Suspension spring wire

Suspension spring wire

Suspension spring wires are oil tempered or induction hardened chromium-silicon steel wires with a diameter ranging from 8 to 15.5mm. An oil tempered wire acquires its mechanical properties by heat treatment after it has been drawn to its final size. 

Tempering and annealing guarantees more uniform mechanical properties than simple cold drawing.

Our trade mark is Becrosi 37® and Becrosi 37 H® for higher tensile strength, according to EN10270-2 norm.


  • Homogeneous mechanical properties and surface
  • High impact resistance


Automotive Corner
Automotive suspension springs are the shock absorbers between wheels and rest of the vehicle.
They reduce unwanted noise and vibrations in the vehicle.
Bekaert is mainly active in the aftermarket (replacement and tuning).


Shape Wire
Bulk Material Other ferrous
Coating None
  • better together

    Situation We need a safe solution and huge monthly volumes

    Solution Via tests in the Bekaert lab, we worked out the required fiber mix with the lowest cost to serve our customers

    Result Cost efficiency must not be a compromise on quality

  • better together

    Situation You want to apply innovative solutions tailored to your projects

    Solution We analyze possibilities and come with economical solutions

    Result Save money and time during construction

  • better together

    Situation Want to create long aesthetical walls and avoid movement joints

    Solution Applying Brickforce® allows me to double my joint distance

    Result With Brickforce® masonry reinforcement I can create new and exciting masonry wall design

  • better together

    Situation Customer demand for compact boiler design through a total solution.

    Solution Joint development of an environment-friendly burner system.

    Result Customers improve their competitiveness.

  • better together

    Situation Skiers count on safety when they go up the mountain

    Solution In close cooperation Bekaert developed superior quality wires that meet the technical customer requirements of ropeway constructors

    Result The customer handles the production of the cables, but also on-site weaving (or splicing) and installation. The cables have a life expectancy up to 40 years