Medical Grade Alloys
PML’s ASTM F75 ingots are precision-melted and tailored for additive manufacturing, investment casting, and high-performance component fabrication.
A masterclass in medical-grade metallurgy, offering an impenetrable defense against wear and corrosion.
High-purity ASTM F75 alloy ingots produced using advanced Vacuum Induction Melting (VIM) technology, ensuring metallurgical consistency and ultra-low impurity levels.
Melting parameters and ingot requirements are defined based on customer specifications and end-use application.
High-purity virgin metals are charged into the VIM furnace under atmosphere or vacuum, with alloy chemistry tailored through in-vacuum element additions.
Controlled vacuum melting with real-time spectrometry and oxygen analysis ensures consistent composition and microstructure.
Melt is poured using a fully automatic vacuum tilting mechanism into customized metallic molds for defect-free ingot formation.
Post-solidification, the ingots are processed and finished per customer needs—ready for downstream use in powder, strip, or forged product manufacturing.
Every ingot undergoes rigorous testing and inspection before secure packaging for dispatch.
Chemical Composition – Reference: ASTM F75-23
| Elements | ASTM F75 -23 Standard | |
|---|---|---|
| Min | Max | |
| Chromium | 27% | 30% |
| Molybdenum | 5% | 7% |
| Nickel | — | 0.5% |
| Iron | — | 0.75% |
| Carbon | — | 0.35% |
| Silicon | — | 1% |
| Manganese | — | 1% |
| Tungsten | — | 0.2% |
| Phosphorous | — | 0.02% |
| Sulphur | — | 0.01% |
| Nitrogen | — | 0.25% |
| Aluminium | — | 0.1% |
| Titanium | — | 0.1% |
| Boron | — | 0.01% |
| Cobalt | Balance | Balance |
ASTM F75 alloy offers high hardness and strength, with excellent elongation and resistance to fatigue and corrosion.
| Alloy | Mechanical properties* | PML alloy: as cast* | After Heat treatment* |
|---|---|---|---|
| PML F 75 alloy *Typical | Rockwell Hardness | 47 HRC | 34 HRC |
| Tensile Strength Ultimate (UTS) | 665MPa min | 960 MPa | |
| Tensile Strength Yield (YS) | 450MPa min | 560 MPa | |
| Elongation of Break | 8% | 20% | |
| Reduction of Area | - | 20% |
*Typical- Mechanical properties may vary as per heat treatment.
A premium cobalt-chromium-molybdenum alloy engineered for exceptional wear resistance, corrosion performance, and mechanical strength.
Flexible batch melting with tight control over composition and impurities—tailored for precision manufacturing workflows.
| 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 |
ASTM F75 alloy is ideal for
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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)
Environment IATF 16949 Policy
International Standard for Automotive Management Systems
AS 9100
Aerospace Quality Management System (QMS)
ASTM F75 is a cobalt-based alloy primarily used in biomedical implants, gas turbine parts, and wear-resistant components due to its superior corrosion and fatigue resistance.
PML’s Vitallium ingots are ideal for precision casting, powder manufacturing, and prototyping with exceptional metallurgical consistency.
PML’s Vitallium ingots are ideal for precision casting, powder manufacturing, and prototyping with exceptional metallurgical consistency.
Pioneering cutting-edge technology to develop reliable, high-performance magnetic components and engineering solutions.
