Laboratories

TO MAKE SURE DESIGN IS RIGHT

AND EACH PRODUCED PIECE PERFECTLY FITS

The proven quality of GHH-BONATRANS is related primarily to the quality of design and production and so testing equipment plays pivotal role in both phases. Having complete range of testing equipment in-house we are proud and happy to offer our customers higher flexibility and lower costs to ensure all tests in compliance with regulation and customer requirements.

GHH-BONATRANS has fully ILAC certified mechanical, metallographic, non-destructive and fatigue testing facilities. We also cooperate with a number of renowned testing and research laboratories and institutes.

BONATRANS metallurgical testing laboratory is certified to EN ISO/IEC 17025:2005 as a separate and independent testing laboratory. Besides provision of services to GHH-BONATRANS itself, the laboratory also offers its services to external customers.


Tests

MECHANICAL TESTS

Verification of mechanical properties of (our) products.

  • Brinell hardness test
  • Vickers hardness test
  • Rockwell hardness test
  • Impact bending test
  • Tensile test
  • Fracture toughness test
  • Drop weight test (non-accredited test)
  • Bending test (non-accredited test)

METALLOGRAPHIC TESTS

Verification of the structure and purity of the material of (our) products.

  • Baumann test
  • Etching test
  • Determination of apparent grain size - comparison method
  • Determination of share of structural components
  • Determination of microcleanness
  • Determination of microstructure (non-accredited test)

NON-DESTRUCTIVE TESTS

These tests check that the products do not include any surface or internal defects.

  • Ultrasonic test
  • Magnetic test
  • Eddy-current testing - for hollow axle (non-accredited test)


FATIGUE TESTING

Verification of material behaviour under dynamic loading including resistance of coating according to the standards for the railway industry.

  • Wheel fatigue test
  • Axle fatigue test
  • Wheelset fatigue test
  • Assessment of coating resistance to cyclic mechanical load
  • Assessment of coating resistance to impact
  • Assessment of coating resistance to gritting
  • Test of stiffness of rubber elements (non-accredited test)
  • Laboratory heat treatment (non-accredited test)

CHEMICAL TESTS

Determination of C, Mn, Si, P, S, Cr, Ni, Cu, Mo, V, B, Ti, Zr, Co, W, Nb, As, Pb, Sn, Al by optical emission spectrometry method.