At a glance

Technical data

Georgsmarienhütte GmbH produces steel bars in compliance with the highest standards of the automotive supplier, mechanical engineering and capital goods industries.

In the rolling mill precision roller units produce steel bars with extremely precise tolerance according to the Kocks system. The material is produced with individually-required material properties - according to customer needs - with optional heat treatment.

Rolled Range
  • Rounds to DIN EN 10060 Table 1:
    20 to 126 mm diameter
  • Special tolerances (up to 1/4 DIN EN 10060, normal):
    20 to 126 mm diameter
  • Rounds to DIN EN 10060 Table 2

In the 23 to 126 mm product range the rounds include sizes to DIN EN standard.
Other sizes are available by arrangement.

Delivery Lengths
  • 6 to 10m
  • Other lengths by arrangements
  • Short lengths > 100 mm by arrangement
End finishes
  • Abrasively cut
  • Chamfered (for 23 to 100 mm diameter) by arrangement
  • Straight as rolled, to DIN EN 10060
  • Straightened
Flaw detection
  • Ultrasonic inspection
  • Eddy current testing
  • Identity inspection
Surface finishing
  • Rolled
  • Shot-blasted
  • Rough-peeled: tolerance > h12 for 21.5 to 120 mm diameter
  • Rough-ground: tolerance > h12 for 25 to 100 mm diameter
Type Basic form (ingot/ continuous casting)


Heat treatment

  • Treated for cold sawing (SAW)
  • Stress-relief annealing (+SR)
  • Treated for cold shearing (+S)
  • Normalised (+N)
  • Soft annealing (+A)
  • Quenched and tempered (water or air hardening) (+QT)

Contact person

Marco Altenhöfer

Head of Sales at GMH Blankstahl GmbH