Explore our foundational selection of surgical-grade titanium wire, rods, sheets, and custom-machined implant assemblies complying with ISO 5832 and ASTM specifications.
Hangzhou Retra Medical Co., Ltd. is a leading manufacturer of high-performance medical metals and orthopedic implants, specializing in Medical Titanium, Stainless Steel, CoCrMo, Tantalum, and Nitinol. With a strong commitment to research, development, and precision manufacturing, Retra Medical has become a trusted partner for hospitals, clinics, and medical device companies worldwide.
Our operational framework matches the elite quality indices required for critical bio-metallic applications, offering global distributors and medical institutions a direct pipeline to premium surgical materials that strictly meet and exceed international biocompatibility standards.
The company offers a comprehensive range of orthopedic and surgical implants, including joint replacement components, spinal systems, trauma plates and screws, maxillofacial reconstruction devices, and custom implant solutions. All products are manufactured using surgical-grade metals that ensure biocompatibility, durability, and corrosion resistance, meeting the stringent standards of the global healthcare industry.
Through our state-of-the-art CNC machining lines and ISO Class 7 cleanrooms, we bridge the gap between heavy metallurgy and micro-precision medical components.
Retra Medical emphasizes innovation and quality control, combining advanced production techniques with rigorous testing to ensure every implant delivers reliable performance and patient safety. The company also provides customized solutions tailored to specific clinical needs, supporting minimally invasive surgery, complex trauma repair, and long-term implant success.
Guided by the principles of "quality first, innovation-driven, customer-oriented," Hangzhou Retra Medical has earned an excellent reputation both domestically and internationally. With a dedicated R&D team, modern production facilities, and professional after-sales support, the company continues to advance the orthopedic and surgical implant industry, providing safe, high-quality, and reliable solutions that improve patient outcomes and support healthcare innovation worldwide.
Our structural commitment guarantees that 100% of our ISO 5832 and ASTM F136 titanium materials undergo ultrasonic testing, metallographic phase inspections, and rigorous chemical composition assessments prior to leaving our facilities.
ISO 5832 Compliance
Certified Facility
Exporting Countries
Tolerance Precision
Understanding the microstructural requirements, chemical bounds, and metallurgical evolutions of implant-grade titanium materials.
| Standard Designation | Material Type | Key Chemical Elements | Primary Medical Applications |
|---|---|---|---|
| ISO 5832-2 | Unalloyed Titanium (Grades 1-4) | Fe max 0.50, O max 0.40, H max 0.0125 | Dental implants, pacemaker cases, surgical mesh, bone screws |
| ISO 5832-3 | Wrought Titanium 6-Aluminum 4-Vanadium Alloy | Al 5.5-6.5, V 3.5-4.5, Fe max 0.25 | Hip/knee joint prostheses, spinal rods, intramedullary nails |
| ISO 5832-11 | Wrought Ti-6Al-7Nb Alloy | Al 5.5-6.5, Nb 6.5-7.5, Fe max 0.25 | Bone fixation plates, orthopedic screws, clinical joint components |
| ISO 5832-14 | Wrought Ti-15Mo-5Zr-3Al Alloy | Mo 14.0-16.0, Zr 4.0-6.0, Al 2.5-3.5 | High fatigue-resistant femoral stems and orthopedic applications |
Information Gain Insight: While ASTM F136 and ISO 5832-3 are frequently utilized interchangeably in commercial catalogs, ISO 5832-3 enforces slightly different mechanical fatigue and compositional validation tolerances. When sourcing for critical load-bearing joint designs or cardiovascular devices, verification against ISO 5832-3's specialized grain size indexes and microstructural alpha-beta transformation limits is vital to prevent in-vivo fatigue failure.
Our raw titanium ingots undergo multiple Vacuum Arc Remelting cycles to eliminate volatile contaminants, minimize segregation, and establish highly uniform ingot chemistry necessary for high fatigue-life implants.
Using thermo-mechanical processing routines, we control the dispersion of alpha and beta phases, resulting in fine equiaxed microstructure. This maximizes elongation and tensile limits.
Strict limitation of interstitial elements like Oxygen, Nitrogen, Carbon, and Hydrogen yields the enhanced ductility and fracture toughness demanded in critical medical designs.
How Retra Medical's ISO 5832 material program integrates into global surgical and restorative procedures.
Orthopedic surgeries demand implants that can endure millions of structural load cycles without cracking or showing signs of stress corrosion. Our ISO 5832-3 titanium rods and ASTM F136 bars serve as the standard choice for spinal fixation setups, trauma plates, and intramedullary nails.
By providing high yield strengths (up to 860 MPa) and high biocompatibility, these titanium formulations offer optimal mechanical properties that closely mirror the properties of natural human cortical bone, reducing the risks of stress shielding.
With an elastic modulus closer to bone than stainless steel alloys, implant-grade titanium decreases stress-shielding effects, promoting faster recovery and long-term implant stability.
Combining advanced machinery with strict quality verification processes to ensure secure supply chains for global medical device brands.
Equipped with advanced Swiss-type lathe platforms, we fabricate dental abutments and micro-screws to tight tolerances within ±0.005mm.
Every delivery includes comprehensive chemical composition analyses, heat treatment logs, tensile test summaries, and ultrasonic inspection files.
Our custom implant finishing routines take place within certified cleanrooms, minimizing biological load and organic residues prior to packaging.
Clear guidance for cross-border engineering teams and purchasing departments navigating medical-grade titanium supply chains.
To obtain market clearance (FDA 510(k), CE MDR EU 2017/745, or NMPA), medical device makers must prove complete feedstock traceability. Retra Medical's metal program provides full material traceability down to the raw melt pool.
Our compliance packages match international quality management systems, providing raw material certifications that meet testing parameters like ISO 10993 (biocompatibility) and ASTM F136 requirements.
Exporting critical materials requires dependable logistics handling. Retra Medical offers protected transit packaging (anti-tarnish and impact-resistant crates) to ensure that straight bars, thin wires, and fragile CNC dental implants arrive in pristine condition.
Our multi-lingual sales engineers coordinate directly with your R&D teams, offering engineering input on custom alloy modifications, temper designations, and custom dimensions.
In-depth answers to key technical questions from implant engineers, QA directors, and medical procurement leads.
Explore our secondary selection of specialized dental prosthetics, tantalum foils, nitinol wires, and medical-grade titanium sheet stock.
Retra Medical