Not every stainless steel is suitable for surgical instruments, and different instrument types call for different grades. Understanding the basics helps buyers compare quotations fairly.
Martensitic grades for cutting and gripping
Instruments that must hold an edge or spring back, such as scissors, forceps, needle holders and rongeurs, are generally made from hardenable martensitic stainless steels. Heat treatment gives them hardness and edge retention while keeping reasonable corrosion resistance.
Austenitic grades for non-cutting items
Items such as retractors, basins, and some holders are commonly made from austenitic stainless steels, which resist corrosion well and are not hardened by heat treatment.
Why finishing matters
Polishing and passivation remove surface impurities and improve resistance to staining and pitting. A smooth finish is also easier to clean and sterilise.
What to ask your supplier
- Which grade is used for each product family?
- Is the instrument hardened and tempered after forging?
- Is the finish satin, mirror or dull?
- Are products passivated before packing?
See examples in our surgical scissors and forceps and thumb forceps ranges, or read our buyer’s guide.