Tubes for steering

Jansen produces welded and weld-drawn tubes and profiles made of standard materials as well as high-tensile materials. Applications in steering engineering is very critical in terms of quality.  The tubes' tight tolerances guarantee easy component production. The use of modern, high-tensile materials enables additional weight savings by reducing wall thickness while maintaining components' strength.

Requirements

  • Excellent ductility
  • High torsional strength and durability
  • Excellent welding properties
  • High geometrical accuracy
  • Excellent surface-finish condition

Material properties

  • High torsional strength and fatigue strength
  • Excellent reforming properties
  • Homogeneous strength properties and ductility
  • Excellently suitable for welding
  • Potential to reduce wall thickness

Structure

  • 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

Geometry

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

Surface

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