Kirurginteräs

Kirurginteräs is a Swedish term that translates to surgical steel. It is not a specific alloy but rather a designation for a group of stainless steels that are suitable for medical and surgical applications. These steels are chosen for their biocompatibility, corrosion resistance, and ability to be sterilized.

The primary characteristics of surgical steel include a high chromium content, which forms a passive oxide layer on the surface, protecting against corrosion and rust. Other elements like nickel and molybdenum are often added to enhance specific properties such as strength and resistance to pitting. The exact composition of surgical steel can vary depending on its intended use, but it generally adheres to international standards for medical-grade stainless steel, such as ASTM F-138 or ISO 5832.

Surgical steel is widely used in the manufacturing of surgical instruments, implants like joint replacements and pacemakers, and body jewelry. Its non-reactive nature minimizes the risk of allergic reactions or rejection by the body, making it a safe choice for prolonged contact with tissues. The ability to withstand repeated sterilization processes, such as autoclaving, is also crucial for maintaining aseptic conditions in surgical environments. While often referred to generally, specific grades of stainless steel are selected for different medical purposes.