Medical Grade Alloys
Vitallium Alloy
PML’s Vitallium ingots are ideal for precision casting, powder manufacturing, and prototyping with exceptional metallurgical consistency.
The Living Alloy: Unyielding Strength for Life’s Most Critical Demands
Engineered for biocompatibility, fatigue strength, and corrosion resistance-Vitallium alloy is the trusted choice for critical medical, aerospace, and additive manufacturing applications.
Ingot Manufacturing Process
High-purity Vitallium alloy ingots produced from virgin elements using advanced Vacuum Induction Melting (VIM) technology.
RFQ from Customer
Alloy chemistry and ingot specifications are finalized as per application requirements.
Alloy Design/Planning
As per customer requirement mould design carried out and planned for charge preparation, charge sequences in VIM furnace. Careful selection of raw materials are the prime factor to achieve specified chemistry of an alloy.
Alloy Melting by VIM
Virgin elements are charged into the VIM furnace either in air or under vacuum, with precise adjustments made for trace element additions during melting.
Process & Quality Control
The melt is poured under vacuum into precision-engineered molds using an automatic tilting mechanism for defect-free solidification.
Primary Finishing
Post-casting processes include surface treatment, cropping, and preparation of ingots for downstream processing.
Testing & Packaging
Every batch is tested for chemical composition by Spark- OES / wet analysis / Gas analysis, and physical compliance as per customer specification before secure packaging.
Technical Specifications
Chemical Composition – Reference: ASTM F1537
| Elements | ASTM F1537 Standard | |
|---|---|---|
| Min | Max | |
| Chromium | 26% | 30% |
| Molybdenum | 5% | 7% |
| Iron | — | 0.75% |
| Carbon | — | 0.05% |
| Silicon | — | 1% |
| Manganese | — | 1% |
| Nickel | — | 1% |
| Nitrogen | — | 0.25% |
| Cobalt | Balance | Balance |
Process Capability
Properties
Vitallium is a cobalt-chromium-molybdenum alloy engineered for long-term performance in biomedical and high-temperature environments.
| Alloy | Mechanical properties* | PML alloy: as cast* | After Heat treatment* |
|---|---|---|---|
| PML Vitallium *Typical | Rockwell Hardness | 47 HRC | 34 HRC |
| Tensile Strength Ultimate (UTS) | 960MPa | 869 MPa | |
| Tensile Strength Yield (YS) | 680MPa | 644 MPa | |
| Elongation of Break | 10% | 12% Min | |
| Reduction of Area | - | 12% Min |
*Typical- Mechanical properties may vary as per heat treatment.
Vitallium: Precision-Engineered to Defy Friction and Time
The definitive high-strength superalloy for applications where failure is not an option and total biocompatibility is the standard.
Technical Specifications
Process Capability
Flexible small-batch melting and casting of Vitallium alloy.
| Input : Batch size | Output | Alloying Elements | Chemistry tolerance | Impurities Max |
|---|---|---|---|---|
| 30 kgs to 600 Kgs | Ingot of required shape as per customers requirement | Cr and W on Co- base | +/- 0.5 % for Higher level % (Above 2 digit) and +/- 0.3 % for lower level % (Single digit) | Oxygen < 25ppm Hydrogen < 3ppm Nitrogen < 50ppm All other impurities < 50 ppm |
Benefits:
With over six decades of expertise, PML delivers high-performance component technologies and precision solutions trusted across critical industries.
1
Flexible batch sizes
2
Consistent, reproducible high quality
3
Minimal gas impurity levels (H₂, O₂, N₂)
4
Evaporation of volatile non-ferrous impurities (Sn, Zn, Pb, Sb)
5
Reduced non-metallic inclusions
6
Ready-to-use ingots for powder metallurgy (MIM), strip production, rolling, forging, etc.
Applications
Vitallium ingots are suitable for:
1
Orthopaedic implants and dental prosthetics
2
Powder production via VIGA for additive manufacturing
3
Precision investment casting of biomedical and aerospace parts
4
Rapid prototyping and forming applications
5
Wear-resistant tooling for high-performance industries
Trust, Reliability & Quality
With over six decades of expertise, PML delivers high-performance component technologies and precision solutions trusted across critical industries.
ISO 45001
Occupational Health and Safety (OH&S) management systems
ISO 14001
Environmental Management Systems (EMS)
ISO 9001
Quality Management Systems (QMS)
IATF 16949
International Standard for Automotive Management Systems
AS 9100
Aerospace Quality Management System (QMS)
Frequently Asked Questions
Vitallium is a cobalt-based alloy (CoCrMo) designed for applications requiring fatigue strength, corrosion resistance, and biocompatibility—especially in medical implants.
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