Qualification and authorisation

Hartung GmbH stands for high level, certified quality.

We provide a certified factory production control system (FPC) according to DIN EN 1090-1:2009+A1:2011 / EXC3.

» Certificate factory production control system (PDF)

Furthermore we hold the manufacturer's qualification for structural steelwork welding according according to DIN 1090-2:2008+A1:2011 EXC3, including the following extensions:  

  • Crane DIN 15018
  • Crane tracks DIN 4132
  • Antenna supporting structures DIN 4131
  • Steel bridges DIN FB 103
  • Composite bridges DIN FB 104

» Welding certificate

We are certified by „DVS Zert“ for having a routinely functioning quality management system according DIN ISO 9001 : 2008.

» Certificate ISO 9001 : 2008

Furthermore we apply a certified occupational safety management system, which is developed in close cooperation with industrial injury mutual insurance organisation for wood and metal works.

» Certificate occupational safety management

The company is a certified production plant for Pressure Equipment in accordance to European Pressure Equipment Directive 97/23/EG on the basis of the AD 2000 HP0.

» Certificate Pressure Equipment (PDF)

The company employs TÜV certified welders and European Welding Engineers. The execution of welding work is monitored by welding engineers. Our welders comply with the following Euronorm standards: :

Steel construction

  • EN 287-1 111 P BW 1.2 B t 15 PE ss nb
  • EN 287-1 111 P FW 1.2 B t 15 PD ml
  • EN 287-1 135 P BW 1.2 S t 15 PF ss nb
  • EN 287-1 135 P FW 1.2 S t 15 PF ml
  • EN 287-1 136 P BW 1.2 R t 15 PF ss nb
  • EN 287-1 136 P FW 1.2 R t 15 PD ml


Pipeline construction

  • EN 287-1 141 T BW 1.2 S t05.0 D60.3 H-L045 ss nb
  • EN 287-1 141 T BW 1.2 S t02.0 D21.3 H-L045 ss nb
  • EN 287-1 111 T BW 1.2 B t12 D108 H-L045 ss nb