When you choose medical cobalt-based alloy artificial joint castings, you’re balancing three things: Ermüdungsfestigkeit, Verschleißfestigkeit, und regulatory safety. I design and supply CoCrMo alloy castings specifically for orthopedic implant manufacturers and medical OEMs that have to hit tight performance targets and strict standards in the US and global markets.
What Buyers Are Really Looking For
Most engineers and sourcing teams searching for CoCrMo alloy castings or ASTM F75 artificial joints are trying to solve one of these problems:
- Benötigen reliable, repeatable cobalt-chrome orthopedic implants that pass validation and regulatory review
- Need a qualified investment casting partner that understands medical-grade requirements, not just industrial casting
- Benötigen clear technical data: chemistry, mechanical properties, and biocompatibility proof, not marketing claims
My focus is on medical grade CoCr castings für:
- Orthopedic implant manufacturers
- Medical device OEMs
- Auftragsfertiger building hip, knee, shoulder, and ankle systems for major brands
Role in Artificial Joint Systems
Cobalt-chrome (CoCrMo) castings are typically used in the high-load, articulating components of joint replacement systems, where failure is not an option:
- Femoral condyle casting for total knee arthroplasty
- Femoral neck casting und hip prosthesis CoCrMo components for total hip systems
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- Korrosionsbeständigkeit: strong passive film in chloride-containing body fluids, resisting pitting and crevice corrosion
- Wear performance: excellent wear resistance against UHMWPE, ceramics, and other CoCrMo surfaces, supporting long-term THA and TKA service life
For femoral condyle, femoral neck, double-jointed acetabular cup, and ankle joint components, this combination of chemistry, mechanical strength, and in‑body wear behavior is exactly what I optimize for long-term implant performance.
Product types and artificial joint components
Femoral condyle cobalt alloy castings
We supply precision femoral condyle CoCrMo alloy castings for knee joint implants, with smooth articular surfaces designed for ultra-low wear against UHMWPE inserts. Our medical cobalt-based alloy artificial joint castings are produced by investment casting for tight tolerances, consistent radii, and stable fixation features that match your instrument sets and cementing techniques.
Femoral neck and hip prosthesis CoCrMo parts
For hip systems, we provide femoral necks, heads, and proximal bodies in medical-grade cobalt-chrome-molybdenum. These hip prosthesis CoCrMo parts are engineered for high fatigue strength, stable taper connections, and long-term corrosion resistance in modular THA designs. We can match your existing stem geometries or help optimize new profiles for U.S. patient anatomy.
Double-jointed acetabular cups and hip socket components
We cast double-jointed acetabular cups and hip socket components with precise inner geometry for liners and locking mechanisms. Our cobalt-chrome orthopedic implants deliver hard, wear-resistant bearing surfaces for metal-on-poly or metal-on-ceramic constructs, and we support custom hole patterns, anti-rotation features, and porous or roughened regions ready for coating.
Ankle joint prosthesis cobalt-based alloy castings
For ankle replacements, we produce talar and tibial CoCrMo alloy castings with complex contours and stable fixation platforms. These ankle joint prosthesis alloy components focus on smooth articulation, resistance to edge loading, and reliable performance under demanding gait cycles typical of active U.S. patients.
Custom cobalt-chrome components for multiple joints
Beyond standard hip and knee, we support custom cobalt-chrome components for shoulder, elbow, small joint, and trauma-adjacent applications. Whether you need a new femoral condyle casting family, a unique hip geometry, or matched sets for multi-joint systems, we offer OEM-grade engineering support, including integration with our chromium-cobalt-molybdenum machining service for hip joint components to deliver near net-shape or fully finished parts.
Manufacturing Process for Medical Cobalt-Based Alloy Artificial Joint Castings
Precision investment casting for complex CoCrMo implants
For our medical cobalt-based alloy artificial joint castings, we rely on precision Feinguss (Verlorene-Wachs-Guss) to hit tight tolerances and complex geometries like femoral condyles, femoral necks, double-jointed cups, and ankle joint components. Wax patterns, ceramic shells, and controlled burnout let us produce thin sections, smooth contours, and undercuts that would be costly or impossible with traditional machining alone. You can see a similar approach in our broader Präzisionsgussdiensten, adapted here specifically for medical CoCrMo alloys.
Vacuum melting, pouring, and solidification control
Wir verwenden vacuum melting and controlled pouring to keep gas, inclusions, and contamination to a minimum—critical for cobalt-chrome orthopedic implants. Key controls include:
- Strict alloy charge management and clean raw materials
- Vacuum or inert atmosphere melting for consistent chemistry
- Controlled mold preheat and pour temperature for sound filling
- Managed cooling rates to refine microstructure and reduce porosity
This gives us stable CoCrMo alloy properties from heat to heat, ready for ASTM F75–compliant applications.
Dimensional accuracy and machining allowance
Our tooling and process control are built around medical OEM expectations in the U.S.:
- High dimensional accuracy right out of the mold
- Near-net-shape castings to cut machining time and cost
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cURL Too many subrequests. cURL Too many subrequests.. We support OEMs with:
- Tight-tolerance mating surfaces for modular junctions
- Custom geometries for complex reconstructions
- Consistent alloy chemistry and mechanical performance across product lines
This gives U.S. orthopedic manufacturers the flexibility to design patient-matched and modular systems while maintaining reliable, scalable CoCrMo casting supply.
Quality Assurance for Medical Cobalt-Based Alloy Artificial Joint Castings
When you buy medical cobalt-based alloy artificial joint castings from us, you’re getting parts built under a tight, medical-grade quality system designed for U.S. orthopedic OEMs.
ISO 13485 Medical Quality System
We run production under an ISO 13485–aligned quality management framework for medical device components, including:
- Documented process control from wax pattern to finished CoCrMo casting
- IQ/OQ/PQ for critical equipment and processes
- Full lot-level control to support your device DMR/DHR requirements
For additional metal material categories, we apply similar controls to our high-performance alloy and stainless steel products, so the approach is proven and scalable.
Full Heat and Batch Traceability
Every cobalt-based alloy heat and batch is traceable:
- Unique heat number tied to melt, pour, and inspection records
- Traceability from raw material to final machined casting
- Long-term digital record retention for audits and FDA submissions
You always know exactly which heat went into which femoral condyle, femoral neck, double-jointed cup, or ankle joint component.
Mechanical, Chemical, and Metallurgical Testing
We back our CoCrMo alloy castings with complete test data:
- Chemische Analyse to ASTM F75 and customer specs
- Mechanische Prüfung: tensile, yield, elongation, hardness, and fatigue on representative samples
- Metallurgical evaluation: microstructure, porosity, inclusion rating, and grain size
Third-party or customer-witnessed testing is available, and we can align with your internal validation plans. More on our testing discipline can be seen in our dedicated testing and quality workflow.
Regulatory and Documentation Support for OEMs
We make it easier for your regulatory and quality teams to do their jobs:
- Mill test reports (MTRs), certificates of conformance (CoC), and full test reports
- Material and process documentation to support FDA 510(k), PMA, and EU MDR submissions
- Support for PPAP, FAI, and custom control plans for critical joint replacement components
You get medical grade CoCrMo alloy castings with the documentation, traceability, and quality backbone needed for serious orthopedic brands in the U.S. market.
Key benefits of medical cobalt-based alloy artificial joint castings
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| Ultimate tensile strength | 655–900 MPa (95–130 ksi) |
| Yield strength (0.2%) | 450–690 MPa (65–100 ksi) |
| Elongation | ≥ 8–12% |
| Härte | 25–35 HRC (customizable by heat treat) |
| Dichte | ~8.3 g/cm³ |
Sie erhalten:
- Material datasheets (PDF)
- Chemical composition reports per heat
- Mechanical property test summaries
- Corrosion and wear test data on request
CAD models & design support for CoCrMo implants
For femoral condyle, femoral neck, double-jointed acetabular cups, and ankle joint prosthesis castings, we support your design teams with:
- 3D CAD files (STEP, IGES, Parasolid) of our standard casting envelopes
- Recommended casting draft, radii, and wall thickness guidelines
- DFM feedback to reduce machining time and cost
- Early-stage design reviews for new hip and knee prosthesis platforms
Our team is used to working with US-based engineering groups that need quick design iterations and clear tolerance stacks.
Case studies, performance & clinical reliability
We share evidence-based data to help your regulatory, marketing, and clinical teams:
- Wear and fatigue test reports for CoCrMo hip and knee components
- Case summaries of long-term performance in THA and TKA systems
- Comparative data versus other alloys (e.g., stainless, Ti alloys)
- Process capability data (Cp/Cpk) for critical implant dimensions
For buyers who source other metals as well, we can align our material reporting with your existing systems for alloys like those used in high-performance bronze components.
OEM partnership, customization & engineering collaboration
We operate as a long-term OEM partner, not just a casting supplier:
- Custom tooling & fixtures for your proprietary hip, knee, shoulder, and ankle systems
- Co-development of new CoCrMo components with joint design and casting feasibility in mind
- Dedicated project engineer for each major OEM platform
- NDA-backed collaboration for design, process windows, and cost-down projects
You get fast response times, controlled change management, and documentation ready for FDA submissions and ISO 13485 audits.
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- Mechanical and chemical test reports available for each batch (tensile, hardness, microstructure, chemistry)
We also support OEMs with documentation packages to help with FDA and other regulatory filings.
What documentation do you provide with CoCrMo joint castings?
On request we can provide:
- Material certificates (ASTM F75 compliance, chemistry, mechanicals)
- Dimensional inspection reports and NDT records
- Process and lot traceability data, aligned with your DMR/DHF needs
How do I start a custom orthopedic casting project with you?
Senden Sie uns:
- 3D CAD (STEP/IGES) and 2D drawings with tolerances
- Target material spec (ASTM F75 CoCrMo) and surface finish
- Expected annual volume and launch timeline
We’ll come back with:
- Design-for-casting feedback
- Estimated tooling cost and per-piece pricing
- Lead time, MOQ, and quality/validation plan tailored to your program.
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