What Is Surgical Stainless Steel?

Surgical alloys are used in the medical field, mainly in medical devices and processes. The medical procedure is mainly used for surgical joining and acts as a stent. Commonly used alloys are shape memory alloys, titanium alloys, platinum alloys, brass alloys, and nickel-titanium alloys.

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The medical use of industrial pure titanium is specified in the West German standard, the American ASTM standard, and the British titanium alloy. The American ASTM F 67 standard specifies the specifications of industrial pure titanium for surgical transplants (including its chemical composition and mechanical performance requirements). .

In the West Germany material standard, the use instructions clearly indicate the characteristics of the material and its medical use. In the corresponding British IMI industrial pure titanium use instructions, it also points out its medical use. These are China's industrial The application of pure titanium provides experience.

From the perspective of materials, China's current industrial pure titanium TA1, TA2, TA3 can completely replace similar foreign materials, and it is not necessary or impossible to imitate.

3.7034 alloy has medium strength, high corrosion resistance and excellent formability. It is used in aircraft skeletons and skins. The chemical industry requires 3 parts with medium strength and the best formability, as well as chemical industry, desalination and marine parts, plates. Heat exchangers, cold-spinned or stamped parts, platinum-plated anodes, etc.

3.7055 alloy has high formability, weldability and corrosion resistance, and is used in aircraft skeletons, aircraft engines, marine or chemical industry parts, heat exchangers, refrigeration devices and evaporator tubes, etc.

3.7064 alloy has good formability, corrosion resistance and high strength, and is used in chemical industry, marine parts, aircraft skeletons and aero engine parts, as well as surgical inserts, high-speed fans, gas compressors, etc.

3.7114 Weldable, medium formability, medium strength.

3.7124 It has the ductility and weldability and high temperature strength of industrial pure titanium. It is used for parts below 350 ~ C and chemical industry corrosion-resistant parts.

3.7134 has a small specific gravity and a high elastic modulus, and has important applications in the aviation industry, such as compressor discs and blades working below 450 ~ C.

3.7144 Aircraft engine rotors and blades for operation below 450 ° C.

3.71 54 alloy has high strength and creep resistance. It can be welded and used for long-term working parts below 500 ~ C, such as some parts of high-pressure compressors for aviation engines.

3.7164 alloy has good comprehensive performance and is used for high stress mechanical parts working below 350 ~ C.

3.71 74 is a high strength titanium alloy with good heat treatment and forging properties.

3.7184 Engine parts and components such as compressor discs and blades for work below 400 ~ C.

LT32 alloy has high strength and good hardenability, and is used in aircraft skeletons, missile forgings, etc., working under 427 ~ C.

LT41 alloy has excellent formability and can be heat treated for advanced aircraft skeletons, light-weight welded pressure vessels, aircraft skeleton skins, honeycomb structures, high-strength fasteners, aircraft parts, etc.

IMI 1 25 are all industrial pure titanium, they have good corrosion resistance and high specific strength in many natural and artificial environments. Has a good fatigue limit, usually used in the annealed state.

IMI 130 forged performance low carbon steel or 18-8 stainless steel. Some common methods of processing stainless steel can be used for forging, forming and welding. Can be forged billets, plates, bars, wires, etc. ^[2]

Surgical alloys are used in the medical field, mainly in medical devices and processes. The medical procedure is mainly used for surgical joining and acts as a stent. Commonly used alloys are shape memory alloys, titanium alloys, platinum alloys, brass alloys, and nickel-titanium alloys.

The adoption of international standards and advanced foreign standards is an important technical policy of our country, and it is also a necessary condition for China's economic development and joining the international economic cycle. As an enterprise standard, we should actively adopt international standards and advanced foreign standards in the formulation and revision of standards.

We believe that the selection of dental implants using TA2 materials in China is appropriate. In foreign reports on medical titanium alloys, adverse human reactions caused by the use of titanium alloys have not been seen. Therefore, it is feasible to use TA2 titanium alloy in dental implants ^[3] .