Cobalt Alloy Machining Services
Precision machining of Stellite®, Haynes® & cobalt-chrome for extreme environments.
ISO 9001:2015
Made in Canada
Years of Experience
Satisfied Customers
Overview
Pearson provides access to specialized cobalt-alloy machining for high-temperature and high-wear applications. Some work is completed at our Ontario facility; other projects are fulfilled through vetted Canadian partners, with sourcing, QA, and logistics coordinated end-to-end.
Quick Specs
| Family | Core Strength | Typical Uses |
|---|---|---|
| Stellite® (Co-Cr-W) | Exceptional wear & galling resistance; retains properties at temperature | Valve seats, cutting edges, hard-facing wear parts |
| Haynes® 25 / 188 | High-temp strength; oxidation/sulfidation resistance to ~1800–2000°F | Combustor parts, turbine rings, hot-section hardware |
| Co-Cr (ASTM F75) | Biocompatible; polishable to very smooth finishes | Surgical implants, wear-resistant medical components |
Our Capabilities
Our capabilities — performed in-house or through trusted partners — include:
- CNC Milling: contouring & surfacing of complex cobalt geometries
- Turning: precision shafts, sleeves & seals in cobalt alloys
- Drilling & Threading: high-precision holes & threads without chipping
- Surface Grinding: flatness & finish control on wear-critical parts
- Manual Machining: rework & low-volume modifications on tough alloys
- Repair & Finishing: weld prep, surfacing & restoration post-machining
Why Cobalt Alloys?
- Machining of high-temp, wear-resistant alloys with attention to tool life
- Tight tolerances supported with thermal control & rigid fixturing
- High-quality surface finishes for aerospace & medical use
- Extended component life in abrasive/oxidizing environments
- Experience with Stellite®, Haynes®, and Co-Cr medical grades
Our Equipment
The following equipment is used in-house or by certified partners depending on project needs:
- Carbide & CBN tooling for hard-to-cut alloys
- High-power CNC milling centers with thermal control
- Precision CNC lathes optimized for cobalt materials
- Surface & cylindrical grinding machines with diamond/CBN wheels
- Coolant delivery & temperature regulation systems
Common Cobalt Grades
- Stellite 6 & 12 – wear/galling resistance; valve seats, cutting edges
- Haynes 25 (L-605) & 188 – high-temperature strength/oxidation resistance
- Cobalt-Chrome (ASTM F75) – surgical/orthopedic components
Typical Applications
- Aerospace turbine seals & valve components
- Medical implant & surgical instrumentation
- Oil & gas downhole tool components
- Power generation burner & heat-exchanger parts
- Wear sleeves & cutting tool tips for metalworking
FAQ
What makes cobalt alloys challenging to machine?
High hardness and strong work-hardening; best practices include tough carbide/CBN tooling, controlled heat, and conservative chip loads.
What tolerances can you achieve on cobalt parts?
Typical production targets are around ±0.005″ (±0.13 mm) or better depending on geometry, tooling, and grade.
Can you achieve medical-grade surface finishes?
Yes — ground/polished Co-Cr can reach sub-micron Ra finishes suitable for implants, process-dependent.
Do you offer post-machining heat treatment or coatings?
We coordinate heat-treating and PVD/CVD coatings through certified partners to enhance wear and corrosion resistance.
Is this manufactured in-house?
Some cobalt alloy work is machined in-house at our Ontario facility; other projects run through our vetted Canadian partners. We coordinate sourcing and quality throughout.
Need Precise Cobalt Alloy Machining?
Share your specs and get a tailored quote, lead-time estimate, and metallurgical advice.
Request a Cobalt Quote