Bezinal® coated steel wire for medical springs -

Bezinal® coated steel wire for medical springs

Bekaert Bezinal® coated steel wire for medical springs
Discover the n° 1 alternative to stainless steel medical wires.  Bezinal® XP and Bezinal® XC are high carbon steel wires with an advanced zinc aluminum coating for smooth processability and a prolonged shelf life. Meeting FDA and EFSA quality standards, these wires are suitable for the production of medical springs.

Spring making made easy

> Production benefits

Excellent mechanical properties

Compared to traditional high carbon wires, Bezinal® XP and Bezinal® XC coated steel wires demonstrate improved material properties including a 17% higher e-modulus and a higher maximum solid stress (+6% for non-stressed and up to +9% for pre-stressed springs) when applying standard designs. Moreover, it’s generally accepted that (pre-coated) high carbon wire solutions exhibit better fatigue performance than stainless alternatives.  

As a result, these wires allow you to:

  • Meet tight tolerances
  • Produce smaller spring dimensions with higher spring rates
  • Maintain high accuracy and repeatability

Stable coating layers

Unlike galvanized wires, Bezinal® XP and Bezinal® XC wires have very stable coatings layers. These coatings create less flaking and dust during coiling and deformation, which leads to: 

  • A cleaner working environment 
  • Less machine cleaning 
  • Higher coiling speeds
  • Elimination of expensive post-coating processes


Made for medical devices

> Industry benefits

Bezinal® XP's superior corrosion and cathodic resistance, and Bezinal® XC's stable coating integrity means the wires provide excellent performance in medical application, where they can be used as high-performing alternatives to stainless-steel wire. The coatings’ excellent material properties and good processability meet the growing need for smaller, lighter and more complex medical springs.

Bezinal® XP and Bezinal® XC are not susceptible to pitting corrosion and are capable of protecting defects for a prolonged time. Compared to galvanized or phospated wires, Bezinal® XC coated wires last about 10x longer and Bezinal® XP wires up to 20x longer, without additional post-coating.



  • Supports complex designs
  • Easy to process
  • Prolongs shelf life
  • Suitable for the production of FDA and EFSA approved medical springs


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