The application of stainless steel in the medical field is earlier than that of titanium. Stainless steel mainly accounts for a higher proportion in short-term implants, while titanium accounts for a higher proportion in long-term implants and applications with higher requirements for biocompatibility. Relatively high, especially in orthopedics, dental and cardiovascular equipment. In short, titanium is used more in high-end medical care. Why is this so? Here’s an explanation of the problem.
- GR5 ELI titanium alloy
- advantage:
- 1. Excellent biocompatibility:
- Titanium materials have good biocompatibility, which reduces the risk of allergic reactions and rejection with human tissues and bones. This is one of the key reasons why titanium materials are widely used in the medical field.
- 2. Low magnetism:
- Titanium materials are almost non-magnetic, which increases patient safety and ensures the clarity and accuracy of MRI images when some patients require magnetic resonance imaging (MRI). In addition, for long-term follow-up patients, the need for implants is eliminated. limitations that limit diagnosis.
- 3. Corrosion resistance:
- Titanium alloys exhibit extremely high corrosion resistance in body fluid environments, which not only reduces the risk of infection but also ensures that plants
- Not dissolved by body fluids thus extending the life of the implant.
- 4. High strength to weight ratio:
- GR5 ELI titanium alloy has high strength and low weight, which makes the implant lightweight and strong enough to reduce the burden on the patient.
- 5. Low temperature toughness:
- GR5 ELI titanium alloy maintains high toughness at low temperatures and is not prone to brittle fracture when subjected to impact or load.
- shortcoming:
- Higher cost:
- 1. Compared with stainless steel, titanium alloys have higher raw material costs and processing costs, making it more expensive to manufacture implants or medical devices.
- 2. Processing difficulty:
- Although titanium alloy has good processability, it is still more difficult to process than stainless steel and requires special equipment and processes, which may lead to a longer production cycle.
- 3.Welding difficulty:
- Titanium alloy welding technology requires high requirements, and the protective atmosphere needs to be controlled during the welding process to prevent oxidation and other adverse phenomena from occurring.
- Stainless steel
- advantage:
- 1. Lower cost:
- The raw material and processing costs of stainless steel are relatively low, making it suitable for mass production. Widely used in manufacturing various medical devices and implants
- 2. High strength:
- Stainless steel has high strength and is suitable for manufacturing equipment that can withstand large mechanical loads, such as orthopedic implants, surgical instruments, etc.
- 3Good processability:
- Stainless steel is easy to process and can be processed through conventional processes such as forging, milling, and welding. Its processing cost is low and production efficiency is high.
- 4. Strong wear resistance:
- Stainless steel has good wear resistance and can withstand frequent operations and wear and maintain good performance. Suitable for manufacturing devices and implants that require long-term use,
- shortcoming:
- 1. Higher density:
- The higher density of stainless steel makes implants heavier than titanium alloys, which can cause additional burden on the patient, especially for larger orthopedic implants.
- 2. Lower biocompatibility:
- Stainless steel contains elements such as nickel and chromium, which release metal ions and cause allergic reactions or rejection reactions in patients.
- 3. Corrosion resistance is not as good as titanium:
- Although stainless steel has certain corrosion resistance, in a body fluid environment, especially in an environment containing chloride ions, the corrosion resistance of stainless steel is not as good as that of titanium alloy, and pitting corrosion or stress corrosion may occur, affecting the service life of the implant. .
- 4. Magnetism:
- Some types of stainless steel are magnetic, which may affect certain medical tests (such as MRIs), limiting their use in patients requiring these tests.
Summarize:
GR5 ELI titanium alloy is more suitable for medical applications that require high strength-to-weight ratio, excellent biocompatibility and long-term stability, such as orthopedic implants, pacemaker casings, etc.
Stainless steel is widely used in various medical devices and equipment due to its low cost and good processability, especially suitable for cost-sensitive application scenarios.