Description
๐ Product Overview
The CoCrMo Alloy (Cobalt Chromium Molybdenum) Sheet is a flat-product enquiry listing. Specify the required alloy, dimensions, material condition and application acceptance criteria. ASTM F1537 Alloy 1 and UNS R31537 are material references to verify for the order: the published ASTM F1537 scope is for wrought bar, rod and wire, so agree the sheet-specific acceptance requirements and supporting batch analysis.
For this CoCrMo Alloy, properties depend on the grade, material condition, surface and manufacturing route. The balance of cobalt (Co), chromium (Cr) and molybdenum (Mo) is assessed against the ordered chemical and mechanical requirements; a finished medical device requires its own design and biological evaluation.
๐งช Chemical Composition (Catalogue Reference)
| Element | Symbol | Typical Content (%) | Function in Alloy |
|---|---|---|---|
| Cobalt | Co | Balance (~60%) | Provides strength, corrosion resistance, and wear resistance |
| Chromium | Cr | 26โ30% | Forms a passive oxide layer for excellent corrosion resistance |
| Molybdenum | Mo | 5โ7% | Enhances pitting resistance and improves strength in chloride environments |
| Carbon | C | 0.35% max | Increases hardness and wear resistance |
| Nickel | Ni | โค1% | Improves toughness |
| Iron | Fe | โค0.75% | Minor impurity control |
| Silicon | Si | โค1% | Improves oxidation resistance |
| Manganese | Mn | โค1% | Strength and deoxidation |
| Nitrogen | N | โค0.25% | Grain refinement and hardness increase |
The composition table is a catalogue reference, not a certified Alloy 1 acceptance range. Confirm the ordered grade and carbon class, applicable flat-product criteria and batch analysis before acceptance.
โ Mechanical Properties (Typical at Room Temperature)
| Property | Value | Standard Reference |
|---|---|---|
| Tensile Strength | โฅ 1000 MPa | ASTM E8 |
| Yield Strength (0.2% offset) | โฅ 827 MPa | ASTM E8 |
| Elongation | โฅ 8% | ASTM E8 |
| Hardness | 25โ35 HRC | ASTM E18 |
| Modulus of Elasticity | ~ 210 GPa | ASTM E111 |
| Density | ~ 8.3 g/cmยณ | ASTM B311 |
The mechanical values for CoCrMo Alloy sheets are catalogue references. Agree the material condition, testing method and acceptance criteria for the ordered flat product, then verify the supplied batch results.
๐ก Key Advantages of CoCrMo Alloy Sheet
โ 1. Superior Wear Resistance
Define the sliding contact, surface finish and wear-testing requirements for the intended component, and assess the ordered alloy and condition against those requirements.
โ 2. Outstanding Corrosion Resistance
Chromium contributes to passivation; evaluate corrosion performance for the ordered grade and surface condition in the actual saline, biological or sterilization environment.
โ 3. Biological Evaluation
For CoCrMo Alloy, the finished-device manufacturer evaluates biological response, surface condition and processing residues for the intended contact. Specify any required ion-release testing and biological evaluation with the material and manufacturing requirements.
โ 4. High Fatigue Strength
Specify the loading spectrum, material condition and required fatigue assessment for cyclic applications. Use the ordered batch results and finished-component validation when selecting the material.
โ 5. Material and Device Assessment
CoCrMo materials have implant-manufacturing applications. For this sheet enquiry, confirm the raw-material requirements and evaluate the finished device for its intended use, manufacturing route and surface condition.
๐ฉบ Applications
For CoCrMo Alloy Sheets, the following are application-enquiry examples. Confirm the required alloy, product form and finished-component validation for each design:
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Orthopedic Implants โ Hip and knee joint replacement components, spinal fixation plates, trauma fixation devices.
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Dental Prosthetics โ Crowns, bridges, partial denture frameworks.
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Cardiovascular Devices โ Stents, valve components, pacing leads.
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Surgical Instruments โ Blades, forceps, cutting tools requiring high wear resistance.
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Veterinary Implants โ Orthopedic plates, pins, and prosthetic devices for animals.
๐ฌ Manufacturing Process
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Vacuum Induction Melting (VIM) โ If this route is required, specify it in the enquiry and confirm the quoted melting route and batch inspection documents.
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Vacuum Arc Remelting (VAR) โ Identify any remelting and cleanliness requirements, and confirm the actual route and inspection evidence for the ordered batch.
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Hot Rolling & Annealing โ Specify the sheet condition and any grain-structure or mechanical acceptance requirements for the selected process.
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Precision Machining โ Provide the drawing and required tolerances, and confirm the machining and inspection requirements for the order.
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Surface Finishing โ State the required polished or satin finish and any application-specific surface acceptance criteria.
๐ Available Dimensions
| Thickness | Width | Length | Tolerance |
|---|---|---|---|
| 0.5 mm โ 10 mm | Up to 1000 mm | Custom lengths | ยฑ0.02 mm |
Custom sizes, shapes, and pre-machined blanks available on request.
The following thermal values are catalogue references. Confirm the required test conditions and operating environment for the ordered grade and supplied material condition.
๐ก Thermal Properties
| Property | Value |
|---|---|
| Melting Range | 1330โ1400ยฐC |
| Specific Heat | 0.42 J/gยทK |
| Thermal Conductivity | ~ 14 W/mยทK |
| Thermal Expansion Coefficient | 13.8 ฮผm/mยทK |
๐ก Corrosion Performance in Biological Environments
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Specify any pitting and crevice corrosion assessment needed in the intended simulated body-fluid environment.
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For exposure to phosphate-buffered saline at 37ยฐC, agree the exposure duration, material condition and mechanical acceptance criteria, and verify the required test evidence.
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For steam sterilization cycles, specify the cycle conditions and required surface, corrosion and mechanical acceptance tests for the finished component.
๐ Quality Assurance
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Material References: ASTM F1537 and ISO 5832-12 cover specified wrought alloys in bar, rod and wire forms; agree the appropriate sheet requirements and ordered grade separately.
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Inspection Documents: Specify the required Mill Test Certificate (EN 10204 3.1), and confirm its availability and batch identification with the quotation.
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Inspection: Specify any 100% dimensional and surface finish inspection requirement and confirm the agreed inspection scope before shipping.
๐ฆ Packaging & Delivery
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Cleanroom Packaging โ State any cleanliness and packaging-control requirements and confirm the agreed packing method for the manufacturing application.
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Moisture-Proof Wrapping โ Specify transit protection and storage requirements and confirm the packing method with the quotation.
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Secure Wooden Crates โ Suitable for air and sea transport.
๐ Authoritative References
Ordering Information and Related Materials
For a sheet quotation, provide thickness, width, length or drawing, quantity, selected alloy designation, material condition, flatness and surface requirements, applicable flat-product acceptance criteria and required batch inspection documents. Send the drawing or material requirements through our Contact page.
Browse cobalt materials, cobalt plates and sheets, or compare wrought CoCrMo bar when a bar-form specification is required.
๐ Contact Us
๐ง Email: sales@niticu.com
๐ฑ Phone / WhatsApp / WeChat: +86 13335373172
๐ญ Factory: Baotai Road Industrial Park, High-tech Zone, Baoji City, Shaanxi, China
๐ Website: https://niticu.com
๐ฉ Contact us now for pricing, samples, and expert technical support โ we respond within 24 hours.

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