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3D Printing、MIM、HIP、Brazing、Spraying、Porous material、PM
CoCrMo cobalt-chromium-molybdenum alloy powder · Cobalt-based alloy powder
Biocompatibility · Wear and Corrosion Resistance · Specifically for Medical Implants/Additive Manufacturing 15-53μm / 15-45μm / 45-105μm
Process Advantages
Excellent biocompatibility
Compliant with ASTM F75 / ISO 5832-4 standards and clinically validated over the long term, it is suitable for use in orthopedic implants, dental implants, and other medical devices implanted in the human body.
Outstanding wear and corrosion resistance
High chromium and molybdenum content impart exceptional resistance to wear, corrosion by acids and alkalis, and seawater erosion, with wear resistance ranking among the highest.
Good high-temperature performance
It maintains high hardness and excellent oxidation resistance below 600°C, making it suitable for high-temperature aerospace components and energy‑related equipment manufacturing.
High strength and high toughness · High density
The as‑deposited material exhibits high tensile strength and good elongation, while the sintered product achieves high density with a dense, uniform microstructure.
Product Real-World Photos & Microscopic Morphology
15–53 μm powder SEM
High sphericity, narrow particle size distribution, and excellent flowability.
Real-life photos of the powder
Silver-gray powder, packaged in vacuum-aluminum foil bags or iron drums, with argon gas protection.
Medical implants / Aerospace components
Artificial hip joints, dental implants, turbine blades
CoCrMo cobalt-chromium-molybdenum alloy powder
CoCrMo alloy belongs to the Stellite family of alloys, with cobalt (Co) as its matrix. Chromium provides excellent corrosion resistance and oxidation resistance, while molybdenum imparts outstanding wear resistance and pitting‑corrosion resistance. Renowned for its superior biocompatibility, exceptional wear and corrosion resistance, and favorable high‑temperature performance, this alloy is designated as a medical implant material under ASTM F75. TIJO employs a non‑vacuum gas atomization process to produce spherical CoCrMo powder, which exhibits excellent sphericity, tightly controlled oxygen content, superb flowability, and high apparent density. It is suitable for processes such as selective laser melting (SLM), electron beam melting (EBM), powder metallurgy compaction and sintering, and cold spraying. The material finds extensive applications in medical implants—including artificial hip and knee joints and dental implants—high‑temperature aerospace components, corrosion‑resistant parts for energy‑related equipment, and highly wear‑resistant molds. It complies with both ASTM F75 and ISO 5832‑4 standards.
Corresponding grade
| Standard system | Corresponding grade |
|---|---|
| China GB/T | CoCrMo |
| American ASTM | F75 (Casting) |
| International ISO | ISO 5832-4 |
* Complies with ASTM F75 and ISO 5832-4 standards for cobalt-chromium-molybdenum casting alloys used in surgical implants.
Chemical Composition (wt%)
| element | Content range | ASTM F75 requirements | Note |
|---|---|---|---|
| Co | Margin (62–68%) | Margin | Matrix element |
| Cr | 26.0-30.0 | 27-30 | Corrosion resistance, oxidation resistance |
| Mo | 5.0-7.0 | 5-7 | Wear resistance, pitting resistance |
| C | ≤0.35 | <0.35 | Hardness and Wear Resistance |
| Yes | ≤0.10 | — | Deoxidizer |
| Ni | ≤0.50 | <0.5 | Residual elements |
| Fe | ≤0.75 | — | Impurity element |
| O | ≤400ppm | — | Low oxygen levels ensure sintering quality. |
* Complies with ASTM F75 and ISO 5832-4 standards. Medical-grade materials are subject to stringent controls on harmful impurities, such as cadmium and lead. Specific composition is subject to the batch‑specific test report.
Physical Properties & Mechanical Properties
Powder Physical Properties (15–53 μm)
| Parameter | Typical value |
|---|---|
| Loose packing density | ≥4.50 g/cm³ |
| Tap density | ≥4.87 g/cm³ |
| Hall velocity | ≤20 s/50g |
| Oxygen content | ≤300 ppm |
| Nitrogen content | ≤300 ppm |
| Sphericity | ≥95% |
Mechanical Properties (As-Deposited)
| Parameter | Typical value |
|---|---|
| Tensile strength | 1000±50 MPa |
| Yield strength | 800±50 MPa |
| Elongation | 30±2% |
| Density (dense state) | 8.3–8.9 g/cm³ |
| Melting point | 1320-1410℃ |
| Hardness | 20-35 HRC |
* Mechanical properties are typical values for the as-deposited or as-printed condition and may vary depending on the processing parameters and heat‑treatment state.
Particle Size Specifications & Selection Guide
| Particle size specification | Loose packing density (g/cm³) | Hall flow rate (s/50g) | Oxygen content (ppm) | Recommended Process | Typical Applications |
|---|---|---|---|---|---|
| 15–53 μm | ≥4.50 | ≤20 | ≤300 | SLM/LPBF laser printing | Medical implants, dental restorations, precision components |
| 15–45 μm | ≥4.50 | ≤20 | ≤300 | SLM/LPBF Fine Printing | High-precision complex structural components |
| 0-25μm | — | — | ≤400 | Powder metallurgy, MIM | Micro precision parts |
| 45–105 μm | ≥4.40 | ≤22 | ≤300 | EBM electron beam melting, powder metallurgy | Large implants, aerospace components |
| 75–150 μm | ≥4.30 | ≤25 | ≤300 | Powder metallurgy, hot isostatic pressing | Large-sized structural components |
* 15–53 μm is the standard recommended specification; other particle sizes are available upon request. Refer to the batch test report for specific details.
Additive Manufacturing Process Reference
| Process parameters | Recommended value | Note |
|---|---|---|
| Laser power | 115-200 W | Adjust according to equipment and powder characteristics. |
| Scanning speed | 550-900 mm/s | Adjust according to equipment and powder characteristics. |
| Layer thickness | 20-50 μm | Depends on powder particle size and equipment. |
| Protective atmosphere | High-purity argon gas | Prevent high-temperature oxidation |
* The CoCrMo alloy exhibits a relatively wide solidification range during SLM processing; therefore, it is recommended to optimize process parameters to achieve highly dense components. Post‑processing heat treatment can be employed, as needed, to enhance mechanical properties and improve microstructural homogeneity.
Typical application areas
Medical implants
Artificial hip joints, knee joints, shoulder joints, dental implants, bone screws, and dental crowns and bridges
Medical device
Surgical instruments and orthopedic implants exhibit excellent chemical stability in the human body.
Aerospace
Turbine blades, high-temperature fasteners, and engine components—stable below 600°C.
Energy equipment
Valves, pump bodies, and corrosion-resistant components for nuclear reactors—exhibiting excellent resistance to both corrosion and wear.
Additive manufacturing
Customized complex structural components, functionally graded materials, and biomedical scaffolds
Cutting tools/wear-resistant parts
Industrial cutting tools and wear-resistant components with outstanding wear resistance.
Mold manufacturing
High-wear-resistant injection mold and die-casting mold inserts, with high hardness and wear resistance.
CoCrMo vs. Related Alloy Powders
| Material Type | Key Features | Tensile strength (MPa) | Hardness | Corrosion resistance | Main applications |
|---|---|---|---|---|---|
| CoCrMo | Biocompatible, wear- and corrosion-resistant, with excellent high-temperature performance. | 1000±50 | 20-35 HRC | Excellent | Medical implants, aerospace, wear-resistant components |
| Ti6Al4V | Biocompatible and high specific strength | ≈900 | ≈36 HRC | Excellent | Orthopedic implants, aerospace |
| 316L stainless steel | Good corrosion resistance and low cost | ≈600 | ≈20 HRC | Good | Medical devices, structural components |
| Inconel 718 | Excellent high-temperature strength | ≈1300 | ≈40 HRC | Excellent | Aeroengines, gas turbines |
CoCrMo is the most widely used cobalt-based alloy in the biomedical field, boasting superior wear resistance among all implant materials and making it particularly well suited for high‑wear‑resistant applications such as load‑bearing joints.
Applicable Equipment and Model Selection
| Device brand | Compatible models | Recommended particle size |
|---|---|---|
| Renishaw | AM Series | 15–53 μm |
| EOS | EOSINT M Series | 15-45μm / 15-53μm |
| Concept Laser | M Line / M2 | 15–53 μm |
| 3D Systems | DMP Series | 15-45μm / 15-53μm |
| HuaShu High-Tech | FS Series | 15–53 μm |
| Polytect | S Series | 15–53 μm |
* The powder is compatible with various models of metal 3D printers; specific process parameters should be adjusted and optimized based on the equipment and powder characteristics.
End-to-end testing capability
Each batch of CoCrMo powder is analyzed for major elements (Co, Cr, Mo, C), impurities (Ni, Fe, Si), oxygen and nitrogen content, particle size distribution, flowability, loose and tapped densities, and sphericity. A Certificate of Analysis (COA) is provided.
Packaging & Delivery
Powder packaging
Vacuum-sealed in a double-layer aluminum foil pouch (to prevent oxidation), with an outer iron or plastic drum.
Specifications: 1 kg, 5 kg, 10 kg, 25 kg, 50 kg per drum
Export packaging
Export orders are packed in wooden crates or palletized and reinforced to protect against moisture and impact.
Compatible with sea, air, and international express shipping.
Delivery time
Standard particle size in stock; ships within 3–7 days after order confirmation.
Custom particle size or minor formulation adjustments: 7–15 days
Batch Traceability
For each batch, a sample is retained, and the COA report is shipped with the goods.
Supports third-party testing (e.g., SGS)
Free sample
Free samples are provided for process validation.
Small-batch samples; bulk supply upon quality confirmation.
Customized Services
Grain-size customization and fine-tuning of alloy composition
Meets special operating conditions and equipment requirements
Shipping documents
COA, MSDS, ingredient list, packing list
Meets export customs clearance requirements and customer in-plant inspection standards.
Technical Support
Provides process parameter guidance for SLM, EBM, and MIM technologies.
Assist in resolving issues encountered during use.
Inquire Now for Free Samples
Fill out the form on the right or contact us directly; we will provide product samples, technical data sheets, and price quotes to help you quickly complete your additive manufacturing process validation.
Address: No.39, Liandong Yougu lnd. Park, Bachelor Street,Changsha City,Hunan Province, China.
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Address: No.39, Liandong Yougu lnd. Park, Bachelor Street,Changsha City,Hunan Province, China.
