Overview INTRODUCTION
Overview INTRODUCTION Page 3 WHO MANUFACTURES WHAT ? Page 4 MARTENSITIC STAINLESS STEELS Page 6 AUSTENITIC STAINLESS STEELS Page 7 QUALITATIVE OVERVIEW OF THE PERFORMANCES STEEL BY STEEL Page 8 HARDNESS Page 9 CORROSION RESISTANCE Page 9 BENDING RESISTANCE AND DUCTILITY COMPORTMENT Page 10 TAPER POINT NEEDLES GENERAL RECAP Page 11 2
About the Steel in our needles Nowadays, all over the world, the production of surgical needles is usually made of stainless steels. A stainless steel means a steel containing chromium (Cr). The main function of this chromium addition is to increase the corrosion resistance of the steel. Surgical needles have complicated shape and should present the best compromise between higher final strength, no breakage during use, good attaching for the suture thread and good constant penetration in the tissues. In order to manufacture surgical needles, we can find 2 main stainless steels families: Martensitic Austenitic 3
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