Reinforcement tubes

Jansen produces welded tubes and profiles for use as structural reinforcements in automotive engineering. Tubes made of high-tensile materials are also used. Applications within this automotive industry segment are very sensitive to quality and component failure in the event of a crash may have severe consequences. The tight production tolerances and identical processing properties guarantee efficient and thus cost-effective tube processing during component production. The use of new, modern air hardening steel materials enables a striking reduction in effort and thus costs for component tempering.


  • Excellent ductility
  • High levels of fatigue strength
  • High levels of strength and hardness as per Q+T
  • Excellent surface-finish condition

Material properties

  • High levels of fatigue strength
  • Excellent reforming properties
  • Homogeneous strength properties and ductility
  • Excellent hardening properties
  • Potential to reduce wall thickness


  • Homogeneous, fine-grain structure (weld seam and basic material)
  • Minimised surface decarburisation of inner and outer surfaces (< 100 µm, < 50 µm)
  • Excellent weld seam quality
  • Excellent reforming properties


  • Minimised fluctuations in wall thickness and inner/outer diameter
  • Minimised deviations in roundness and linear movement
  • Minimised eccentricity
  • Tube end processing: sawn/brushed; chamfered


  • Excellent surface condition thanks to tube drawing
  • Minimised surface irregularities (adhesions, scratches, dents, etc.)
  • Minimised corrosion protection, optionally specific corrosion protection
Reinforcement tubes