 10-6 cm3/g
Linear coefficient of thermal expansion 6,6 10-6 1/K
Modulus of elasticity 132,4 to 156,9 GPa
Tensile strength 98 to 390 Mpa
Adhesion to steel over 1000 N/mm2

Dimensions

Diameter in mm Overall length in mm Width in mm Weight in kg
up to 1500 13.000 10.000
up to 3400 5.900 40.000
plates up to 8.800 2.880 10.000

Higher weights and larger dimensions on request.

We will be happy to carry out any grinding, polishing or welding work required.

Useful preparation before hard chroming:

To avoid unnecessary preparatory, intermediate or reworking steps and therefore additional costs for you within the hard chroming process, the following remarks should be noted for your planning and preparations:

  • ensure good access to the surfaces to be chromed
  • avoid sharp edges and corners if possible
  • the uniformity of the coating structure improves with the size of the radii
  • welds in the surface to be chromed are to be free from pores and cracks
  • pre-polish or pre-grind surfaces to be chromed
  • avoid pores, cracks, scratches, grooves or other faults in the material since these will not be covered or filled by the chrome layer
  • allow enough time for processing since certain hard chroming and grinding processes cannot be shortened without loss of surface quality

Tips for satisfactory collaboration.

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